WorldWideScience

Sample records for airport traffic

  1. 14 CFR 93.123 - High density traffic airports.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false High density traffic airports. 93.123... (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES High Density Traffic Airports § 93.123 High density traffic airports. (a) Each of the following airports is designated as a...

  2. Systemic Approach to Traffic Evaluation of Mostar Airport

    Directory of Open Access Journals (Sweden)

    Eldo Raguž

    2005-11-01

    Full Text Available The attempt of this work is to systematically find solutionsfor Mostar Airport development through technical and technologicalharmonization of traffic processes undertaken in twoseparate organizations - airport and air traffic control and coordinationbetween other traffic branches. The work uses theindicators of traffic flows and tourist trends in the region, andtogether with the mentioned simulations it attempts to evaluatethe traffic potentials in the region by affecting the change in thecurrent negative traffic flows at Mostar Airport.

  3. Fluctuations in airport arrival and departure traffic: A network analysis

    Institute of Scientific and Technical Information of China (English)

    Li Shan-Mei; Xu Xiao-Hao; Meng Ling-Hang

    2012-01-01

    Air traffic is a typical complex system,in which movements of traffic components (pilots,controllers,equipment,and environment),especially airport arrival and departure traffic,form complicated spatial and temporal dynamics.The fluctuations of airport arrival and departure traffic are studied from the point of view of networks as the special correlation between different airports.Our collected flow volume data on the time-dependent activity of US airport arrival and departure traffic indicate that the coupling between the average flux and the fluctuation of an individual airport obeys a certain scaling law with a wide variety of scaling exponents between 1/2 and 1.These scaling phenomena can explain the interaction between the airport internal dynamics (e.g.queuing at airports,a ground delay program and following flying traffic) and a change in the external (network-wide) traffic demand (e.g.an increase in traffic during peak hours every day),allowing us to further understand the mechanisms governing the collective behaviour of the transportation system.We separate internal dynamics from external fluctuations using a scaling law which is helpful for us to systematically determine the origin of fluctuations in airport arrival and departure traffic,uncovering the collective dynamics.Hot spot features are observed in airport traffic data as the dynamical inhomogeneity in the fluxes of individual airports.The intrinsic characteristics of airport arrival and departure traffic under severe weather is discussed as well.

  4. Traffic Management System on Airport Manoeuvring Areas

    Directory of Open Access Journals (Sweden)

    Miroslav Borković

    2006-11-01

    Full Text Available In the last twenty years the number of flights at the busiestairports in the world has doubled, which, in the meantime hasled to a situation in which runways and taxi ways (manoeuvringareas cannot follow such substantial increase. As the result,many airports could not use their capacities in the full range interms of handling passengers and cargo. As a consequence,there were delays and traffic congestion, fuel was unnecessarilywasted, all of which caused negative impact on the environment.Traffic capacity increase on the ground cannot be consideredwithout the development and implementation of thesystem infrastructure that would optimize traffic flows and itsdistribution on the airport itself In these terms, and for positivesolution of these problems, a new system for surveillance andcontrol of aircraft on the airport manoeuvring areas is necessary,one which could be implemented fairly quickly, would becomplementary with the existing international standards andwould be upgraded to the existing and available technology andinfrastructure. With the implementation of the Advanced SurfaceMonitoring and Control System (A-SMGCS the aircrafttaxiing time could be significantly shortened and could be determinedmore accurately, which would have positive impacton the flight schedule. The unnecessary aircraft braking actionscould be also avoided, and this would reduce the fuel consumption,as well as noise and environmental pollution.

  5. A Fast-Time Simulation Tool for Analysis of Airport Arrival Traffic

    Science.gov (United States)

    Erzberger, Heinz; Meyn, Larry A.; Neuman, Frank

    2004-01-01

    The basic objective of arrival sequencing in air traffic control automation is to match traffic demand and airport capacity while minimizing delays. The performance of an automated arrival scheduling system, such as the Traffic Management Advisor developed by NASA for the FAA, can be studied by a fast-time simulation that does not involve running expensive and time-consuming real-time simulations. The fast-time simulation models runway configurations, the characteristics of arrival traffic, deviations from predicted arrival times, as well as the arrival sequencing and scheduling algorithm. This report reviews the development of the fast-time simulation method used originally by NASA in the design of the sequencing and scheduling algorithm for the Traffic Management Advisor. The utility of this method of simulation is demonstrated by examining the effect on delays of altering arrival schedules at a hub airport.

  6. Monte Carlo Analysis of Airport Throughput and Traffic Delays Using Self Separation Procedures

    Science.gov (United States)

    Consiglio, Maria C.; Sturdy, James L.

    2006-01-01

    This paper presents the results of three simulation studies of throughput and delay times of arrival and departure operations performed at non-towered, non-radar airports using self-separation procedures. The studies were conducted as part of the validation process of the Small Aircraft Transportation Systems Higher Volume Operations (SATS HVO) concept and include an analysis of the predicted airport capacity using with different traffic conditions and system constraints under increasing levels of demand. Results show that SATS HVO procedures can dramatically increase capacity at non-towered, non-radar airports and that the concept offers the potential for increasing capacity of the overall air transportation system.

  7. Macroscopic Model and Simulation Analysis of Air Traffic Flow in Airport Terminal Area

    Directory of Open Access Journals (Sweden)

    Honghai Zhang

    2014-01-01

    Full Text Available We focus on the spatiotemporal characteristics and their evolvement law of the air traffic flow in airport terminal area to provide scientific basis for optimizing flight control processes and alleviating severe air traffic conditions. Methods in this work combine mathematical derivation and simulation analysis. Based on cell transmission model the macroscopic models of arrival and departure air traffic flow in terminal area are established. Meanwhile, the interrelationship and influential factors of the three characteristic parameters as traffic flux, density, and velocity are presented. Then according to such models, the macro emergence of traffic flow evolution is emulated with the NetLogo simulation platform, and the correlativity of basic traffic flow parameters is deduced and verified by means of sensitivity analysis. The results suggest that there are remarkable relations among the three characteristic parameters of the air traffic flow in terminal area. Moreover, such relationships evolve distinctly with the flight procedures, control separations, and ATC strategies.

  8. 77 FR 19076 - High Density Traffic Airports; Notice of Determination Regarding Low Demand Periods at Ronald...

    Science.gov (United States)

    2012-03-30

    ...\\ 33 FR 17896 (Dec. 3, 1968). In 1985, the FAA issued part 93 subpart S (the ``Buy/Sell Rule'').\\2\\ As... the 0600 hour is not a low demand period.\\3\\ \\2\\ 50 FR 52195 (Dec. 20, 1985). \\3\\ 76 FR 58393 (Sept... Federal Aviation Administration 14 CFR Part 93 High Density Traffic Airports; Notice of...

  9. Analysis of airport traffic in the context of environmental throughput

    Directory of Open Access Journals (Sweden)

    Anna KWASIBORSKA

    2014-03-01

    Full Text Available Increased air transport volumes force carriers to make more frequent flights as well as airport operations. Unfortunately, such progress has some negative effects which the main is environment nuisances. Due to its reach, aircraft noise is one of the most important and unpleasant effects of airport operations. The problem of protecting the environment against noise is becoming increasingly more important on the international market. A lot is being done here by the European Union, which urges or obliges Member States to comply with certain rules, laws and standards aimed at preventing too much interference of socio-economic development with nature 19]. Considering how air transport is growing, it is necessary to conduct studies into airport throughput including throughput environment. This throughput is determined by Restricted Use Area and it is defined as acceptable daily number of performed air operations resulting from the noise limit at airport. There are the following noise level limits classification: noise level limits per flight which is measured at monitoring points, with special attention paid to those measures specific to night-time and noise volume limits over a time-period, particularly at night-time.

  10. Optimal Airport Surface Traffic Planning Using Mixed-Integer Linear Programming

    Directory of Open Access Journals (Sweden)

    P. C. Roling

    2008-01-01

    Full Text Available We describe an ongoing research effort pertaining to the development of a surface traffic automation system that will help controllers to better coordinate surface traffic movements related to arrival and departure traffic. More specifically, we describe the concept for a taxi-planning support tool that aims to optimize the routing and scheduling of airport surface traffic in such a way as to deconflict the taxi plans while optimizing delay, total taxi-time, or some other airport efficiency metric. Certain input parameters related to resource demand, such as the expected landing times and the expected pushback times, are rather difficult to predict accurately. Due to uncertainty in the input data driving the taxi-planning process, the taxi-planning tool is designed such that it produces solutions that are robust to uncertainty. The taxi-planning concept presented herein, which is based on mixed-integer linear programming, is designed such that it is able to adapt to perturbations in these input conditions, as well as to account for failure in the actual execution of surface trajectories. The capabilities of the tool are illustrated in a simple hypothetical airport.

  11. Heart Rate Variability as a Measure of Airport Ramp-Traffic Controllers Workload

    Science.gov (United States)

    Hayashi, Miwa; Dulchinos, Victoria Lee

    2016-01-01

    Heart Rate Variability (HRV) has been reported to reflect the person's cognitive and emotional stress levels, and may offer an objective measure of human-operator's workload levels, which are recorded continuously and unobtrusively to the task performance. The present paper compares the HRV data collected during a human-in-the-loop simulation of airport ramp-traffic control operations with the controller participants' own verbal self-reporting ratings of their workload.

  12. Airport Configuration Prediction Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Airport configuration is a primary factor in various airport characteristics such as arrival and departure capacities and terminal area traffic patterns. These...

  13. Simple Models for Airport Delays During Transition to a Trajectory-Based Air Traffic System

    Science.gov (United States)

    Brooker, Peter

    It is now widely recognised that a paradigm shift in air traffic control concepts is needed. This requires state-of-the-art innovative technologies, making much better use of the information in the air traffic management (ATM) system. These paradigm shifts go under the names of NextGen in the USA and SESAR in Europe, which inter alia will make dramatic changes to the nature of airport operations. A vital part of moving from an existing system to a new paradigm is the operational implications of the transition process. There would be business incentives for early aircraft fitment, it is generally safer to introduce new technologies gradually, and researchers are already proposing potential transition steps to the new system. Simple queuing theory models are used to establish rough quantitative estimates of the impact of the transition to a more efficient time-based navigational and ATM system. Such models are approximate, but they do offer insight into the broad implications of system change and its significant features. 4D-equipped aircraft in essence have a contract with the airport runway and, in return, they would get priority over any other aircraft waiting for use of the runway. The main operational feature examined here is the queuing delays affecting non-4D-equipped arrivals. These get a reasonable service if the proportion of 4D-equipped aircraft is low, but this can deteriorate markedly for high proportions, and be economically unviable. Preventative measures would be to limit the additional growth of 4D-equipped flights and/or to modify their contracts to provide sufficient space for the non-4D-equipped flights to operate without excessive delays. There is a potential for non-Poisson models, for which there is little in the literature, and for more complex models, e.g. grouping a succession of 4D-equipped aircraft as a batch.

  14. Spatio-temporal Estimates of CO2 Emissions in the Los Angeles Basin from On-road and Airport Traffic

    Science.gov (United States)

    Rao, P.; Song, Y.; Patarasuk, R.; Gurney, K. R.; Eldering, A.; O'Keeffe, D.; Miller, C. E.; Duren, R. M.

    2014-12-01

    Characterizing the spatio-temporal distribution of fossil fuel CO2 (FFCO2) emissions in urban landscapes is challenging. We use Hestia, an innovative "bottom up" approach for estimating FFCO2 emissions in the Los Angeles (LA) megacity and Southern California Air Basin (SCAB) which account for ~53% of the FFCO2 emissions in California. Hestia-LA, in coordination with "top down" atmospheric CO2 measurements, will provide baseline FFCO2 emissions, help monitor changes in emissions, and develop emissions mitigation policies. Hestia-LA characterizes FFCO2 emissions at the building/street spatial scale (10-100 m) and at hourly time steps in the basin by combining data on residential and commercial building emissions, industrial processes, electricity production, and different transportation sectors. We report here on the construction of the spatial and temporal structure in two key transportation sectors within the SCAB: on-road vehicle (46%) and aircraft (2%) emissions. We quantified on-road traffic emissions by merging traffic data from Southern California Association of Governments, California Freeway Performance Measurement System and modeled motor vehicle emissions from EPA's NMIM model. Preliminary analysis shows that (1) LA and Orange counties dominate the annual FFCO2 emissions from urban freeways and arterials, and (2) LA county has a wider peak traffic period during weekdays (2-6pm) than the other four counties (4-5pm). We characterized airport emissions by integrating information from Federal Aviation Administration, Los Angeles World Airports, and Airnav LLC for the temporal structure of aircraft arrivals and departures, and the National Emissions Inventory for total annual aircraft emissions. We categorized the 47 airports in LA basin based on the volume and type (commercial, general aviation and military) of aircraft traffic, and then assigned appropriate hour-of-day and day-of-week traffic volume-specific CO2 emission patterns to each airport. We found

  15. Impact of air traffic emissions on airport air quality. Multi-scale modeling, test bed and field measurements

    Science.gov (United States)

    Ramaroson, R.; Vuillot, F.; Durand, Y.; Courbet, B.; Janin, F.; Copalle, A.; Guin, C.; Paux, E.; Vannier, F.; Talbaut, M.; Weill, M.

    2004-12-01

    Air traffic emissions are playing a significant role in airport air quality. Engine emissions contribute to the ozone and PM formation. There is an emergence of a need to develop advanced numerical tools and airport emission databases for air pollution studies. Field monitoring at airports necessary to support model assessment is still limited in time and space. The French ONERA AIRPUR project has focused on three objectives: emission inventories; dispersion models; field measurements. Results are presented and discussed in this paper. The ground spatial distribution of LTO emissions using realistic aircraft trajectories, aircraft-engine classification by ICAO, fuel flow methodology and diurnal variations of fleet number, is presented and discussed. Exhaust species time evolution is simulated using a chemical-dispersion model. Results show high emissions of NOx during LTO, and a maximum of CO and Hydrocarbons during taxi. Depending on seasons, the NOx lifetime is varying differently; lower concentration is calculated far away from LTO emissions. Longer-lived pollutants such as ozone are formed downstream and require the use of advanced dispersion models. For this reason, two interactive models coupling the micro and the regional scales are developed and used in this work. A 3D CFD model (CEDRE) simulates the flow characteristics around buildings and the dispersion of emissions. CEDRE boundary conditions are provided by the 3D nested dispersion model MEDIUM/MM5, which includes a surface boundary layer chemistry and calculates the concentration of pollutants from the local to the airport vicinities. The CFD results show a tracer accumulation calculated downstream beside terminals, consistent with observations at some mega-airports. Sensibility studies are conducted to highlight the impact of emissions on ozone formation with MEDIUM. Results show that longer-lived species are produced downstream, their concentration depending on NOx, aromatics and VOC released by

  16. Optimal Airport Surface Traffic Planning Using Mixed-Integer Linear Programming

    NARCIS (Netherlands)

    Roling, P.C.; Visser, H.G.

    2008-01-01

    We describe an ongoing research effort pertaining to the development of a surface traffic automation system that will help controllers to better coordinate surface traffic movements related to arrival and departure traffic. More specifically, we describe the concept for a taxi-planning support tool

  17. Discussion on the cohesion of airport iandside traffic and terminal%谈机场陆侧交通与航站楼的衔接

    Institute of Scientific and Technical Information of China (English)

    唐恒

    2012-01-01

    对机场主要的陆侧交通方式——公路交通和轨道交通作了介绍,就陆侧交通方式与航站楼的衔接进行了探讨,并提到了地面交通中心给旅客带来的便利,为航站楼的设计提供了指导。%The essay introduces the main airport landside traffic methods highway traffic and rail transit, explores the cohesion of landside traffic method and terminal, and points out that ground traffic center provides convenience for passengers, which has provided guidance for the design of terminals.

  18. 76 FR 27743 - Notice of Availability of a Draft Environmental Assessment for a Proposed Airport Traffic Control...

    Science.gov (United States)

    2011-05-12

    ... visibility and improve safety of airport movement areas, have the capability to meet existing and future...-day public comment period at the following libraries: Champaign Public Library, 200 W Green...

  19. FAA Air Traffic Control Operations Concepts. Volume 5. ATCT/TCCC (airport Traffic Control Tower/Tower Control Computer Complex) Tower Controllers

    Science.gov (United States)

    1988-07-29

    MANAGEMENI RESIRICTI ".NS FO-DREFF’-ECT ON~ SEQUENCE J AS NECESSARY ’T2.1.1.7 ,I ? c II PROJECT AIRCRAFT/ VEHICLE PLA,"tJD TIME/ P, SITI•lO PRLE LE...REVIEW CURRENT AND R/A TRAFFIC. WEATHER, ALL LOGICAL N/A M H PROJECTED TRAFFIC TRAFFIC MANAGEMENI DISPLAYS STATUS/ WEATHER INFORMATON T3.0.3 MANAGING...STATEMENTS OBJECTS OBJECTS T3.4.1.5 DISCUSS TRAFFIC MANAGEMENI RESTRICTION PROCEDURES NITH CONTROLLER/ PILOT TASK TYPE: VC COORD MEDIA: V FREQUENCY: MED

  20. Improving the airport operation and environmental quality at small airports in indonesia

    Directory of Open Access Journals (Sweden)

    Sakti Adji Adisasmita

    2011-12-01

    Full Text Available The study purpose is to strengthen the policy and supervision of airport operation and improve the airport environmental quality to face Green Airport in the near future. The data used are primary and secondary data. The primary data is based on field survey, interview and questionnaires, while secondary data is based on data collected from various agencies. In general, the conclusions are as follows: i the study results show that the airport operator has given enough attention to the environmental management. With good environmental management, airport operator will find comfort in operating the airport such that airports could improve the operation and environmental quality control system; ii the concept of green airport can be a reference to the the airport operator such that the airport activities does not negatively impact to the environment; and iii the implementation of Green Airport concept will improve the quality of environment; and iv the application of green airport concept will reduce the costs of environmental management. The recommendations are i improve strategy and airport development in facing the green airport for the future challenges; and ii airport development plan should noticed since the beginning of airport planned/developed so as to facilitate for the availability airport land expansion, permits, changes in traffic patterns, aircraft technology and implementation of environmental management aspect.

  1. AIRPORT NOISE CHARGES AND LOCAL COMMUNITIES: APPLICATION TO REGIONAL AIRPORTS

    Directory of Open Access Journals (Sweden)

    LUCA MANTECCHINI

    2016-11-01

    Full Text Available There have always been conflicts among airports and local communities due to the aeronautical noise generated by airport operations. In fact, this is a factor that - if not properly managed - could severely cut down the growth of air traffic in an airport with direct effects on the economic and territorial system. Beside this, in the last decade the critical issues related to the impact of aeronautical noise on airport operations have greatly reduced, thanks to technological improvements in aircraft design. Nevertheless, the reduction of noise emissions during a single aircraft operation does not make the issue of the airports’ location less important. This is the case of regional airports in EU, which have recently experimented a large traffic increase due to the development of low-cost traffic. It is now clear that the problem cannot be reduced to its mere technological aspect, but it ought to be dealt with the involvement of the various stakeholders in order to mitigate the emissions and adequately compensate the impacts to local communities. Typically, there are two possible countermeasures to mitigate the effects of aircraft noise: operational measures, based on the application of technological and organizational devices and market-based measures. The application of noise taxes, aiming at compensating the negative externalities generated by airport operations is becoming increasingly widespread in EU. In this paper, a methodology for the application of noise taxes based on the actual noise of aircraft operating into an airport is discussed and implemented in a test case.

  2. Evolution of Chinese airport network

    CERN Document Server

    Zhang, Jun; Du, Wen-Bo; Cai, Kai-Quan

    2011-01-01

    With the rapid development of economy and the accelerated globalization process, the aviation industry plays more and more critical role in today's world, in both developed and developing countries. As the infrastructure of aviation industry, the airport network is one of the most important indicators of economic growth. In this paper, we investigate the evolution of Chinese airport network (CAN) via complex network theory. It is found that although the topology of CAN remains steady during the past several years, there are many dynamic switchings inside the network, which changes the relative relevance of airports and airlines. Moreover, we investigate the evolution of traffic flow (passengers and cargoes) on CAN. It is found that the traffic keeps growing in an exponential form and it has evident seasonal fluctuations. We also found that cargo traffic and passenger traffic are positively related but the correlations are quite different for different kinds of cities.

  3. Magnetic properties of urban soil profile and their significance for traffic pollution-Case,study of the capital airport expressway in Beijing

    Institute of Scientific and Technical Information of China (English)

    Mingjie SHEN; Shouyun HU; Uli.BLAHA; Haitao YAN; Wolfgang.R(O)SLER; Ewin.APPEL; Viktor.HOFFMANN

    2008-01-01

    An expressway-side soil profile 22 cm long was sampled from the grassland of the expressway linking Beijing and the Capital International Airport. Magnetic measurements, geochemical and multivariate statistic ana-lyses were performed on the soil samples. The results reveal that the soil profile can be divided into two parts with significant difference in magnetic proxies and heavy metal concentration. The uppermost soil horizon (0-8 cm) repre-sents the pollution-rich layer with higher concentration of ferrimagnetic phases and metallic elements. The values of X are very high with an average of 141.60 × 10-8 m3.kg-1 in the layer. We explain that the anthropogenic dust input from traffic is the predominant cause for strong signals of magnetic phases and heavy metals. Below the profile depth of 8 cm, there is minor pollution in the soil with lower concentration of magnetic minerals and heavy metals compared to the natural background values. X remains quite stable and relatively low with an average of depth, and it changes from 0.93 in the 0-8 cm layer to 0.87 below the depth of 8 cm. It indicates that the soil samples are overwhelmingly predominated by ferrimagnetic miner-als in the upper part soil, while the contribution of imper-fect antiferromagnetic components is stronger in the lower part. Rock magnetic experiments show MD magnetite as the main magnetic carrier both in the upper and lower parts. The magnetic grain size in the upper part is, however, a bit coarser than that in the lower part. Cluster analysis shows a positive correlation between magnetic properties (X, ARM, SIRM) and heavy metal pollutants of Pb, Zn, Cu. Fuzzy C-means cluster analysis can clearly help divide the soil profile into two different layers and distinguish their characteristics. It can be concluded that these mag-netic concentration-related parameters can be used as proxies for pollution investigation in a fast, sensitive, low-cost and highly efficient approach to screening heavy metal

  4. Airport Heterotopia

    DEFF Research Database (Denmark)

    Christiansen, Steen Ledet

    Airports are areas of transit, places of in-between-ness where mobility is key; airports function not just as transfer points where people are moved from one place to another, but also as areas where mobile technology is critically important to make sure that travellers can stay connected....... The airport serves as a node in the network of flows that is air travel. Airports orchestrate social life into distinct movements and behaviors. The ontology of the airport is peculiarly split between a sense of placelessness, while at the same time being a place of material organization and social complexity....... It is a system of interconnected material worlds, and thus a heterotopia; a blending space of overlapping ontologies. Ursula Le Guin playfully examines this concept of overlapping ontologies in her short story collection Changing Planes, where airport travellers can shift realities due to the unpleasantries...

  5. [Airport related air pollution and health effects].

    Science.gov (United States)

    Iavicoli, Ivo; Fontana, Luca; Ancona, Carla; Forastiere, Francesco

    2014-01-01

    Airport is an extremely complex emission source of airborne pollutants that can have a significant impact on the environment. Indeed, several airborne chemicals emitted during airport activities may significantly get worse air quality and increase exposure level of both airport workers and general population living nearby the airports. In recent years airport traffic has increased and consequently several studies investigated the association between airport-related air pollution and occurrence of adverse health effects, particularly on respiratory system, in exposed workers and general population resident nearby. In this context, we carried out a critical evaluation of the studies that investigated this correlation in order to obtain a deeper knowledge of this issue and to identify the future research needs. Results show that the evidence of association between airport-related air pollution and health effects on workers and residents is still limited.

  6. Public Airports

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a vector point digital data structure that contains the locations of General Public Use Airports in the State of New Mexico. It only contains those...

  7. Traffic Monitor

    Science.gov (United States)

    1992-01-01

    Mestech's X-15 "Eye in the Sky," a traffic monitoring system, incorporates NASA imaging and robotic vision technology. A camera or "sensor box" is mounted in a housing. The sensor detects vehicles approaching an intersection and sends the information to a computer, which controls the traffic light according to the traffic rate. Jet Propulsion Laboratory technical support packages aided in the company's development of the system. The X-15's "smart highway" can also be used to count vehicles on a highway and compute the number in each lane and their speeds, important information for freeway control engineers. Additional applications are in airport and railroad operations. The system is intended to replace loop-type traffic detectors.

  8. ORGANIZATIONAL CHANGE FOR THE ENVIRONMENTALLY SUSTAINABLE AIRPORT MANAGEMENT

    Directory of Open Access Journals (Sweden)

    Vildan Durmaz

    2011-11-01

    Full Text Available Air transportation industry is a globally growing industry. As an inseparable part of this industry, airport management is also becoming more crucial issue to be dealt with. Airports offer economic and social benefits to the society, but also environmental impacts of airport operations are increasing due to high traffic growth. While airport capacity is increasing, airport operators are being responsible for mitigating environmental constraints. Today to implement airport environmental management system is seen as a critical way of solution. To ensure effective implementation of this system, an organizational change with definite roles, responsibilities and structure are needed. This study illustrates a way of organizational response to market forces and national regulations guiding the achievement of sustainable airports by determining the structure and the roles in an airport organization.

  9. Modeling and Simulation Analysis of Microscopic Traffic Flow in Multi-airport Terminal Airspace%多机场终端区微观交通流建模与仿真分析

    Institute of Scientific and Technical Information of China (English)

    张洪海; 胡勇; 杨磊; 许炎

    2015-01-01

    In order to study the microscopic spatial and temporal characteristics and evolution law of air traffic flow in multi-airport terminal airspace,considering the operation characteristic of single, converging,and crossed traffic flow flying to the target point,a local sorting model,a aircraft-following model,and a maneuverable model for air traffic flow were established using the first-come-first-service principle and the stimulus-response aircraft-following theory. A multi-agent simulation platform based on the above models was then set up with NetLogo to simulate the traffic flow. The correlativity and sensitivity of basic traffic flow parameters as well as the interaction between arrival and departure traffic flow were analyzed through simulation experiments. The result indicates that notable phase transitions and hysteresis characteristic exist in the evolution process of the arrival traffic flow. The fundamental phase states can be divided into free,unconstrained,pseudo-congestion,and synchronization phases. There is a linear relationship between the traffic flow rate and the product of velocity and density. The control interval has a great influence on the traffic flow. There is an optimal control interval,and its value at the arrival intersection point is 8 km.%为研究多机场终端区交通流微观时空特性与演变规律,考虑终端区内单股、汇聚和交叉交通流具有基于目标点运行的基本特征,依据先到先服务原则,利用刺激-反射跟驰理论,建立了空中交通流局域排序模型、跟驰模型和机动模型.在此基础上,采用多智能体仿真工具NetLogo,构建了多机场终端区交通流仿真平台,仿真分析了进场交通流特征参数之间的关系和灵敏性,以及进离场交通流之间的相互影响.研究结果表明:多机场终端区进场交通流存在明显的相变与迟滞特征,形成自由相、畅行相、伪拥塞相和同步拥塞相等基本相态;流

  10. Heraklion Airport

    DEFF Research Database (Denmark)

    Frigaard, Peter

    Heraklion City is located on Crete Island, Grece with a population of 150000. In the project for extension of the airport at Heraklion, part of the runway is placed in the sea. The runway must be designed to resist attack from the waves. the observed wave and wind data in the period of 1949...

  11. Vienna international airport noise abatement

    Directory of Open Access Journals (Sweden)

    Heidelinde Jelinek-Nigitz

    2016-03-01

    Full Text Available Purpose: On the topic of sustainable aviation a study was carried out to measure the difference between the actual change in air traffic noise and the airport’s residents’ perception of the noise change at Vienna International Airport. Therefore, a questionnaire was developed in cooperation with the airport and an online survey was conducted. Design/methodology/approach: For the survey of the opinion of the affected population of the surrounding communities, a web based online questionnaire is created and distributed via various channels including e-mail, and online forums. After the basic structure of the questionnaire had been defined, the questions were developed in cooperation with employees form the environmental department of VIE, who had a sustainable influence on the questions’ order and formulation. As the survey was supposed to be answered by residents around VIE. Findings: Results of the online study show that only parts of the participants are affected by air traffic noise at VIE. Even less experienced a significant change over the last five years. About one third of the participants stated that they are affected by air traffic noise in one way or another. The majority of these people live in Lower Austria, the federal state in which the airport is located. The participants obviously judge air traffic noise during day time more importantly than air traffic noise at night. Research limitations/implications: Due to the low number of returns, no statistically relevant conclusions can be drawn, the results of the survey can be used to make some general statements. Originality/value: Economic growth and deregulation lead to growing aircraft operations. Vienna International Airport with its approximately 260,000 flight movements per year is the biggest airport in Austria and a major hub in Europe. The combination of constantly growing air transport and the resulting noise exposure, as well as the steadily increasing

  12. Vulnerability analysis for airport networks based on fuzzy soft sets: From the structural and functional perspective

    Directory of Open Access Journals (Sweden)

    Li Shanmei

    2015-06-01

    Full Text Available Recently, much attention has been paid to the reliability and vulnerability of critical infrastructure. In air traffic systems, the vulnerability analysis for airport networks can be used to guide air traffic administrations in their prioritization of the maintenance and repair of airports, as well as to avoid unnecessary disturbances in the planning of flight schedules. In this paper, the evaluation methods of airport importance and network efficiency are established. Firstly, the evaluation indices of airport importance are proposed from both the topological and functional perspectives. The topological characteristics come from the structure of airport network and the functional features stem from the traffic flow distribution taking place inside the network. Secondly, an integrated evaluation method based on fuzzy soft set theory is proposed to identify the key airports, which can fuse together importance indices over different time intervals. Thirdly, an airport network efficiency method is established for the purpose of assessing the accuracy of the evaluation method. Finally, empirical studies using real traffic data of US and China’s airport networks show that the evaluation method proposed in this paper is the most accurate. The vulnerability of US and China’s airport networks is compared. The similarities and differences between airport geography distribution and airport importance distribution are discussed here and the dynamics of airport importance is studied as well.

  13. 42 CFR 71.47 - Special provisions relating to airports: Office and isolation facilities.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Special provisions relating to airports: Office and.... Ports: Sanitary Inspection § 71.47 Special provisions relating to airports: Office and isolation facilities. Each U.S. airport which receives international traffic shall provide without cost to...

  14. Effect of advanced aircraft noise reduction technology on the 1990 projected noise environment around Patrick Henry Airport. [development of noise exposure forecast contours for projected traffic volume and aircraft types

    Science.gov (United States)

    Cawthorn, J. M.; Brown, C. G.

    1974-01-01

    A study has been conducted of the future noise environment of Patric Henry Airport and its neighboring communities projected for the year 1990. An assessment was made of the impact of advanced noise reduction technologies which are currently being considered. These advanced technologies include a two-segment landing approach procedure and aircraft hardware modifications or retrofits which would add sound absorbent material in the nacelles of the engines or which would replace the present two- and three-stage fans with a single-stage fan of larger diameter. Noise Exposure Forecast (NEF) contours were computed for the baseline (nonretrofitted) aircraft for the projected traffic volume and fleet mix for the year 1990. These NEF contours are presented along with contours for a variety of retrofit options. Comparisons of the baseline with the noise reduction options are given in terms of total land area exposed to 30 and 40 NEF levels. Results are also presented of the effects on noise exposure area of the total number of daily operations.

  15. Airports Geographic Information System -

    Data.gov (United States)

    Department of Transportation — The Airports Geographic Information System maintains the airport and aeronautical data required to meet the demands of the Next Generation National Airspace System....

  16. Aircraft noise in the region of the Bucharest-Otopeni Airport. [noise pollution in airport environment

    Science.gov (United States)

    Costescu, M.; Gherghel, C.; Curtoglu, A.

    1974-01-01

    Aircraft noise, especially in the region adjoining airports, constitutes a problem that will be aggravated in the near future because of increasing aircraft traffic and the appearance of new types of large tonnage aircraft with continuously increasing powers and speeds. Criteria for the evaluation of aircraft noise are reported and some results of studies carried out in the region of Bucharest-Otopeni Airport are detailed.

  17. Input-Output Modeling and Control of the Departure Process of Congested Airports

    Science.gov (United States)

    Pujet, Nicolas; Delcaire, Bertrand; Feron, Eric

    2003-01-01

    A simple queueing model of busy airport departure operations is proposed. This model is calibrated and validated using available runway configuration and traffic data. The model is then used to evaluate preliminary control schemes aimed at alleviating departure traffic congestion on the airport surface. The potential impact of these control strategies on direct operating costs, environmental costs and overall delay is quantified and discussed.

  18. A Seminar On Shanghai Airport Airspace Held

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    <正>A seminar on Shanghai airport airspace, sponsored by the airport’s second-phase project headquarters and East China Air Traffic Administration, was held in Shanghai between March 21 and 23.Present at the seminar were Shanghai Vice-Mayor

  19. Adaptive Airport Strategic Planning

    NARCIS (Netherlands)

    Kwakkel, J.H.; Walker, W.E.; Marchau, V.A.W.J.

    2010-01-01

    Airport Strategic Planning (ASP) focuses on the development of plans for the long-term development of an airport. The dominant approach for ASP is Airport Master Planning (AMP). The goal of AMP is to provide a detailed blueprint for how the airport should look in the future, and how it can get there

  20. Airport Project Goes Smoothly

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    <正>The Shanghai Airport Group Company has set up a headquarters to command a project to refurbish Pudong and Hongqiao airports. Construction on Pudong Airport will be completed by the end of 2007, while that on Hongqiao Airport will be finished by the end of 2009.

  1. Airport technology international 1993

    Science.gov (United States)

    Papagiorcopulo, George

    The present survey of developments in airport technologies and their management discusses airport extensions and upgradings, airport developments in China, polluter penalization, airport effects on environments, European ground-handling methods, ATC in Europe, EC duty-free sales at airports, and the privatization of airport security. Also discussed are airport advertising, new alternatives in air-cargo handling, ATC training, taxi-guidance systems, and the reduction of fuel consumption and emissions on the ground. (No individual items are abstracted in this volume)

  2. Modelling, Simulation, and Analysis of HAL BangaloreInternational Airport

    Directory of Open Access Journals (Sweden)

    P. Lathasree

    2007-11-01

    Full Text Available Air traffic density in India and the world at large is growing fast and posing challengingproblems. The problems encountered can be parameterized as flight delay, workload of air trafficcontrollers and noise levels in and around aerodromes. Prediction and quantification of theseparameters aid in developing strategies for efficient air traffic management. In this study, themethod used for quantifying is by simulation and analysis of the selected aerodrome and airspace. This paper presents the results of simulation of HAL Bangalore International Airport,which is used by civil as well as military aircraft. With the test flying of unscheduled militaryaircraft and the increase in the civil air traffic, this airport is hitting the limit of acceptable delay.The workload on air traffic controllers is pushed to high during peak times. The noise contourprediction, especially for the test flying military aircraft is sounding a wake up call to thecommunities living in the vicinity of the Airport.

  3. Light Rails at Kennedy Airport

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    <正>The Port Authority in New Jersey, New York opened a new light rail on December 18, 2003 to link Kennedy Airport to New York city. The rail with an investment of US$1.5 billion runs along the airport’s terminals, taxi stop, shuttle station and parking area to connect with the city’s downtown rail network, subways, railways and coach stations.The light rail is convenient, safe, reliable and fast to free passengers of the worries about traffic jam and the pressure

  4. Airport Pricing Strategies

    Science.gov (United States)

    Pels, Eric; Verhoef, Erik T.

    2003-01-01

    downward adjustments in welfare maximizing tolls may well cause the optimal values of these to be negative. Insofar as subsidization is considered unacceptable for whichever reason, our results warn that the most efficient among the non-negative tolls may actually be a zero toll; the pure congestion toll may actually decrease welfare compared to the base case. The model in this paper contains a few simplifying assumptions that may be relaxed in future work. Load factors and aircraft capacity are fixed in this model for simplicity. In a more advanced version of this model, load factors and aircraft capacity can be endogenized. This makes the derivation of the optimality conditions far more complicated, but it should be feasible in a numerical experiment. One can also add a fourth layer to the model, describing the airport's optimization problem. For example, the airport can maximize profits under a cost recovery constraint. The model then deals with interactions between four types of agents. No distinction is made between peak and off-peak traffic in this paper. Finally, the results of the numerical exercise in this paper need to be checked against an asymmetric equilibrium.

  5. Airport Configuration Prediction Project

    Data.gov (United States)

    National Aeronautics and Space Administration — There is presently poor knowledge throughout the National Airspace System (NAS) of the airport configurations currently in use at each airport. There is even less...

  6. Airport as city

    NARCIS (Netherlands)

    Yin, M.

    2011-01-01

    The airport city is a two-fold phenomenon: the areas surrounding the airport develop due to their proximity and accessibility to the terminal complex, and the terminal complex itself develops in to a pseudo-urban centre. This situation is manifest to varying extents in all major airports of the worl

  7. Lhasa Airport Gets Upgrade

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    On November 12, Gonggar Airport in Lhasa, capital of southwest China’s Tibet Autonomous Region, ended its 43-year history of not being able to handle night flights with a passenger jet bound for Chengdu City in neighboring Sichuan Province, taking off at 7:50 p.m.The progress is the result of a $150-million navigation lighting project that the airport completed in June.Gonggar Airport, situated 3,600 meters above sea level, is one of the world’shighest airports. It began operation in March 1956. After an expansion projectin 2001 -03, the airport can now handle 1.1 million passengers every year.

  8. ENVIRONMENTAL CAPACITY AND SUSTAINABLE DEVELOPMENT OF AIRPORTS IN UKRAINE

    Directory of Open Access Journals (Sweden)

    Katheryna Kazhan

    2011-03-01

    Full Text Available Abstract. Forecasting of development of the major airports of Ukraine indicates that further increasingof air traffic and approaching of residential areas close to airports will cause constraints of airportoperational capacity according to ensuring environmental requirements. At present, aircraft noise is themost significant factor among other factors of airport environmental impact. For ensuring sustainabledevelopment of civil airports the model of airport environmental capacity is proposed. The model in longtermconsideration allows determination of optimal (according to reduction of noise levels fleet, choosingthe most profitable aircraft operational regimes in the frames of ICAO Balanced Approach to aircraft noisecontrol. The model is based on entropy optimization method. Using proposed approach needs taking intoaccount additional constraints: operational, environmental (emissions of aircraft engines. Meteorologicaland flight characteristics of aircraft type also should be taken into account.Keywords: aircraft noise, acoustical capacity, environmental capacity, operational restrictions.

  9. Civil aviation impacts on local air quality: A survey inside two international airports in central Italy

    Science.gov (United States)

    Vichi, Francesca; Frattoni, Massimiliano; Imperiali, Andrea; Balducci, Catia; Cecinato, Angelo; Perilli, Mattia; Romagnoli, Paola

    2016-10-01

    The results of air quality monitoring carried out over several years (2008-2012) in two international airports near Rome (labelled as A and B) are reported and discussed. Airport A serves regular flights, airport B operates low-cost flights and, during the period investigated, had about 17% of airport A aircraft traffic load. Diffusive sampling of gaseous species (NO2, SO2, BTX and O3) was performed at several sites inside the airports. During 2012 the investigation was improved by including PM10 and polycyclic aromatic hydrocarbons (PAHs). Higher concentrations of NO2 (+18%) and lower of SO2 (-20%) were found at airport B, compared to A, over the whole period investigated. The maximum concentrations of SO2 were measured in 2011 at both airports (13.4 μg/m3 and 10.8 μg/m3 respectively for A and B), despite the decrease of aircraft traffic load recorded. Statistical analysis of PM10 data showed that there was no significant difference between the average concentrations measured at the two airports (25.7 μg/m3 and 27.4 μg/m3 for A and B respectively) and among the sites investigated. The concentration of PAHs at airport B (4.3 ng/m3) was almost twice that of airport A (2.2 ng/m3), though the respective percentages of compounds were similar. Airport B seemed to be negatively influenced by its surroundings, in particular by vehicular traffic flows of two major roads, whereas airport A was positively influenced by the proximity to the seaside. PCA data analysis showed that airport A sites are differently impacted by the LTO flight phases according to their position, whereas at airport B it was impossible to find similar relationships.

  10. Z Specification of Gate and Apron Control Management at Airport

    Directory of Open Access Journals (Sweden)

    Nazir Ahmad Zafar

    2014-01-01

    Full Text Available Modelling of an air traffic control (ATC system is an open issue and has become a challenging problem due to its complexity and increase of traffic at airports and in airspace. Consequently, automated ATC systems are suggested to improve efficiency ensuring the safety standards. It is reported that the number of collisions that occurred at airports surface is three times larger than in airspace. Further, it is observed that gates and aprons congestions cause significant delays at airports; hence, effective monitoring and guidance mechanisms are required to control ground air traffic. In this paper, formal procedure of managing air traffic from gate to enter in the active area of airport for taxiing is provided using Z notation. An integration of gate and apron controllers is described to manipulate the information for correct decision making and flow management. Graph theory is used for representation of airport topology and appropriate routs. In static part of the model, safety properties are described in terms of invariants over the critical data types. In dynamic model, the state space is updated by defining pre- and postconditions ensuring the safety. Formal specification is analysed using Z/Eves tool.

  11. INNOVATION OF AIRPORTS AND AERODROMES IN TRANSPORT

    Directory of Open Access Journals (Sweden)

    Tomasz BALCERZAK

    2016-03-01

    Full Text Available The paper attempts to characterize changes occurring in EU transport policy, taking into account innovation of airports and aerodromes. To face challenges like: increase in air traffic, ensuring safety of flight operations, regional development or requirements of passengers it is necessary to determine desired direction network of airports and aerodromes within the aviation policy, which is part of the national and European transport policy. Overview of national and EU studies, strategies and legislative plans enable to specify changes taking place in the EU aviation policy, as well as to create potential scenarios of its development with particular attention to the innovation of aerodromes and airports. Based on the above analysis it should be noted, that aims of the European institutions and agencies are: reduction amount of restrictive rules on general aviation (including GA aerodromes, spread concepts of multimodality and Small Aircraft Transport Systems, enhance competitiveness of the EU aviation sector but also reduction investment funding at airports. Conclusions may be a theoretical inspiration in the process of updating master plans of aerodromes and airports.

  12. Airport Ground Staff Scheduling

    DEFF Research Database (Denmark)

    Clausen, Tommy

    travels safely and efficiently through the airport. When an aircraft lands, a significant number of tasks must be performed by different groups of ground crew, such as fueling, baggage handling and cleaning. These tasks must be complete before the aircraft is able to depart, as well as check......-in and security services. These tasks are collectively known as ground handling, and are the major source of activity with airports. The business environments of modern airports are becoming increasingly competitive, as both airports themselves and their ground handling operations are changing to private...... ownership. As airports are in competition to attract airline routes, efficient and reliable ground handling operations are imperative for the viability and continued growth of both airports and airlines. The increasing liberalization of the ground handling market prompts ground handling operators...

  13. Modeling resilience, friability, and cost of an airport affected by the large-scale disruptive event

    NARCIS (Netherlands)

    Janic, M.

    2013-01-01

    This paper deals with modeling resilience, friability, and cost of an airport affected by the largescale disruptive event. These events affecting the airport's operations individually or in combination can be bad weather, failures of particular crucial aiiport and ATC (Air Traffic Control) component

  14. Tanzania - Mafia Island Airport

    Data.gov (United States)

    Millennium Challenge Corporation — The evaluation design and subsequent data gathering activities will address the following key research questions: a) Has the Mafia Island Airport Upgrade Project...

  15. Volcanic hazards to airports

    Science.gov (United States)

    Guffanti, M.; Mayberry, G.C.; Casadevall, T.J.; Wunderman, R.

    2009-01-01

    Volcanic activity has caused significant hazards to numerous airports worldwide, with local to far-ranging effects on travelers and commerce. Analysis of a new compilation of incidents of airports impacted by volcanic activity from 1944 through 2006 reveals that, at a minimum, 101 airports in 28 countries were affected on 171 occasions by eruptions at 46 volcanoes. Since 1980, five airports per year on average have been affected by volcanic activity, which indicates that volcanic hazards to airports are not rare on a worldwide basis. The main hazard to airports is ashfall, with accumulations of only a few millimeters sufficient to force temporary closures of some airports. A substantial portion of incidents has been caused by ash in airspace in the vicinity of airports, without accumulation of ash on the ground. On a few occasions, airports have been impacted by hazards other than ash (pyroclastic flow, lava flow, gas emission, and phreatic explosion). Several airports have been affected repeatedly by volcanic hazards. Four airports have been affected the most often and likely will continue to be among the most vulnerable owing to continued nearby volcanic activity: Fontanarossa International Airport in Catania, Italy; Ted Stevens Anchorage International Airport in Alaska, USA; Mariscal Sucre International Airport in Quito, Ecuador; and Tokua Airport in Kokopo, Papua New Guinea. The USA has the most airports affected by volcanic activity (17) on the most occasions (33) and hosts the second highest number of volcanoes that have caused the disruptions (5, after Indonesia with 7). One-fifth of the affected airports are within 30 km of the source volcanoes, approximately half are located within 150 km of the source volcanoes, and about three-quarters are within 300 km; nearly one-fifth are located more than 500 km away from the source volcanoes. The volcanoes that have caused the most impacts are Soufriere Hills on the island of Montserrat in the British West Indies

  16. Flight delay performance at Hartsfield-Jackson Atlanta International Airport

    Directory of Open Access Journals (Sweden)

    Grigoriy Yablonsky

    2014-01-01

    Full Text Available Purpose: The main objective of this paper is to determine the annual cyclical flight delays at Hartsfield-Jackson Atlanta International Airport. Then using other data such as annual precipitation, passenger and aircraft traffic volumes and other factors, we attempted to correlate these factors with overall delays. These data could assist airport management in predicting periods of flight delay.Design/methodology/approach: Data were taken and analyzed from the data base “Research and Innovation Technology Administration” (RITA for the years 2005-2011 for Hartsfield-Jackson Atlanta International Airport. The data included 2.8 million flights originating and departing from this airport. Data were also gathered from the National Oceanic and Atmospheric Administration (NOAA showing precipitation. Additional data were gathered from the FAA regarding delay causes, number and types of delays and changes to the infrastructure of ATL airportFindings: There is a repeatable annual pattern of delays at ATL that can be modeled using delay data from the Bureau of Transportation Statistics. This pattern appears to be caused primarily by the frequency and amount of precipitation that falls at ATL and by the amount of flights that arrive and depart at ATL.Originality/value: This information could assist airport operations personnel, FAA air traffic controllers and airlines in anticipating and mitigating delays at specific times of the year.

  17. An Algorithm for Managing Aircraft Movement on an Airport Surface

    Directory of Open Access Journals (Sweden)

    Giuseppe Maresca

    2013-08-01

    Full Text Available The present paper focuses on the development of an algorithm for safely and optimally managing the routing of aircraft on an airport surface in future airport operations. This tool is intended to support air traffic controllers’ decision-making in selecting the paths of all aircraft and the engine startup approval time for departing ones. Optimal routes are sought for minimizing the time both arriving and departing aircraft spend on an airport surface with engines on, with benefits in terms of safety, efficiency and costs. The proposed algorithm first computes a standalone, shortest path solution from runway to apron or vice versa, depending on the aircraft being inbound or outbound, respectively. For taking into account the constraints due to other traffic on an airport surface, this solution is amended by a conflict detection and resolution task that attempts to reduce and possibly nullify the number of conflicts generated in the first phase. An example application on a simple Italian airport exemplifies how the algorithm can be applied to true-world applications. Emphasis is given on how to model an airport surface as a weighted and directed graph with non-negative weights, as required for the input to the algorithm.

  18. The airport atmospheric environment: respiratory health at work.

    Science.gov (United States)

    Touri, Léa; Marchetti, Hélène; Sari-Minodier, Irène; Molinari, Nicolas; Chanez, Pascal

    2013-06-01

    Air traffic is increasing, raising concern about local pollution and its adverse health effects on the people living in the vicinity of large airports. However, the highest risk is probably occupational exposure due to proximity. Jet exhaust is one of the main concerns at an airport and may have a health impact, particularly on the respiratory tract. Current studies are neither numerous enough nor strong enough to prove this kind of association. Yet, more and more people work in airports, and occupational exposure to jet exhaust is a fact. The aim of this review was to evaluate the existing knowledge regarding the impact of airport pollution on respiratory health. We conducted systematic literature searches to examine workplace exposures.

  19. The airport atmospheric environment: respiratory health at work

    Directory of Open Access Journals (Sweden)

    Léa Touri

    2013-06-01

    Full Text Available Air traffic is increasing, raising concern about local pollution and its adverse health effects on the people living in the vicinity of large airports. However, the highest risk is probably occupational exposure due to proximity. Jet exhaust is one of the main concerns at an airport and may have a health impact, particularly on the respiratory tract. Current studies are neither numerous enough nor strong enough to prove this kind of association. Yet, more and more people work in airports, and occupational exposure to jet exhaust is a fact. The aim of this review was to evaluate the existing knowledge regarding the impact of airport pollution on respiratory health. We conducted systematic literature searches to examine workplace exposures.

  20. Assessment of Load Capacity of the Airport Pavement Structure With the Use of the Acn-Pcn Method

    Directory of Open Access Journals (Sweden)

    Wesołowski Mariusz

    2014-12-01

    Full Text Available The structures of the airport pavements are designed for defined operational time, assuming the predicted intensity and structure of the air traffic. The safety of air operations conducted by aircrafts on airport pavements depends mostly on their load capacity and design. Therefore, the load capacity inspections should be performed periodically, as the information about the current operational condition of the airport pavement is the basis for decisions on types of aircrafts allowed for traffic, as well as traffic intensity and dates of renovation or modernization works.

  1. Virtual Airport Simulation Technology: Perceptions of Airport Operations Initial Training Program Variables and Effectiveness for Airside Professional Competence

    Science.gov (United States)

    DeCarlo, Jeffrey

    2010-01-01

    Air travel is expected to grow by a factor of 2 to 3 times by 2025 and people working in the aviation system, including airport personnel, pilots, and air traffic controllers, must be able to safely and efficiently operate in this arena ("NextGen"). In response to the personnel training and education requirements concomitant with "NextGen,"…

  2. Progress on the Development of Future Airport Surface Wireless Communications Network

    Science.gov (United States)

    Kerczewski, Robert J.; Budinger, James M.; Brooks, David E.; Franklin, Morgan; DeHart, Steve; Dimond, Robert P.; Borden, Michael

    2009-01-01

    Continuing advances in airport surface management and improvements in airport surface safety are required to enable future growth in air traffic throughout the airspace, as airport arrival and departure delays create a major system bottleneck. These airport management and safety advances will be built upon improved communications, navigation, surveillance, and weather sensing, creating an information environment supporting system automation. The efficient movement of the digital data generated from these systems requires an underlying communications network infrastructure to connect data sources with the intended users with the required quality of service. Current airport surface communications consists primarily of buried copper or fiber cable. Safety related communications with mobile airport surface assets occurs over 25 kHz VHF voice and data channels. The available VHF spectrum, already congested in many areas, will be insufficient to support future data traffic requirements. Therefore, a broadband wireless airport surface communications network is considered a requirement for the future airport component of the air transportation system. Progress has been made on defining the technology and frequency spectrum for the airport surface wireless communications network. The development of a test and demonstration facility and the definition of required testing and standards development are now underway. This paper will review the progress and planned future work.

  3. 1998 Harrisburg Airport Survey

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set includes data collected in 1998 to evaluate the ability of lidar to survey airport obstructions in collaboration with NOAA National Geodetic Survey....

  4. Airport Status Web Service

    Data.gov (United States)

    Department of Transportation — A web service that allows end-users the ability to query the current known delays in the National Airspace System as well as the current weather from NOAA by airport...

  5. Cumulative Airport Noise Exposure Metrics: An Assessment of Evidence for Time-of-Day Weightings. Revision

    Science.gov (United States)

    1989-11-01

    Yeowart,et sites, Ldn more al., 1977; highly correlated p.135) I for motorway sites 1980 Austral- - nde ? >0,ɚ ? -b- Annoyance index ia 5-airport...Stationery Office, London. Yeowart, N.S.; Wilcox , D.J. and Possal, A.W. 1977, Community Reactions to Noise from Freely Flowing Traffic, Motorway Traffic and

  6. FIELD EXPERIMENTS AND MODELING AT CDG AIRPORTS

    Science.gov (United States)

    Ramaroson, R.

    2009-12-01

    Richard Ramaroson1,4, Klaus Schaefer2, Stefan Emeis2, Carsten Jahn2, Gregor Schürmann2, Maria Hoffmann2, Mikhael Zatevakhin3, Alexandre Ignatyev3. 1ONERA, Châtillon, France; 4SEAS, Harvard University, Cambridge, USA; 2FZK, Garmisch, Germany; (3)FSUE SPbAEP, St Petersburg, Russia. 2-month field campaigns have been organized at CDG airports in autumn 2004 and summer 2005. Air quality and ground air traffic emissions have been monitored continuously at terminals and taxi-runways, along with meteorological parameters onboard trucks and with a SODAR. This paper analyses the commercial engine emissions characteristics at airports and their effects on gas pollutants and airborne particles coupled to meteorology. LES model results for PM dispersion coupled to microphysics in the PBL are compared to measurements. Winds and temperature at the surface and their vertical profiles have been stored with turbulence. SODAR observations show the time-development of the mixing layer depth and turbulent mixing in summer up to 800m. Active low level jets and their regional extent have been observed and analyzed. PM number and mass size distribution, morphology and chemical contents are investigated. Formation of new ultra fine volatile (UFV) particles in the ambient plume downstream of running engines is observed. Soot particles are mostly observed at significant level at high power thrusts at take-off (TO) and on touch-down whereas at lower thrusts at taxi and aprons ultra the UFV PM emissions become higher. Ambient airborne PM1/2.5 is closely correlated to air traffic volume and shows a maximum beside runways. PM number distribution at airports is composed mainly by volatile UF PM abundant at apron. Ambient PM mass in autumn is higher than in summer. The expected differences between TO and taxi emissions are confirmed for NO, NO2, speciated VOC and CO. NO/NO2 emissions are larger at runways due to higher power. Reactive VOC and CO are more produced at low powers during idling at

  7. Background noise analysis in urban airport surroundings of Brazilian cities, Congonhas Airport, São Paulo

    Directory of Open Access Journals (Sweden)

    Fabio Scatolini

    Full Text Available ABSTRACT OBJECTIVE To perform a quantitative analysis of the background noise at Congonhas Airport surroundings based on large sampling and measurements with no interruption. METHODS Measuring sites were chosen from 62 and 72 DNL (day-night-level noise contours, in urban sites compatible with residential use. Fifteen sites were monitored for at least 168 hours without interruption or seven consecutive days. Data compilation was based on cross-reference between noise measurements and air traffic control records, and results were validated by airport meteorological reports. Preliminary diagnoses were established using the standard NBR-13368. Background noise values were calculated based on the Sound Exposure Level (SEL. Statistic parameters were calculated in one-hour intervals. RESULTS Only four of the fifteen sites assessed presented aircraft operations as a clear cause for the noise annoyance. Even so, it is possible to detect background noise levels above regulation limits during periods of low airport activity or when it closes at night. CONCLUSIONS All the sites monitored showed background noise levels above regulation limits between 7:00 and 21:00. In the intervals between 6:00-6:59 and 21:00-22:59 the noise data, when analyzed with the current airport operational characteristics, still allow the development of additional mitigating measures.

  8. A National Airport Conference Held

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    <正>A national working conference on civil airport was held at Ramada Pudong Airport Hotel on August 10. At the two-day conference, CAAC Minister Yang Yuanyuan and Shanghai Vice-Mayor Yang Xiong delivered speeches. Yang Guoqing, vice minister of CAAC, gave a working report on upgrading China’s civil airports.Yang Yuanyuan required all the airports to adhere to the

  9. 19 CFR 122.15 - User fee airports.

    Science.gov (United States)

    2010-04-01

    ..., California Southern California Logistics Airport. Waterford, Michigan Oakland County International Airport...-Palomar Airport. Daytona Beach, Florida Daytona Beach International Airport. Decatur, Illinois Decatur Airport. Egg Harbor Township, New Jersey Atlantic City International Airport. Englewood,...

  10. Airline competition at European airports

    NARCIS (Netherlands)

    K. Frenken; S. van Terwisga; T. Verburg; G. Burghouwt

    2004-01-01

    Hub-and-spoke networks of airlines create entry barriers at large hub airports. As a result, deregulation does not necessary lead to more competition. In this paper, airline competition at European airports in the 1990s is analysed. Results show important differences between airports, which are rela

  11. Automated Traffic Management System and Method

    Science.gov (United States)

    Glass, Brian J. (Inventor); Spirkovska, Liljana (Inventor); McDermott, William J. (Inventor); Reisman, Ronald J. (Inventor); Gibson, James (Inventor); Iverson, David L. (Inventor)

    2000-01-01

    A data management system and method that enables acquisition, integration, and management of real-time data generated at different rates, by multiple heterogeneous incompatible data sources. The system achieves this functionality by using an expert system to fuse data from a variety of airline, airport operations, ramp control, and air traffic control tower sources, to establish and update reference data values for every aircraft surface operation. The system may be configured as a real-time airport surface traffic management system (TMS) that electronically interconnects air traffic control, airline data, and airport operations data to facilitate information sharing and improve taxi queuing. In the TMS operational mode, empirical data shows substantial benefits in ramp operations for airlines, reducing departure taxi times by about one minute per aircraft in operational use, translating as $12 to $15 million per year savings to airlines at the Atlanta, Georgia airport. The data management system and method may also be used for scheduling the movement of multiple vehicles in other applications, such as marine vessels in harbors and ports, trucks or railroad cars in ports or shipping yards, and railroad cars in switching yards. Finally, the data management system and method may be used for managing containers at a shipping dock, stock on a factory floor or in a warehouse, or as a training tool for improving situational awareness of FAA tower controllers, ramp and airport operators, or commercial airline personnel in airfield surface operations.

  12. Use of social media by airports

    Directory of Open Access Journals (Sweden)

    Nigel Halpern

    2012-10-01

    Full Text Available This article investigates the use of social media by airports using content analysis of 1,559 airport websites. One-fifth of airports use at least one type of social media. There is a greater use of social media by airports in North America and Europe, by larger airports, and by airports that are owned and operated by private interests. Demand for social media is greater at airports in North America and Europe, and at larger airports. Findings from 183 airport Twitter accounts demonstrate a positive correlation between the extent to which airports are active users of social media and the number of followers that they have.

  13. Airport operator and aircraft operator in case of bird strike. Relations, obligations and liability

    Directory of Open Access Journals (Sweden)

    Sylwia KACZYŃSKA-ADAMCZYK

    2011-01-01

    Full Text Available Air transport is subject to various risks. One of them is bird strike hazard. Despite numerous regulations concerning prevention from this type of occurrence, it is not possible to eliminate them entirely.Bird strikes most often take place during take-off and landing, that is on or in the vicinity of an airport. For that reason airport operators are the first parties that can be made accountable for this occurence. International law imposes numerous responsibilities on airport operators in terms of bird strike hazard prevention on air operations, thus placing airport operators in a “key position” in the system of safety. However, the party that suffers significant damages in the first instance, is the aircraft operator. If a bird strike takes place on or in the vicinity of an airport, an aicraft operator can sue the airport operator for compensation of damages. Generally, the issue of indemnity is subject to out of court negotiations, however instances in which there is a lack of agreement between the parties, i.e. airport operator, aircraft operator or their insurers, lead to legal proceedings for compensation.This article attempts to illustrate the relationship between air traffic participants such as airport operators and aircraft operators in connection with their obligations and liability, particulary taking into account the legal obligations of an airport operator.

  14. Measuring the levels of noise at the İstanbul Atatürk Airport and comparisons with model simulations.

    Science.gov (United States)

    Sari, Deniz; Ozkurt, Nesimi; Akdag, Ali; Kutukoglu, Murat; Gurarslan, Aliye

    2014-06-01

    Airport noise and its impact on the surrounding areas are major issues in the aviation industry. The İstanbul Atatürk Airport is a major global airport with passenger numbers increasing rapidly per annum. The noise levels for day, evening and night times were modeled around the İstanbul Atatürk Airport according to the European Noise Directive using the actual data records for the year 2011. The "ECAC Doc. 29-Interim" method was used for the computation of the aircraft traffic noise. In the setting the noise model for the local airport topography was taken into consideration together with the noise source data, the airport loadings, features of aircraft and actual air traffic data. Model results were compared with long-term noise measurement values for calibration. According to calibration results, classifications of the aircraft type and flight tracks were revised. For noise model validation, the daily noise measurements at four additional locations were used during the verification period. The input data was re-edited only for these periods and the model was validated. A successful model performance was obtained in several zones around the airport. The validated noise model of the İstanbul Atatürk Airport can be now utilized both for determining the noise levels in the future and for producing new strategies which are about the land use planning, operational considerations for the air traffic management and the noise abatement procedures.

  15. AN AIRPORT MODERNIZES

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    t is all systems go for the new Terminal 3 at the Beijing Capital International Airport(BCLA).Called the"Gateway Project,"Terminal 3 passed its final tests on November 6 and will begin operations as of February 2008.

  16. Air Traffic Flow Management

    CERN Document Server

    Ganu, Hrishikesh V

    2008-01-01

    Air Traffic Flow Management is the regulation of air traffic in order to avoid exceeding airport or flight sector capacity in handling traffic, and to ensure that available capacity is used efficiently. We have tried to explore the logic behind the claims by Bertsimas et.al about integral solutions to the LP relaxation of the Traffic Flow Management Problem(TFMP). Polyhedral theory only indicates that the stronger TFMP formulation of Bertsimas et.al might lead to integral solutions in some cases. Our computations indicate that the encouraging results reported by Bertsimas et.al are not merely fortuitous or due to their specific data set. Indeed, we found that the TFMP had integral solutions even in case of artificial data sets generated to include severe conflicts in the flight schedules. In our limited tests with 4-5 scenarios, we obtained non-integral solutions only once. This is of significant practical importance because, the LP relaxation can be solved even on small machines with low memory and processor...

  17. Operational Characteristics Identification and Simulation Model Verification for Incheon International Airport

    Science.gov (United States)

    Eun, Yeonju; Jeon, Daekeun; Lee, Hanbong; Zhu, Zhifan; Jung, Yoon C.; Jeong, Myeongsook; Kim, Hyounkyong; Oh, Eunmi; Hong, Sungkwon; Lee, Junwon

    2016-01-01

    Incheon International Airport (ICN) is one of the hub airports in East Asia. Airport operations at ICN have been growing more than 5 percent per year in the past five years. According to the current airport expansion plan, a new passenger terminal will be added and the current cargo ramp will be expanded in 2018. This expansion project will bring 77 new stands without adding a new runway to the airport. Due to such continuous growth in airport operations and future expansion of the ramps, it will be highly likely that airport surface traffic will experience more congestion, and therefore, suffer from efficiency degradation. There is a growing awareness in aviation research community of need for strategic and tactical surface scheduling capabilities for efficient airport surface operations. Specific to ICN airport operations, a need for A-CDM (Airport - Collaborative Decision Making) or S-CDM (Surface - Collaborative Decision Making), and controller decision support tools for efficient air traffic management has arisen since several years ago. In the United States, there has been independent research efforts made by academia, industry, and government research organizations to enhance efficiency and predictability of surface operations at busy airports. Among these research activities, the Spot and Runway Departure Advisor (SARDA) developed and tested by National Aeronautics and Space Administration (NASA) is a decision support tool to provide tactical advisories to the controllers for efficient surface operations. The effectiveness of SARDA concept, was successfully verified through the human-in-the-loop (HITL) simulations for both spot release and runway operations advisories for ATC Tower controllers of Dallas-Fort Worth International Airport (DFW) in 2010 and 2012, and gate pushback advisories for the ramp controller of Charlotte-Douglas International Airport (CLT) in 2014. The SARDA concept for tactical surface scheduling is further enhanced and is being

  18. Traffic Flow Management Wrap-Up

    Science.gov (United States)

    Grabbe, Shon

    2011-01-01

    Traffic Flow Management involves the scheduling and routing of air traffic subject to airport and airspace capacity constraints, and the efficient use of available airspace. Significant challenges in this area include: (1) weather integration and forecasting, (2) accounting for user preferences in the Traffic Flow Management decision making process, and (3) understanding and mitigating the environmental impacts of air traffic on the environment. To address these challenges, researchers in the Traffic Flow Management area are developing modeling, simulation and optimization techniques to route and schedule air traffic flights and flows while accommodating user preferences, accounting for system uncertainties and considering the environmental impacts of aviation. This presentation will highlight some of the major challenges facing researchers in this domain, while also showcasing recent innovations designed to address these challenges.

  19. Aircraft Noise and Quality of Life around Frankfurt Airport

    OpenAIRE

    Thomas Eikmann; Christin Peschel; Cara Kahl; Dirk Schreckenberg; Markus Meis

    2010-01-01

    In a survey of 2,312 residents living near Frankfurt Airport aircraft noise annoyance and disturbances as well as environmental (EQoL) and health-related quality of life (HQoL) were assessed and compared with data on exposure due to aircraft, road traffic, and railway noise. Results indicate higher noise annoyance than predicted from general exposure-response curves. Beside aircraft sound levels source-related attitudes were associated with reactions to aircraft noise. Furthermore, aircraft n...

  20. A Study of Airports - Design, Art and Architecture

    Science.gov (United States)

    1981-04-01

    area. Large sweeps of blue,parking lots, and other facilities. yellow, and red wildflowers de- Airtrans is a completely auto- signed by artist Chapman...airport, there are large masses of vegetation, strong earth forms, and broad areas of grass and wildflowers . Because of high speed traffic and the large... California 93727 duce confusion to the traveler Two of the exterior walls dis- monitored and have not caused Tower Chief by establishing strict controls

  1. [Airports and air quality: a critical synthesis of the literature].

    Science.gov (United States)

    Cattani, Giorgio; Di Menno di Bucchianico, Alessandro; Gaeta, Alessandra; Romani, Daniela; Fontana, Luca; Iavicoli, Ivo

    2014-01-01

    This work reviewed existing literature on airport related activities that could worsen surrounding air quality; its aim is to underline the progress coming from recent-year studies, the knowledge emerging from new approaches, the development of semi-empiric analytical methods as well as the questions still needing to be clarified. To estimate pollution levels, spatial and temporal variability, and the sources relative contributions integrated assessment, using both fixed point measurement and model outputs, are needed. The general picture emerging from the studies was a non-negligible and highly spatially variable (within 2-3 km from the fence line) airport contribution; even if it is often not dominant compared to other concomitant pollution sources. Results were highly airport-specific. Traffic volumes, landscape and meteorology were the key variables that drove the impacts. Results were thus hardly exportable to other contexts. Airport related pollutant sources were found to be characterized by unusual emission patterns (particularly ultrafine particles, black carbon and nitrogen oxides during take-off); high time-resolution measurements allow to depict the rapidly changing take-off effect on air quality that could not be adequately observed otherwise. Few studies used high time resolution data in a successful way as statistical models inputs to estimate the aircraft take-off contribution to the observed average levels. These findings should not be neglected when exposure of people living near airports is to be assessed.

  2. Literature review of the airport business

    NARCIS (Netherlands)

    Carmona Benitez, R.B.; Lodewijks, G.

    2008-01-01

    Airports are very important for economic growth. The demand for airport capacity has been growing very fast and private companies are now also investing in airport infrastructure. Airports must however be regulated because they are natural monopolies with high market power. Airports have variables

  3. Airport noise and teratogenesis

    Energy Technology Data Exchange (ETDEWEB)

    Edmonds, L.D.; Layde, P.M.; Erickson, J.D.

    1979-07-01

    It has been suggested that exposure to high-noise levels near major airports may cause increased incidence of birth defects in the offspring of parents residing near these airports. Using data gathered in Metropolitan Atlanta during 1970 to 1972, we compared the rates of seventeen categories of defects in high- and low-noise census tracts. No significant differences were observed. However, when we subdivided the category of central nervous system defects into several subcategories of specific defects, we noted a significantly increased incidence of spina bifida without hydrocephalus in the high-noise areas. Because of the small number of cases associated with this finding we did a matched case-control study using all cases of central nervous system defects born during the years 1968 to 1976. No significantly increased risk for residents in the high-noise areas was noted in this study. It is our opinion that noise or other factors associated with residence near airports are unlikely to be important environmental teratogens.

  4. CYBER SECURITY FOR AIRPORTS

    Directory of Open Access Journals (Sweden)

    Kasthurirangan Gopalakrishnan

    2013-12-01

    Full Text Available In today’s information age, government organizations and business enterprises are heavily relying on interconnected computer systems to manage a variety of public services including energy, transportation, water, etc. While this increased connectivity has many operational advantages benefitting the public, they have also become vulnerable to cyber attacks such as Corporate Security Breaches, Spear Phishing, and Social Media Fraud. The aviation sector is one the critical infrastructure systems that is not only vulnerable to physical threats, but also cyber threats, especially with the increased use of Bring Your Own Device (BYOD at airports. It has been recognized that there is currently no cyber security standards established for airports in the United States as the existing standards have mainly focused on aircraft Control System (CS. This paper summarizes the need, background, ongoing developments and research efforts with respect to the establishment of cyber-security standards and best practices at U.S. airports with special emphasis on cyber security education and literacy.

  5. The employment and income benefits of airport operation on the country in transition

    Directory of Open Access Journals (Sweden)

    Sonia Huderek-Glapska

    2013-03-01

    Full Text Available Background: The air transport market in Poland is undergoing significant changes, which take place both on the demand and supply side. Polish airports have experienced the unprecedented growth of air traffic. However, the increase in the number of airline connections - which benefits airports, passengers, aircraft industry and, indirectly, the whole society - at the same time results in the growth of social costs reflected by the intensification of noise and environmental pollution. The benefits of airport operation are reflected in the generation of employment and income. Existing literature reveals a gap in the knowledge in respect of impact of aviation in countries in transition. Material and methods: This paper investigates the applicability of socio-economic impact of air transport model to country in transition. In particular, it presents the employment and income benefits of airport operation. The input-output model is employed to measure the economic benefits of airport operation. The largest airport in Poland, Warsaw Chopin Airport is used as a case study. Results: The estimation results for the income and employment effects are found to be significant.  The operations of Warsaw Chopin Airport contributed to the generation of 527.8m EUR in current prices in 2011. Altogether, 19,349 jobs have been generated as the result of the direct, indirect and induced impact of Warsaw Chopin Airport.  Conclusion:  The size of production in the airport expressed in the number of aircraft operations and the number of passengers and goods serviced is positively correlated with the level of economic impact. The restriction on the development of the airport reflected by the inability to meet transport needs expressed by the society may generate opportunity costs.  

  6. Airports and Airfields - AIRPORTS_NTAD_IN: Public Use Airports in Indiana (Bureau of Transportation Statistics, Point Shapefile)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Bernardin-Lochmueller and Associates (BLA) created an Indiana subset of the NTAD airports dataset described below. Dataset includes airports, heliports, seaplane...

  7. Airports and Navigation Aids Database System -

    Data.gov (United States)

    Department of Transportation — Airport and Navigation Aids Database System is the repository of aeronautical data related to airports, runways, lighting, NAVAID and their components, obstacles, no...

  8. A global airport-based risk model for the spread of dengue infection via the air transport network.

    Directory of Open Access Journals (Sweden)

    Lauren Gardner

    Full Text Available The number of travel-acquired dengue infections has seen a consistent global rise over the past decade. An increased volume of international passenger air traffic originating from regions with endemic dengue has contributed to a rise in the number of dengue cases in both areas of endemicity and elsewhere. This paper reports results from a network-based risk assessment model which uses international passenger travel volumes, travel routes, travel distances, regional populations, and predictive species distribution models (for the two vector species, Aedes aegypti and Aedes albopictus to quantify the relative risk posed by each airport in importing passengers with travel-acquired dengue infections. Two risk attributes are evaluated: (i the risk posed by through traffic at each stopover airport and (ii the risk posed by incoming travelers to each destination airport. The model results prioritize optimal locations (i.e., airports for targeted dengue surveillance. The model is easily extendible to other vector-borne diseases.

  9. Characterization of delay propagation in the airport network

    CERN Document Server

    Fleurquin, Pablo; Eguíluz, Victor M

    2013-01-01

    Complex networks provide a suitable framework to model air traffic. Previous works described the world air-traffic network as a graph with direct flights between airports as edges and passenger commercial airports as vertices. In this work we study the US airport network, in the time period 2005-2011. We characterize the topological structure of the network and identify how the plane rotations adjust to it. The reactionary delays are supposed to propagate following the structure of this network. We analyze the properties of flight delays including the total distribution of delays, the delays per day of the week and the hour-by-hour evolution of the delays within each day. We pay special attention to the long-delayed flights, those accumulating delays longer than 12 hours, and study when and where this type of incidences is most common. The goal of this work is to gain a better understanding of the factors contributing to the reactionary delay propagation with the aim of developing models able to realistically...

  10. A New Intelligent Airplane Landing Planning Method in Congested Airports

    Directory of Open Access Journals (Sweden)

    Kazem Dastgerdi

    2015-06-01

    Full Text Available Nowadays considering many advantages of air traveling, we notice that traffic congestion has significantly increased in airspace of countries, and it is expected that this growth rate, increases even more in the forthcoming years.This growth rate and different limitations posed on developing some airports led to the problem of landing airplanes to become one of the most important issues formed in the field of aviation. In this paper, in the form of a new approach based on CPSO algorithm for intelligent landing planning, determining optimal landing times, optimal allocation of runways, and at last the order of successive landings of planes has been done in a way that appropriately fulfills the main goal of the problem (minimizing the total flights delays; thus helping significantly to controlling air traffic congestion in airports approaches. The simulation results show that compared to the last presented methods, including methods based on genetic algorithms, GLS and Bionomic, has decreased the total amounts of flight delays considerably. Getting zero for total amount of flight delays for the two problems with real data of DFW airport in Texas, United States, confirms the more capability of CPSO algorithm compared to the other intelligent methods for obtaining optimal solutions to the problem.

  11. 19 CFR 122.84 - Intermediate airport.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Intermediate airport. 122.84 Section 122.84... Intermediate airport. (a) Application. The provisions of this section apply at any U.S. airport to which an... aircraft arrives at the next airport, the aircraft commander or agent shall make entry by filing the:...

  12. 14 CFR 141.38 - Airports.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airports. 141.38 Section 141.38 Aeronautics... CERTIFICATED AGENCIES PILOT SCHOOLS Personnel, Aircraft, and Facilities Requirements § 141.38 Airports. (a) An... has continuous use of each airport at which training flights originate. (b) Each airport used...

  13. Airport Careers. Aviation Careers Series. Revised.

    Science.gov (United States)

    Zaharevitz, Walter

    This booklet, one in a series on aviation careers, outlines the variety of careers available in airports. The first part of the booklet provides general information about careers at airports, while the main part of the booklet outlines the following nine job categories: airport director, assistant airport director, engineers, support personnel,…

  14. Conducting Safe and Efficient Airport Surface Operations in a NextGen Environment

    Science.gov (United States)

    Jones, Denise R.; Prinzel, Lawrence J., III; Bailey, Randall E.; Arthur, Jarvis J., III; Barnes, James R.

    2016-01-01

    The Next Generation Air Transportation System (NextGen) vision proposes many revolutionary operational concepts, such as surface trajectory-based operations (STBO) and technologies, including display of traffic information and movements, airport moving maps (AMM), and proactive alerts of runway incursions and surface traffic conflicts, to deliver an overall increase in system capacity and safety. A piloted simulation study was conducted at the National Aeronautics and Space Administration (NASA) Langley Research Center to evaluate the ability of a flight crew to conduct safe and efficient airport surface operations while utilizing an AMM. Position accuracy of traffic was varied, and the effect of traffic position accuracy on airport conflict detection and resolution (CD&R) capability was measured. Another goal was to evaluate the crew's ability to safely conduct STBO by assessing the impact of providing traffic intent information, CD&R system capability, and the display of STBO guidance to the flight crew on both head-down and head-up displays (HUD). Nominal scenarios and off-nominal conflict scenarios were conducted using 12 airline crews operating in a simulated Memphis International Airport terminal environment. The data suggest that all traffic should be shown on the airport moving map, whether qualified or unqualified, and conflict detection and resolution technologies provide significant safety benefits. Despite the presence of traffic information on the map, collisions or near-collisions still occurred; when indications or alerts were generated in these same scenarios, the incidents were averted. During the STBO testing, the flight crews met their required time-of-arrival at route end within 10 seconds on 98 percent of the trials, well within the acceptable performance bounds of 15 seconds. Traffic intent information was found to be useful in determining the intent of conflicting traffic, with graphical presentation preferred. The CD&R system was only

  15. Determining the sensitivity of Data Envelopment Analysis method used in airport benchmarking

    Directory of Open Access Journals (Sweden)

    Mircea BOSCOIANU

    2013-03-01

    Full Text Available In the last decade there were some important changes in the airport industry, caused by the liberalization of the air transportation market. Until recently airports were considered infrastructure elements, and they were evaluated only by traffic values or their maximum capacity. Gradual orientation towards commercial led to the need of finding another ways of evaluation, more efficiency oriented. The existing methods for assessing efficiency used for other production units were not suitable to be used in case of airports due to specific features and high complexity of airport operations. In the last years there were some papers that proposed the Data Envelopment Analysis as a method for assessing the operational efficiency in order to conduct the benchmarking. This method offers the possibility of dealing with a large number of variables of different types, which represents the main advantage of this method and also recommends it as a good benchmarking tool for the airports management. This paper goal is to determine the sensitivity of this method in relation with its inputs and outputs. A Data Envelopment Analysis is conducted for 128 airports worldwide, in both input- and output-oriented measures, and the results are analysed against some inputs and outputs variations. Possible weaknesses of using DEA for assessing airports performance are revealed and analysed against this method advantages.

  16. Taxi Time Prediction at Charlotte Airport Using Fast-Time Simulation and Machine Learning Techniques

    Science.gov (United States)

    Lee, Hanbong

    2016-01-01

    Accurate taxi time prediction is required for enabling efficient runway scheduling that can increase runway throughput and reduce taxi times and fuel consumptions on the airport surface. Currently NASA and American Airlines are jointly developing a decision-support tool called Spot and Runway Departure Advisor (SARDA) that assists airport ramp controllers to make gate pushback decisions and improve the overall efficiency of airport surface traffic. In this presentation, we propose to use Linear Optimized Sequencing (LINOS), a discrete-event fast-time simulation tool, to predict taxi times and provide the estimates to the runway scheduler in real-time airport operations. To assess its prediction accuracy, we also introduce a data-driven analytical method using machine learning techniques. These two taxi time prediction methods are evaluated with actual taxi time data obtained from the SARDA human-in-the-loop (HITL) simulation for Charlotte Douglas International Airport (CLT) using various performance measurement metrics. Based on the taxi time prediction results, we also discuss how the prediction accuracy can be affected by the operational complexity at this airport and how we can improve the fast time simulation model before implementing it with an airport scheduling algorithm in a real-time environment.

  17. 76 FR 30822 - Technical Amendment to List of User Fee Airports: Addition of Naples Municipal Airport, Naples, FL

    Science.gov (United States)

    2011-05-27

    ... Airports: Addition of Naples Municipal Airport, Naples, FL AGENCY: U.S. Customs and Border Protection... user fee airports to reflect the recent user fee airport designation for Naples Municipal Airport, in Naples, Florida. User fee airports are those airports which, while not qualifying for designation...

  18. Airports (National) - National Geospatial Data Asset (NGDA) Airports

    Data.gov (United States)

    Department of Transportation — The Airports database (NTAD 2015) is a geographic point database of aircraft landing facilities in the United States and U.S. Territories. Attribute data is provided...

  19. AirPort Extreme

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    AirPort Extreme是基于IEEE802.11g无线通讯协议的54Mbps的无线路由机站,它提供了比802.11b标准几乎快5倍以上的连接速率。AirPort Extreme基站可以同时为50台Mac和PC机用户服务。它支持从无线打印至带有USB接口或以太网接口的打印机,支持无线桥接技术,并同时提供了一整套强大的管理工具。除此之外,AirPort Extreme基站还配有一个内建防火墙,

  20. Airport Surveillance Radar : Model 7 -

    Data.gov (United States)

    Department of Transportation — The Airport Surveillance Radar Model 7 (ASR-7) is a short-range (60 nautical miles (nmi)) analog radar system used to detect and report the presence and location of...

  1. Airport Surveillance Radar : Model 8 -

    Data.gov (United States)

    Department of Transportation — The Airport Surveillance Radar Model 8 (ASR-8) is a short-range (60 nautical mile (nmi)), analog radar system used to detect and report the presence and location of...

  2. General aviation air traffic pattern safety analysis

    Science.gov (United States)

    Parker, L. C.

    1973-01-01

    A concept is described for evaluating the general aviation mid-air collision hazard in uncontrolled terminal airspace. Three-dimensional traffic pattern measurements were conducted at uncontrolled and controlled airports. Computer programs for data reduction, storage retrieval and statistical analysis have been developed. Initial general aviation air traffic pattern characteristics are presented. These preliminary results indicate that patterns are highly divergent from the expected standard pattern, and that pattern procedures observed can affect the ability of pilots to see and avoid each other.

  3. Characterizing the air quality in the vicinity of a fast-growing Asian airport

    Science.gov (United States)

    Wang, C.; Juang, J.

    2010-12-01

    Many studies have shown that air quality in the vicinity of major airports could be directly influenced by aircraft emissions, airport activities, and other forms of intense transportation in proximity to airports. There are two types of pollutants emitted within the confines of airports: one is directly emitted from aircraft engines, and the other is from ground support equipment (GSE). Such pollutants include aromatic hydrocarbon, ultrafine particles (UFP) , black carbon (BC) , nitrogen oxides, carbon monoxides, and sulfides and could immiately impact the air quality in areas downwind. Although the impact of airport emissions on surrounding communities has been studied in some major airports in North America and Europe, scant attention has been paid to airport pollution issues in Asia despite the surging growth of air travel and of airports. Commercial air traffic in Taiwan has been dramatically growing in the last two decades because of rapid economic growth and is expected to continue surging into the next decades due to increasing trade and travel with China and other countries. In this study, the air quality in the vicinity of Taiwan’s Taoyuan International Airport (TPE Airport) is analyzed to further characterize air quality in the region of a fast-growing Asian airport. Monitoring data from the Taiwanese Environmental Protection Administration (EPA) is used in the study to investigate long-term trends in air quality. The first step of this research is to analyze the data from six stations close to TPE Airport during the last ten years and to filter the attributes (wind field, geography, and so on) which could impact that air quality. Second, we characterize the relationship between data from different monitoring stations by using cluster analysis and then use the air pollution model (Industrial Source Complex-ISC3 and Cal-Puff) to identify why serious pollution events occur. Finally, we use model binds with a GIS system containing population-activity and

  4. Computer-Aided Air-Traffic Control In The Terminal Area

    Science.gov (United States)

    Erzberger, Heinz

    1995-01-01

    Developmental computer-aided system for automated management and control of arrival traffic at large airport includes three integrated subsystems. One subsystem, called Traffic Management Advisor, another subsystem, called Descent Advisor, and third subsystem, called Final Approach Spacing Tool. Data base that includes current wind measurements and mathematical models of performances of types of aircraft contributes to effective operation of system.

  5. Risk based decision support for new air traffic operations with reduced aircraft separation

    NARCIS (Netherlands)

    Speijker, L.J.P.

    2007-01-01

    With the steady increase in air traffic, the aviation system is under continuous pressure to increase aircraft handling capacity. Various new Air Traffic Management systems and flight procedures are proposed to increase airport capacity while maintaining the required level of safety. Newly proposed

  6. On Physical Aeroacoustics with Some Implications for Low-Noise Aircraft Design and Airport Operations

    Directory of Open Access Journals (Sweden)

    Luís M. B. C. Campos

    2015-02-01

    Full Text Available Air traffic is growing at a steady rate of 3% to 5% per year in most regions of the world, implying a doubling every 15–25 years. This requires major advances in aircraft noise reduction at airports, just not to increase the noise exposure due to the larger number of aircraft movements. In fact it can be expected, as a consequence of increased opposition to noise by near airport residents, that the overall noise exposure will have to be reduced, by bans, curfews, fines, and other means and limitations, unless significantly quieter aircraft operations are achieved. The ultimate solution is aircraft operations inaudible outside the airport perimeter, or noise levels below road traffic and other existing local noise sources. These substantial noise reductions cannot come at the expense of a degradation of cruise efficiency, that would affect not just economics and travel time, but would increase fuel consumption and emission of pollutants on a global scale. The paper reviews the: (i current knowledge of the aircraft noise sources; (ii the sound propagation in the atmosphere and ground effects that determine the noise annoyance of near-airport residents; (iii the noise mitigation measures that can be applied to current and future aircraft; (iv the prospects of evolutionary and novel aircraft designs towards quieter aircraft in the near term and eventually to operations inaudible outside the airport perimeter. The 20 figures and 1 diagram with their legends provide a visual summary of the review.

  7. 78 FR 38069 - Expansion of Global Entry to Additional Airports

    Science.gov (United States)

    2013-06-25

    ...); Philadelphia International Airport, Philadelphia, Pennsylvania (PHL); San Juan--Luis Munos Marin International Airport, San Juan, Puerto Rico (SAJ); Ft. Lauderdale Hollywood International Airport, Fort Lauderdale..., Texas (SAT); San Diego International Airport, San Diego, California (SAN); Tampa International...

  8. 19 CFR 122.13 - List of international airports.

    Science.gov (United States)

    2010-04-01

    ... International Airport Great Falls, Mont.—Great Falls International Airport Havre, Mont.—Havre City-County Airport Houlton, Maine—Houlton International Airport International Falls, Minn.—Falls...

  9. SARDA: An Integrated Concept for Airport Surface Operations Management

    Science.gov (United States)

    Gupta, Gautam; Hoang, Ty; Jung, Yoon Chul

    2013-01-01

    The Spot and Runway Departure Advisor (SARDA) is an integrated decision support tool for airlines and air traffic control tower enabling surface collaborative decision making (CDM) and departure metering in order to enhance efficiency of surface operations at congested airports. The presentation describes the concept and architecture of the SARDA as a CDM tool, and the results from a human-in-the-loop simulation of the tool conducted in 2012 at the FutureFlight Central, the tower simulation facility. Also, presented is the current activities and future plan for SARDA development. The presentation was given at the meeting with the FAA senior advisor of the Surface Operations Office.

  10. Airports and Airfields - AIRPORTS_PUBLIC_INDOT_IN: Public-Use Airports in Indiana (Indiana Department of Transportation, Point Shapefile)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — AIRPORTS_PUBLIC_INDOT_IN is a point shapefile that shows public-use airports in Indiana. It is derived from data provided by personnel of the Indiana Department of...

  11. Airport Surface Access and Mobile Apps

    Directory of Open Access Journals (Sweden)

    Luis Martin-Domingo

    2015-02-01

    Full Text Available Purpose: Airport Surface Access faces two main opposite issues: (1 cars, being the main transport mode, contribute to the increasing level of congestion and pollution of cities; and (2 simultaneously, parking fees are one important source of airports commercial revenue, creating a dilemma for airports when facing the problem. Following the recent trend of air passengers travelling with Smartphone (78% in 2013, the purpose of this paper is to monitor the adoption of mobile Applications (Apps by airports and to analyze if the information and functions provided in those Apps can help to overcome the above two issues. Design/methodology/approach: 31 iPhone App of some of the largest European airports were evaluated in the lab using the evaluation model of Destinations Mobile Applications (Scolari and Fernández-Cavia 2014 adapted for for the Airport Surface Access on Airport Apps Findings and Originality/value: The Apps evaluated provided a very limited functionality to help passengers to plan and book their trips to/from the airports on public transports and gave high priority to parking information and services. Originality/value: Although Airport Surface Access has been a widely researched, the originality of this paper is the analysis of airport mobile Apps as a potential tool for airports to deal with the surface airport access problems.Access, Airports, Mobile Internet, Commercial Revenues

  12. Traffic Control Under Complex Weather Conditions in Suining Airport

    Institute of Scientific and Technical Information of China (English)

    吕维峰

    2014-01-01

    Complex weather conditions is meaning thunderstorm freezing turbulence wind-shear low visibility weather affect the flight safety. When confronted with complex weather conditions,the controllers should know the weather condition and trend weather,and notify the aircraft under your control zone.The controllers provide the required services to the pilots,help the pilots to avoid the complex weather.In this paper, through different complex weathers under different control command,get the different methods of control.

  13. Safe and Efficient Dynamic Airportal Traffic and Resource Planner Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The Next Generation Air Transportation System (NextGen) strives to transform the existing National Airspace System (NAS) into the safest, most efficient system...

  14. 77 FR 4394 - Release of Airport Property: Orlando Executive Airport, Orlando, FL

    Science.gov (United States)

    2012-01-27

    ... Federal Aviation Administration Release of Airport Property: Orlando Executive Airport, Orlando, FL AGENCY... provides notice of intent to release certain airport properties 12.4 acres at the Orlando Executive Airport, Orlando, FL from the conditions, release certain properties from all terms, conditions, reservations...

  15. 14 CFR 121.445 - Pilot in command airport qualification: Special areas and airports.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Pilot in command airport qualification: Special areas and airports. 121.445 Section 121.445 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Qualifications § 121.445 Pilot in command airport qualification: Special areas and airports. (a)...

  16. Airport Ground Resource Planning Tool Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This effort undertakes the creation of an Airport Ground Resource Planning (AGRP) tool. Little or no automation is currently available to support airport ground...

  17. 75 FR 39091 - Airport Privatization Pilot Program

    Science.gov (United States)

    2010-07-07

    ... Program (62 FR 48693). A request for participation in the Pilot Program must be initiated by the filing of... Federal Aviation Administration Airport Privatization Pilot Program AGENCY: Federal Aviation... (SJU) preliminary application for participation in the airport privatization pilot program...

  18. Decision Support for Collaborative Airport Strategic Planning

    NARCIS (Netherlands)

    Wijnen, R.A.A.

    2013-01-01

    An airport’s operation and development impacts many stakeholders. Therefore, an airport should be treated as a socio-technical system. An airport operator and its stakeholders should strategically plan and develop the airport together. This dissertation describes the development of the HARMOS Decisi

  19. Planning, Management, and Economics of Airport Operation

    Science.gov (United States)

    Wiley, J.

    1972-01-01

    An overview of the role of the airport in the transportation complex and in the community is presented. The establishment of the airport including its requirements in regional planning and the operation of the airport as a social and economic force are discussed.

  20. 19 CFR 122.85 - Final airport.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Final airport. 122.85 Section 122.85 Customs... AIR COMMERCE REGULATIONS Procedures for Residue Cargo and Stopover Passengers § 122.85 Final airport. When an aircraft enters at the last domestic airport of discharge, the traveling general...

  1. 75 FR 39090 - Airport Privatization Pilot Program

    Science.gov (United States)

    2010-07-07

    ... procedures to be used in applications for exemption under the Airport Privatization Pilot Program (62 FR... Federal Aviation Administration Airport Privatization Pilot Program AGENCY: Federal Aviation... application for participation in the airport privatization pilot program received under 49 U.S.C....

  2. 75 FR 68018 - Airport Privatization Pilot Program

    Science.gov (United States)

    2010-11-04

    ... procedures to be used in applications for exemption under Airport Privatization Pilot Program (62 FR 48693... Federal Aviation Administration Airport Privatization Pilot Program AGENCY: Federal Aviation... the airport privatization pilot program received under 49 U.S.C. Section 47134. The...

  3. Implementing Solar Technologies at Airports

    Energy Technology Data Exchange (ETDEWEB)

    Kandt, A.; Romero, R.

    2014-07-01

    Federal agencies, such as the Department of Defense and Department of Homeland Security, as well as numerous private entities are actively pursuing the installation of solar technologies to help reduce fossil fuel energy use and associated emissions, meet sustainability goals, and create more robust or reliable operations. One potential approach identified for siting solar technologies is the installation of solar energy technologies at airports and airfields, which present a significant opportunity for hosting solar technologies due to large amounts of open land. This report focuses largely on the Federal Aviation Administration's (FAA's) policies toward siting solar technologies at airports.

  4. Wireless Channel Characterization: Modeling the 5 GHz Microwave Landing System Extension Band for Future Airport Surface Communications

    Science.gov (United States)

    Matolak, D. W.; Apaza, Rafael; Foore, Lawrence R.

    2006-01-01

    We describe a recently completed wideband wireless channel characterization project for the 5 GHz Microwave Landing System (MLS) extension band, for airport surface areas. This work included mobile measurements at large and small airports, and fixed point-to-point measurements. Mobile measurements were made via transmission from the air traffic control tower (ATCT), or from an airport field site (AFS), to a receiving ground vehicle on the airport surface. The point-to-point measurements were between ATCT and AFSs. Detailed statistical channel models were developed from all these measurements. Measured quantities include propagation path loss and power delay profiles, from which we obtain delay spreads, frequency domain correlation (coherence bandwidths), fading amplitude statistics, and channel parameter correlations. In this paper we review the project motivation, measurement coordination, and illustrate measurement results. Example channel modeling results for several propagation conditions are also provided, highlighting new findings.

  5. IMPACT OF AIRCRAFT TRAFFIC EMISSIONS ON OZONE FORMATION AT THE RIO DE JANEIRO URBAN AREA

    Directory of Open Access Journals (Sweden)

    Guimarães, C.S., Arbilla, G., Corrêa, S.M., Gatti, L.V.

    2007-01-01

    Full Text Available Data for speciated volatile organic compounds (VOC evaluated in Santos-Dumont Airport and Antonio Carlos Jobim International Airport in Rio de Janeiro, Brazil, are reported. VOC were evaluated by gas chromatography with flame ionization detection (GC – FID and mass spectrometry (GC – MS, following the U.S. EPA TO – 15 methodology. At Santos-Dumont Airport were quantified 1376 µg m-3 of VOCs 10 m from runway, 408 µg m-3 inside the airport building, and 116 µg m-3 outside the airport area. At the taxiway area of the International Airport a total of 190 µg m-3 of VOC were quantified. Toluene, the most abundant compound near the Santos-Dumont Airport runway, was obtained in a non-significative concentration outside the airport area. This fact suggests that this area is not noticeably impacted by air traffic. A computational model was developed using the OZIPR program and the SAPRC mechanism. Calculated ozone concentrations are higher than values for downtown area of Rio de Janeiro city. Simulated results show that, for the runway in Santos-Dumont Airport, olefins and aromatics contribute in 57% and 15%, respectively, to ozone formation, toluene being the major contributor. Cis-2-butene is the most reactive species regarding OH reaction.

  6. Wildlife Strike Risk Assessment in Several Italian Airports: Lessons from BRI and a New Methodology Implementation

    Science.gov (United States)

    Soldatini, Cecilia; Albores-Barajas, Yuri Vladimir; Lovato, Tomas; Andreon, Adriano; Torricelli, Patrizia; Montemaggiori, Alessandro; Corsa, Cosimo; Georgalas, Vyron

    2011-01-01

    The presence of wildlife in airport areas poses substantial hazards to aviation. Wildlife aircraft collisions (hereafter wildlife strikes) cause losses in terms of human lives and direct monetary losses for the aviation industry. In recent years, wildlife strikes have increased in parallel with air traffic increase and species habituation to anthropic areas. In this paper, we used an ecological approach to wildlife strike risk assessment to eight Italian international airports. The main achievement is a site-specific analysis that avoids flattening wildlife strike events on a large scale while maintaining comparable airport risk assessments. This second version of the Birdstrike Risk Index (BRI2) is a sensitive tool that provides different time scale results allowing appropriate management planning. The methodology applied has been developed in accordance with the Italian Civil Aviation Authority, which recognizes it as a national standard implemented in the advisory circular ENAC APT-01B. PMID:22194950

  7. Wildlife strike risk assessment in several Italian airports: lessons from BRI and a new methodology implementation.

    Directory of Open Access Journals (Sweden)

    Cecilia Soldatini

    Full Text Available The presence of wildlife in airport areas poses substantial hazards to aviation. Wildlife aircraft collisions (hereafter wildlife strikes cause losses in terms of human lives and direct monetary losses for the aviation industry. In recent years, wildlife strikes have increased in parallel with air traffic increase and species habituation to anthropic areas. In this paper, we used an ecological approach to wildlife strike risk assessment to eight Italian international airports. The main achievement is a site-specific analysis that avoids flattening wildlife strike events on a large scale while maintaining comparable airport risk assessments. This second version of the Birdstrike Risk Index (BRI2 is a sensitive tool that provides different time scale results allowing appropriate management planning. The methodology applied has been developed in accordance with the Italian Civil Aviation Authority, which recognizes it as a national standard implemented in the advisory circular ENAC APT-01B.

  8. Integrated Mode Choice, Small Aircraft Demand, and Airport Operations Model User's Guide

    Science.gov (United States)

    Yackovetsky, Robert E. (Technical Monitor); Dollyhigh, Samuel M.

    2004-01-01

    A mode choice model that generates on-demand air travel forecasts at a set of GA airports based on changes in economic characteristics, vehicle performance characteristics such as speed and cost, and demographic trends has been integrated with a model to generate itinerate aircraft operations by airplane category at a set of 3227 airports. Numerous intermediate outputs can be generated, such as the number of additional trips diverted from automobiles and schedule air by the improved performance and cost of on-demand air vehicles. The total number of transported passenger miles that are diverted is also available. From these results the number of new aircraft to service the increased demand can be calculated. Output from the models discussed is in the format to generate the origin and destination traffic flow between the 3227 airports based on solutions to a gravity model.

  9. Wildlife strike risk assessment in several Italian airports: lessons from BRI and a new methodology implementation.

    Science.gov (United States)

    Soldatini, Cecilia; Albores-Barajas, Yuri Vladimir; Lovato, Tomas; Andreon, Adriano; Torricelli, Patrizia; Montemaggiori, Alessandro; Corsa, Cosimo; Georgalas, Vyron

    2011-01-01

    The presence of wildlife in airport areas poses substantial hazards to aviation. Wildlife aircraft collisions (hereafter wildlife strikes) cause losses in terms of human lives and direct monetary losses for the aviation industry. In recent years, wildlife strikes have increased in parallel with air traffic increase and species habituation to anthropic areas. In this paper, we used an ecological approach to wildlife strike risk assessment to eight Italian international airports. The main achievement is a site-specific analysis that avoids flattening wildlife strike events on a large scale while maintaining comparable airport risk assessments. This second version of the Birdstrike Risk Index (BRI2) is a sensitive tool that provides different time scale results allowing appropriate management planning. The methodology applied has been developed in accordance with the Italian Civil Aviation Authority, which recognizes it as a national standard implemented in the advisory circular ENAC APT-01B.

  10. Role of Air Cargo and Road Feeder Services for Regional Airports – Case Studies from the Baltic Sea Region

    Directory of Open Access Journals (Sweden)

    Beifert Anatoli

    2016-06-01

    Full Text Available Although airports play an important role the global and European economies, according to the new guidelines of the EU Commission on the new state aid rules for a competitive aviation industry (EC, 2014, it will be more difficult for unprofitable airports, to get financial public subsidies in the future. The Commission noted that the majority of regional airports experience severe problems to cover their operative costs, resulting from among other things from overlapping of airports’ catchment areas. The main objective of the above mentioned measures is not to close the regional airports, but to motivate them to operate on cost efficient, profitable and more flexible basis, stating however that and that the most inefficient airports will be still closed. In order face upcoming challenges, the regional airports shall reconsider their future development plans. Traditionally, the airports including small and regional airports focus on the passenger traffic and thus, the possible benefits and opportunities of the air cargo market are totally underestimated or even completely ignored. Most regional airports in the Baltic Sea region act totally isolated and do not have a clear picture of the current situation on the international air cargo market today, its future perspectives and sustainable development plans remain basically hidden. There are some examples when trying to meet the market demand, the regional airports have made huge, but unfortunately unjustified investments, e.g. improving airport infrastructure, runways, etc. However, the airports’ infrastructural investments alone cannot fulfil the expected “remedy” role for the airports’ sustainability. This paper aims at investigating the positioning and the role of the regional airports in the current hub-and-spoke network, focusing on the relevance and potential of the air cargo sector for the regional airports development. The optional freight value proposition for the development of

  11. Health Impact Statement Schiphol Airport

    NARCIS (Netherlands)

    Staatsen BAM; Franssen EAM; Lebret E; CCM

    1994-01-01

    In this report an assessment has been made of the effects on public health caused by environmental pollution originating from activities around Schiphol airport. This investigation is part of an integral Environmental Impact Assessment that was legally required for the planned expansion of the airp

  12. Teaching at Logan International Airport

    Science.gov (United States)

    Schmidt, Steffen

    2005-01-01

    Although Terminal C at Logan airport does not look like a classroom, for about fifty minutes on this author's way back from Boston it was for him. Like many public spaces, Logan now has a very robust Wi-Fi wireless network and this enabled him to take advantage of a departure delay to "teach" his class. In 1970 when the author started…

  13. Aircraft engine exhaust emissions and other airport-related contributions to ambient air pollution: A review

    Science.gov (United States)

    Masiol, Mauro; Harrison, Roy M.

    2014-10-01

    Civil aviation is fast-growing (about +5% every year), mainly driven by the developing economies and globalisation. Its impact on the environment is heavily debated, particularly in relation to climate forcing attributed to emissions at cruising altitudes and the noise and the deterioration of air quality at ground-level due to airport operations. This latter environmental issue is of particular interest to the scientific community and policymakers, especially in relation to the breach of limit and target values for many air pollutants, mainly nitrogen oxides and particulate matter, near the busiest airports and the resulting consequences for public health. Despite the increased attention given to aircraft emissions at ground-level and air pollution in the vicinity of airports, many research gaps remain. Sources relevant to air quality include not only engine exhaust and non-exhaust emissions from aircraft, but also emissions from the units providing power to the aircraft on the ground, the traffic due to the airport ground service, maintenance work, heating facilities, fugitive vapours from refuelling operations, kitchens and restaurants for passengers and operators, intermodal transportation systems, and road traffic for transporting people and goods in and out to the airport. Many of these sources have received inadequate attention, despite their high potential for impact on air quality. This review aims to summarise the state-of-the-art research on aircraft and airport emissions and attempts to synthesise the results of studies that have addressed this issue. It also aims to describe the key characteristics of pollution, the impacts upon global and local air quality and to address the future potential of research by highlighting research needs.

  14. Building the Brain's "Air Traffic Control" System: How Early Experiences Shape the Development of Executive Function. Working Paper 11

    Science.gov (United States)

    National Scientific Council on the Developing Child, 2011

    2011-01-01

    Being able to focus, hold, and work with information in mind, filter distractions, and switch gears is like having an air traffic control system at a busy airport to manage the arrivals and departures of dozens of planes on multiple runways. In the brain, this air traffic control mechanism is called executive functioning, a group of skills that…

  15. Performance Evaluation of the Approaches and Algorithms for Hamburg Airport Operations

    Science.gov (United States)

    Zhu, Zhifan; Okuniek, Nikolai; Gerdes, Ingrid; Schier, Sebastian; Lee, Hanbong; Jung, Yoon

    2016-01-01

    The German Aerospace Center (DLR) and the National Aeronautics and Space Administration (NASA) have been independently developing and testing their own concepts and tools for airport surface traffic management. Although these concepts and tools have been tested individually for European and US airports, they have never been compared or analyzed side-by-side. This paper presents the collaborative research devoted to the evaluation and analysis of two different surface management concepts. Hamburg Airport was used as a common test bed airport for the study. First, two independent simulations using the same traffic scenario were conducted: one by the DLR team using the Controller Assistance for Departure Optimization (CADEO) and the Taxi Routing for Aircraft: Creation and Controlling (TRACC) in a real-time simulation environment, and one by the NASA team based on the Spot and Runway Departure Advisor (SARDA) in a fast-time simulation environment. A set of common performance metrics was defined. The simulation results showed that both approaches produced operational benefits in efficiency, such as reducing taxi times, while maintaining runway throughput. Both approaches generated the gate pushback schedule to meet the runway schedule, such that the runway utilization was maximized. The conflict-free taxi guidance by TRACC helped avoid taxi conflicts and reduced taxiing stops, but the taxi benefit needed be assessed together with runway throughput to analyze the overall performance objective.

  16. NASA Research on an Integrated Concept for Airport Surface Operations Management

    Science.gov (United States)

    Gupta, Gautam

    2012-01-01

    Surface operations at airports in the US are based on tactical operations, where departure aircraft primarily queue up and wait at the departure runways. There have been attempts to address the resulting inefficiencies with both strategic and tactical tools for metering departure aircraft. This presentation gives an overview of Spot And Runway Departure Advisor with Collaborative Decision Making (SARDA-CDM): an integrated strategic and tactical system for improving surface operations by metering departure aircraft. SARDA-CDM is the augmentation of ground and local controller advisories through sharing of flight movement and related operations information between airport operators, flight operators and air traffic control at the airport. The goal is to enhance the efficiency of airport surface operations by exchanging information between air traffic control and airline operators, while minimizing adverse effects on stakeholders and passengers. The presentation motivates the need for departure metering, and provides a brief background on the previous work on SARDA. Then, the concept of operations for SARDA-CDM is described. Then the preliminary results from testing the concept in a real-time automated simulation environment are described. Results indicate benefits such as reduction in taxiing delay and fuel consumption. Further, the preliminary implementation of SARDA-CDM seems robust for two minutes delay in gate push-back times.

  17. SOME ISSUES OF THE AIRPORT MANAGEMENT

    Directory of Open Access Journals (Sweden)

    Marian Ovidiu

    2012-07-01

    Full Text Available Internationally, the recommended standards for the operation and management of civil-use airports are provided by the International Civil Aviation Organization (ICAO. In most individual countries, airports are managed directly by the government, most often under the ministry of transport. In some countries, including EU countries, some airports are privately owned and operated, although, despite private ownership, they are still subject to much of the country’s regulations regarding aviation operations. The complex system of civil airports is made up of individual airport facilities of varying sizes, serving various purposes, all organized into plans of regional, national, and international levels. The range of rules, regulations, and policies, administered from varying levels of government, cover the full spectrum of airport and aviation system operations. Furthermore, a large number of professional and industry organizations play a large part in influencing the policies by which airport management must operate their facilities. By understanding where an airport manager’s airport falls within the civil aviation system, what rules must be followed, and what sources of support and assistance exist, the task of efficiently managing the complex system that is an airport, becomes highly facilitated.

  18. 76 FR 31823 - Technical Amendment to List of User Fee Airports: Addition of Dallas Love Field Municipal Airport...

    Science.gov (United States)

    2011-06-02

    ... Airports: Addition of Dallas Love Field Municipal Airport, Dallas, TX AGENCY: U.S. Customs and Border... revising the list of user fee airports to reflect the recent user fee airport designation for Dallas Love... of user fee status for Dallas Love Field Municipal Airport. This document updates the list of...

  19. Strategic development of commercial airports in Chongqing

    Institute of Scientific and Technical Information of China (English)

    夏煦

    2014-01-01

    Civil airports in China in the last 10 years have expanded substantially, and the construction of airports has come into a period planning to build airports into large transportation hub. This article combines the new trends of commercial real estate and the airport business, and explores various business marketing and management modes for operating airports with specific reference to the case of Chongqing. The main research results are as follows: First, the introduction of products and services markets should make more focus on the structure and habits of travelers. Second, developing new commercial projects through the BOT model and practicing resource replacement mode. Third, planning the terminal surrounding functions, the layout of successful business is the key factor of the rapid increase of airport non-aeronautical revenue.

  20. The impact of mobile marketing in airport

    Directory of Open Access Journals (Sweden)

    Lázaro Florido-Benítez

    2016-02-01

    Full Text Available Purpose: This paper seeks to analyze the effects of mobile marketing tool at airports and passengers. Design/methodology: This research approach consist of going through data files and bibliographical sources in search of information gathered by authors, institutions and organizations regarding our case study. Findings: Mobile marketing to increase passenger satisfaction and commercial income in the airports. Large airports are taking advantage of the consolidation of mobile devices in the 21st century to create applications for branding and communication. Originality/value: This paper is the first research that examines the impact of mobile marketing in airports. First, to evaluate the effects that mobile marketing is having over the levels of passenger satisfaction at airports. Second, to analyze the impact of mobile marketing on passengers behavior in the aerodrome; lastly, to study the effects of this tool on the perceived image of an airport.

  1. Scheduling of outbound luggage handling at airports

    DEFF Research Database (Denmark)

    Barth, Torben C.; Pisinger, David

    2012-01-01

    This article considers the outbound luggage handling problem at airports. The problem is to assign handling facilities to outbound flights and decide about the handling start time. This dynamic, near real-time assignment problem is part of the daily airport operations. Quality, efficiency......). Another solution method is a decomposition approach. The problem is divided into different subproblems and solved in iterative steps. The different solution approaches are tested on real world data from Frankfurt Airport....

  2. Travel Time Variability and Airport Accessibility

    OpenAIRE

    Koster, P.R.; Kroes, E.P.; Verhoef, E.T.

    2010-01-01

    This discussion paper resulted in a publication in Transportation Research Part B: Methodological (2011). Vol. 45(10), pages 1545-1559. This paper analyses the cost of access travel time variability for air travelers. Reliable access to airports is important since it is likely that the cost of missing a flight is high. First, the determinants of the preferred arrival times at airports are analyzed, including trip purpose, type of airport, flight characteristics, travel experience, type of che...

  3. Denver's airport of doom; the story behind the world's possibly most controversial airport

    NARCIS (Netherlands)

    Stolwijk, J.

    2014-01-01

    Big airport projects have often been prone to controversy. Schiphol’s Polderbaan project, Heathrow’s expansion, and the construction of Berlin’s new airport all suffered from political, financial or technical issues. However, Denver International Airport (often referred to as DIA) caused uproar in s

  4. 75 FR 54946 - Airport Improvement Program (AIP): Policy Regarding Access to Airports From Residential Property

    Science.gov (United States)

    2010-09-09

    ... Federal Register on October 13, 2009 (74 FR 52524). Comments were due on March 31, 2010. Comments on the... Federal Aviation Administration Airport Improvement Program (AIP): Policy Regarding Access to Airports... Federally obligated airport from an adjacent or nearby property, when that property is used as a...

  5. Source apportionment of wide range particle size spectra and black carbon collected at the airport of Venice (Italy)

    Science.gov (United States)

    Masiol, Mauro; Vu, Tuan V.; Beddows, David C. S.; Harrison, Roy M.

    2016-08-01

    Atmospheric particles are of high concern due to their toxic properties and effects on climate, and large airports are known as significant sources of particles. This study investigates the contribution of the Airport of Venice (Italy) to black carbon (BC), total particle number concentrations (PNC) and particle number size distributions (PNSD) over a large range (14 nm-20 μm). Continuous measurements were conducted between April and June 2014 at a site located 110 m from the main taxiway and 300 m from the runway. Results revealed no significantly elevated levels of BC and PNC, but exhibited characteristic diurnal profiles. PNSD were then analysed using both k-means cluster analysis and positive matrix factorization. Five clusters were extracted and identified as midday nucleation events, road traffic, aircraft, airport and nighttime pollution. Six factors were apportioned and identified as probable sources according to the size profiles, directional association, diurnal variation, road and airport traffic volumes and their relationships to micrometeorology and common air pollutants. Photochemical nucleation accounted for ∼44% of total number, followed by road + shipping traffic (26%). Airport-related emissions accounted for ∼20% of total PNC and showed a main mode at 80 nm and a second mode beyond the lower limit of the SMPS (pollution and local resuspension. An analysis of BC levels over different wind sectors revealed no especially significant contributions from specific directions associated with the main local sources, but a potentially significant role of diurnal dynamics of the mixing layer on BC levels. The approaches adopted in this study have identified and apportioned the main sources of particles and BC at an international airport located in area affected by a complex emission scenario. The results may underpin measures for improving local and regional air quality, and health impact assessment studies.

  6. Airport Logistics : Modeling and Optimizing the Turn-Around Process

    OpenAIRE

    Norin, Anna

    2008-01-01

    The focus of this licentiate thesis is air transportation and especially the logistics at an airport. The concept of airport logistics is investigated based on the following definition: Airport logistics is the planning and control of all resources and information that create a value for the customers utilizing the airport. As a part of the investigation, indicators for airport performance are considered. One of the most complex airport processes is the turn-around process. The turn-around is...

  7. FAA Air Traffic Control Operations Concepts. Volume 7. ATCT (Airport Traffic Control Towers) Tower Controllers

    Science.gov (United States)

    1989-04-21

    INFORM PILOT/ OPERATOR V V tF SIIUATION, RETLIJIEU TO NCRMAL j I1.2.4.7 RECEIVE REPORT OF V C [V I; P V 0 ARRl /VEHICLE I AI•NIRMAL I I Y ()o1/I AA/ AI’-8...OBSERVATIONS 2-16 FDA 2- 270- 01 a. At facilities where AT personnel take 2-16 weotner/ visibility observations, use the Federal Meteorological Handbook ...with the ATE Handbook 7110.65. Appendix C. Standard Operuting Practice (SOP) for the Transfer of ... (See 7210.3). FDA 2- 222-- 02 (1) The specialist

  8. A methodology for the valuation and selection of adaptable technology portfolios and its application to small and medium airports

    Science.gov (United States)

    Pinon, Olivia J.

    The increase in the types of airspace users (large aircraft, small and regional jets, very light jets, unmanned aerial vehicles, etc.), as well as the very limited number of future new airport development projects are some of the factors that will characterize the next decades in air transportation. These factors, associated with a persistent growth in air traffic will worsen the current gridlock situation experienced at some major airports. As airports are becoming the major capacity bottleneck to continued growth in air traffic, it is therefore primordial to make the most efficient use of the current, and very often, underutilized airport infrastructure. This research thus proposes to address the increase in air traffic demand and resulting capacity issues by considering the implementation of operational concepts and technologies at underutilized airports. However, there are many challenges associated with sustaining the development of this type of airports. First, the need to synchronize evolving technologies with airports’ needs and investment capabilities is paramount. Additionally, it was observed that the evolution of secondary airports, and their needs, is tightly linked to the environment in which they operate. In particular, sensitivity of airports to changes in the dynamics of their environment is important, therefore requiring that the factors that drive the need for technology acquisition be identified and characterized. Finally, the difficulty to evaluate risk and make financially viable decisions, particularly when investing in new technologies, cannot be ignored. This research provides a methodology that addresses these challenges and ensures the sustainability of airport capacity-enhancement investments in a continuously changing environment. In particular, it is articulated around the need to provide decision makers with the capability to valuate and select adaptable technology portfolios to ensure airport financial viability. Hence, the four

  9. Motorway closure near the airport for two nights

    CERN Multimedia

    2006-01-01

    In the framework of the current motorway maintenance work, road marking needs to be carried out on the airport section of the Geneva motorway bypass. Weather conditions permitting, this will be done between 8.30 p.m. and 5.00 a.m. on the nights of Wednesday 2 to Thursday 3 August and Thursday 3 to Friday 4 August. The work will be postponed in the event of bad weather, in which case the new date will be announced on Radio RSR and Radio Lac and on tel. 163. While the work is in progress the section concerned will be closed in both directions and traffic will be deviated. We should like to you in advance for your understanding. For further information, tel. 163 or www.autoroute-aeroport.ch Civil Engineering Department, DCTI, State of Geneva

  10. Aircraft Noise and Quality of Life around Frankfurt Airport

    Science.gov (United States)

    Schreckenberg, Dirk; Meis, Markus; Kahl, Cara; Peschel, Christin; Eikmann, Thomas

    2010-01-01

    In a survey of 2,312 residents living near Frankfurt Airport aircraft noise annoyance and disturbances as well as environmental (EQoL) and health-related quality of life (HQoL) were assessed and compared with data on exposure due to aircraft, road traffic, and railway noise. Results indicate higher noise annoyance than predicted from general exposure-response curves. Beside aircraft sound levels source-related attitudes were associated with reactions to aircraft noise. Furthermore, aircraft noise affected EQoL in general, although to a much smaller extent. HQoL was associated with aircraft noise annoyance, noise sensitivity and partly with aircraft noise exposure, in particular in the subgroup of multimorbid residents. The results suggest a recursive relationship between noise and health, yet this cannot be tested in cross-sectional studies. Longitudinal studies would be recommendable to get more insight in the causal paths underlying the noise-health relationship. PMID:20948931

  11. Aircraft Noise and Quality of Life around Frankfurt Airport

    Directory of Open Access Journals (Sweden)

    Thomas Eikmann

    2010-08-01

    Full Text Available In a survey of 2,312 residents living near Frankfurt Airport aircraft noise annoyance and disturbances as well as environmental (EQoL and health-related quality of life (HQoL were assessed and compared with data on exposure due to aircraft, road traffic, and railway noise. Results indicate higher noise annoyance than predicted from general exposure-response curves. Beside aircraft sound levels source-related attitudes were associated with reactions to aircraft noise. Furthermore, aircraft noise affected EQoL in general, although to a much smaller extent. HQoL was associated with aircraft noise annoyance, noise sensitivity and partly with aircraft noise exposure, in particular in the subgroup of multimorbid residents. The results suggest a recursive relationship between noise and health, yet this cannot be tested in cross-sectional studies. Longitudinal studies would be recommendable to get more insight in the causal paths underlying the noise-health relationship.

  12. Objective Lightning Probability Forecasts for East-Central Florida Airports

    Science.gov (United States)

    Crawford, Winfred C.

    2013-01-01

    The forecasters at the National Weather Service in Melbourne, FL, (NWS MLB) identified a need to make more accurate lightning forecasts to help alleviate delays due to thunderstorms in the vicinity of several commercial airports in central Florida at which they are responsible for issuing terminal aerodrome forecasts. Such forecasts would also provide safer ground operations around terminals, and would be of value to Center Weather Service Units serving air traffic controllers in Florida. To improve the forecast, the AMU was tasked to develop an objective lightning probability forecast tool for the airports using data from the National Lightning Detection Network (NLDN). The resulting forecast tool is similar to that developed by the AMU to support space launch operations at Kennedy Space Center (KSC) and Cape Canaveral Air Force Station (CCAFS) for use by the 45th Weather Squadron (45 WS) in previous tasks (Lambert and Wheeler 2005, Lambert 2007). The lightning probability forecasts are valid for the time periods and areas needed by the NWS MLB forecasters in the warm season months, defined in this task as May-September.

  13. Virtual queuing at airport security lanes

    NARCIS (Netherlands)

    Lange, de R.; Samoilovich, I.; Rhee, van der B.

    2013-01-01

    Airports continuously seek opportunities to reduce the security costs without negatively affecting passenger satisfaction. In this paper, we investigate the possibilities of implementing virtual queuing at airport security lanes, by offering some passengers a time window during which they can arrive

  14. 40 CFR 258.10 - Airport safety.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Airport safety. 258.10 Section 258.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES CRITERIA FOR MUNICIPAL SOLID WASTE LANDFILLS Location Restrictions § 258.10 Airport safety. (a) Owners or operators of...

  15. Modelling delay propagation within an airport network

    NARCIS (Netherlands)

    Pyrgiotis, N.; Malone, K.M.; Odoni, A.

    2013-01-01

    We describe an analytical queuing and network decomposition model developed to study the complex phenomenon of the propagation of delays within a large network of major airports. The Approximate Network Delays (AND) model computes the delays due to local congestion at individual airports and capture

  16. 14 CFR 398.3 - Specific airports.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Specific airports. 398.3 Section 398.3... STATEMENTS GUIDELINES FOR INDIVIDUAL DETERMINATIONS OF BASIC ESSENTIAL AIR SERVICE § 398.3 Specific airports. (a) At an eligible place, essential air service may be specified as service to a particular...

  17. Airports of the United States - Direct Download

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This map layer includes airports in the United States, Puerto Rico and the U.S. Virgin Islands. The data were derived from an extract of the Public-Use Airports...

  18. 32 CFR 644.423 - Airport development.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 4 2010-07-01 2010-07-01 true Airport development. 644.423 Section 644.423... development. (a) Authority. 49 U.S.C. 1723 provides that (a) . . . whenever the Secretary of Transportation... carrying out a project for airport development under this subchapter, or for the operation of any...

  19. Tighter Airports,Safer Games

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    China’s aviation authorities have beefed up security measures in order to guarantee an incident-free Olympics New security check procedures issued by China’s civil aviation authorities in the wake of a foiled terrorist attack will make Chinese airports and air travel safer. The regulations,which came into force on March 14,banned liquid products,including drinks,and some cosmetics and medicines from carry-on luggage on domestic flights. The day before the cabin ban,the General Administration of Civil Aviation of China (CAAC) had announced it was stepping up safety checks ahead of the Olympic Games.

  20. Distributed Air Traffic Control : A Human Safety Perspective

    CERN Document Server

    Nikumbh, Sarvesh; Vartak, Rahul

    2011-01-01

    The issues in air traffic control have so far been addressed with the intent to improve resource utilization and achieve an optimized solution with respect to fuel comsumption of aircrafts, efficient usage of the available airspace with minimal congestion related losses under various dynamic constraints. So the focus has almost always been more on smarter management of traffic to increase profits while human safety, though achieved in the process, we believe, has remained less seriously attended. This has become all the more important given that we have overburdened and overstressed air traffic controllers managing hundreds of airports and thousands of aircrafts per day. We propose a multiagent system based distributed approach to handle air traffic ensuring complete human (passenger) safety without removing any humans (ground controllers) from the loop thereby also retaining the earlier advantages in the new solution. The detailed design of the agent system, which will be easily interfacable with the existin...

  1. The employment of a spoken language computer applied to an air traffic control task.

    Science.gov (United States)

    Laveson, J. I.; Silver, C. A.

    1972-01-01

    Assessment of the merits of a limited spoken language (56 words) computer in a simulated air traffic control (ATC) task. An airport zone approximately 60 miles in diameter with a traffic flow simulation ranging from single-engine to commercial jet aircraft provided the workload for the controllers. This research determined that, under the circumstances of the experiments carried out, the use of a spoken-language computer would not improve the controller performance.

  2. Siting Solar Photovoltaics at Airports: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Kandt, A.; Romero, R.

    2014-06-01

    Airports present a significant opportunity for hosting solar technologies due to their open land; based on a 2010 Federal Aviation Administration study, the US Department of Agriculture, and the US Fish and Wildlife Service, there's potential for 116,704 MW of solar photovoltaics (PV) on idle lands at US airports. PV has a low profile and likely low to no impact on flight operations. This paper outlines guidance for implementing solar technologies at airports and airfields, focusing largely on the Federal Aviation Administration's policies. The paper also details best practices for siting solar at airports, provides information on the Solar Glare Hazard Analysis Tool, and highlights a case study example where solar has been installed at an airport.

  3. Airport Delay and Improvement Study, John F. Kennedy International Airport and LaGuardia Airport.

    Science.gov (United States)

    1981-10-01

    LaGuardia Airport fb Current System Operation Aircraft delat has been ar integral part of the operationr or out presen s %tem of major huh airpnort,. Ru ri...iuardia %%henl Kcnnecd% is usingt thre Ruiiwa% 131 11 S. I it, pioposal riral. with the departure delav increasing h,, 3.5 minutes. Oserall. a delat ...genieral iatrioii actIisits. adds 5.7󈧥 additiontal I%TF;RIM AK k ORTErX %S rFEM mntes o t delat , at a Co st of S95.5-8 annual[%. Because of he os

  4. Sampling for global epidemic models and the topology of an international airport network.

    Directory of Open Access Journals (Sweden)

    Georgiy Bobashev

    Full Text Available Mathematical models that describe the global spread of infectious diseases such as influenza, severe acute respiratory syndrome (SARS, and tuberculosis (TB often consider a sample of international airports as a network supporting disease spread. However, there is no consensus on how many cities should be selected or on how to select those cities. Using airport flight data that commercial airlines reported to the Official Airline Guide (OAG in 2000, we have examined the network characteristics of network samples obtained under different selection rules. In addition, we have examined different size samples based on largest flight volume and largest metropolitan populations. We have shown that although the bias in network characteristics increases with the reduction of the sample size, a relatively small number of areas that includes the largest airports, the largest cities, the most-connected cities, and the most central cities is enough to describe the dynamics of the global spread of influenza. The analysis suggests that a relatively small number of cities (around 200 or 300 out of almost 3000 can capture enough network information to adequately describe the global spread of a disease such as influenza. Weak traffic flows between small airports can contribute to noise and mask other means of spread such as the ground transportation.

  5. Real-time assessment of fog-related crashes using airport weather data: a feasibility analysis.

    Science.gov (United States)

    Ahmed, Mohamed M; Abdel-Aty, Mohamed; Lee, Jaeyoung; Yu, Rongjie

    2014-11-01

    The effect of reduction of visibility on crash occurrence has recently been a major concern. Although visibility detection systems can help to mitigate the increased hazard of limited-visibility, such systems are not widely implemented and many locations with no systems are experiencing considerable number of fatal crashes due to reduction in visibility caused by fog and inclement weather. On the other hand, airports' weather stations continuously monitor all climate parameters in real-time, and the gathered data may be utilized to mitigate the increased risk for the adjacent roadways. This study aims to examine the viability of using airport weather information in real-time road crash risk assessment in locations with recurrent fog problems. Bayesian logistic regression was utilized to link six years (2005-2010) of historical crash data to real-time weather information collected from eight airports in the State of Florida, roadway characteristics and aggregate traffic parameters. The results from this research indicate that real-time weather data collected from adjacent airports are good predictors to assess increased risk on highways.

  6. 77 FR 22376 - Airport Improvement Program (AIP) Grant Assurances

    Science.gov (United States)

    2012-04-13

    .... Airport Revenues. a. All revenues generated by the airport and any local taxes on aviation fuel... airport, local taxes on aviation fuel) shall not apply. (2) If the Secretary approves the sale of a... Federal Aviation Administration Airport Improvement Program (AIP) Grant Assurances AGENCY:...

  7. 19 CFR 122.11 - Designation as international airport.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Designation as international airport. 122.11...; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Classes of Airports § 122.11 Designation as international airport. (a) Procedure. International airports, as defined in § 122.1(e), will be designated after...

  8. 19 CFR 122.14 - Landing rights airport.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Landing rights airport. 122.14 Section 122.14... TREASURY AIR COMMERCE REGULATIONS Classes of Airports § 122.14 Landing rights airport. (a) Permission to land. Permission to land at a landing rights airport may be given as follows: (1) Scheduled flight....

  9. 14 CFR 152.325 - Financial status report: Airport planning.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Financial status report: Airport planning... agency conducting a project for airport system planning shall submit a financial status report on a form... TRANSPORTATION (CONTINUED) AIRPORTS AIRPORT AID PROGRAM Accounting and Reporting Requirements § 152.325...

  10. 75 FR 9017 - Orders Limiting Scheduled Operations at John F. Kennedy International Airport, LaGuardia Airport...

    Science.gov (United States)

    2010-02-26

    ... CFR Sec. 93.227 (DCA); 74 FR 51648 (Oct. 7, 2009) (EWR); 74 FR 51650 (Oct. 7, 2009) (JFK); 74 FR 51653... Airport, LaGuardia Airport and Newark Liberty International Airport; High Density Rule at Reagan National Airport AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of limited waiver of the...

  11. Jamitons: Phantom Traffic Jams

    Science.gov (United States)

    Kowszun, Jorj

    2013-01-01

    Traffic on motorways can slow down for no apparent reason. Sudden changes in speed by one or two drivers can create a chain reaction that causes a traffic jam for the vehicles that are following. This kind of phantom traffic jam is called a "jamiton" and the article discusses some of the ways in which traffic engineers produce…

  12. Dynamic capabilities in airport management : A study of Jönköping Airport

    OpenAIRE

    Tollén, Erik; Frånlund, Olof

    2010-01-01

    Background: The deregulation of the airline and airport sectors has introduced airport managers to free market competition. Purpose: The purpose of this thesis is to identify dynamic capabilities in a regional airport, examine which of the predominant views they correlate to and whether dynamic capabilities concern different levels of strategy. Method: This study uses a qualitative method. Data are collected through a documentary review and interview. The documentary review concerns the fea...

  13. The Development of Jomo Kenyatta International Airport as a Regional Aviation Hub

    Science.gov (United States)

    Irandu, Evaristus M.; Rhoades, Dawna L.

    2006-01-01

    Air transportation plays an important role in the social and economic development of the global system and the countries that seek to participate in it. As Africa seeks to take its place in the global economy, it is increasingly looking to aviation as the primary means of connecting its people and goods with the world. It has been suggested that Africa as a continent needs to move toward a system of hubs to optimize its scarce resources. Jomo Kenyatta International Airport in Nairobi, Kenya, is one of the airports in the eastern region of Africa that is seeking to fill this role. This paper discusses the prospects for success and the challenges that it will need to overcome, including projections through 2020 for the growth in passenger and cargo traffic.

  14. Optimization of Business processes in Airport Services Company in Macedonia using the TQM Philosophy

    Directory of Open Access Journals (Sweden)

    Elizabeta Mitreva

    2016-11-01

    Full Text Available This study is to show a full diagnostic to some of the business processes in the company for airport services in Macedonia was made. The methodology of TQM (Total Quality Management system was applied in the company, especially in the sector for de-icing and protection against frost on aircrafts. With the implementation of this system, an optimal solution was found for uninterrupted operation in the airport traffic. In this way there was a change in the company paradigm – do not work hard but smart, with a constant improvement of processes, while taking into account the needs and desires of customers and profit. This research shows that other methods and techniques were applied such as Pareto Diagram, Ishikawa approach, Checklist, Map of trends, all in order to identify problems and find an optimal solution.

  15. Preliminary Benefits Assessment of Traffic Aware Strategic Aircrew Requests (TASAR)

    Science.gov (United States)

    Henderson, Jeff; Idris, Husni; Wing, David J.

    2012-01-01

    While en route, aircrews submit trajectory change requests to air traffic control (ATC) to better meet their objectives including reduced delays, reduced fuel burn, and passenger comfort. Aircrew requests are currently made with limited to no information on surrounding traffic. Consequently, these requests are uninformed about a key ATC objective, ensuring traffic separation, and therefore less likely to be accepted than requests informed by surrounding traffic and that avoids creating conflicts. This paper studies the benefits of providing aircrews with on-board decision support to generate optimized trajectory requests that are probed and cleared of known separation violations prior to issuing the request to ATC. These informed requests are referred to as traffic aware strategic aircrew requests (TASAR) and leverage traffic surveillance information available through Automatic Dependent Surveillance Broadcast (ADS-B) In capability. Preliminary fast-time simulation results show increased benefits with longer stage lengths since beneficial trajectory changes can be applied over a longer distance. Also, larger benefits were experienced between large hub airports as compared to other airport sizes. On average, an aircraft equipped with TASAR reduced its travel time by about one to four minutes per operation and fuel burn by about 50 to 550 lbs per operation depending on the objective of the aircrew (time, fuel, or weighted combination of time and fuel), class of airspace user, and aircraft type. These preliminary results are based on analysis of approximately one week of traffic in July 2012 and additional analysis is planned on a larger data set to confirm these initial findings.

  16. TRANSIMS traffic flow characteristics

    CERN Document Server

    Nagel, K; Pieck, M; Donnelly, R; Barrett, C L; Nagel, Kai; Stretz, Paula; Pieck, Martin; Donnelly, Rick; Barrett, Christopher L.

    1997-01-01

    Knowledge of fundamental traffic flow characteristics of traffic simulation models is an essential requirement when using these models for the planning, design, and operation of transportation systems. In this paper we discuss the following: a description of how features relevant to traffic flow are currently under implementation in the TRANSIMS microsimulation, a proposition for standardized traffic flow tests for traffic simulation models, and the results of these tests for two different versions of the TRANSIMS microsimulation.

  17. Future Airportal Surveillance and Prediction Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Recent advances in airport surface surveillance and other sensor, automation, and data sharing technologies now allow the consideration of a significant change in...

  18. Airports and Airfields, Published in unknown, SWGRC.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Airports and Airfields dataset as of unknown. Data by this publisher are often provided in Geographic coordinate system; in a Not Sure projection; The extent...

  19. Airport Gate Assignment: New Model and Implementation

    CERN Document Server

    Li, Chendong

    2008-01-01

    Airport gate assignment is of great importance in airport operations. In this paper, we study the Airport Gate Assignment Problem (AGAP), propose a new model and implement the model with Optimization Programming language (OPL). With the objective to minimize the number of conflicts of any two adjacent aircrafts assigned to the same gate, we build a mathematical model with logical constraints and the binary constraints, which can provide an efficient evaluation criterion for the Airlines to estimate the current gate assignment. To illustrate the feasibility of the model we construct experiments with the data obtained from Continental Airlines, Houston Gorge Bush Intercontinental Airport IAH, which indicate that our model is both energetic and effective. Moreover, we interpret experimental results, which further demonstrate that our proposed model can provide a powerful tool for airline companies to estimate the efficiency of their current work of gate assignment.

  20. CERN lands a slot at Geneva Airport

    CERN Multimedia

    2002-01-01

    From left to right:Carlo Lamprecht, Luciano Maiani and Jean-Pierre Jobin. When you step off your plane at Geneva Airport there's a good chance you'll come face-to-face with an advertising hoarding bearing the message 'CERN, the world's largest particle physics research laboratory, where the World Wide Web was born...five minutes from here'. This may be obvious to you, but it certainly isn't to the majority of the 7 million travellers who pass through the gates of Geneva Airport every year. On the initiative of the Chairman of its Board of Directors, State Councillor Carlo Lamprecht, Geneva International Airport has therefore come up with the idea of highlighting CERN's presence by giving the Laboratory its own hoarding. The hoarding was inaugurated on 24 May by Carlo Lamprecht, Airport Director Jean-Pierre Jobin and CERN Director-General Luciano Maiani.

  1. Airports and Airfields, To provide airports recognized by LA DOTD as "official" airports, Published in 2007, 1:24000 (1in=2000ft) scale, Louisiana State University.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Airports and Airfields dataset, published at 1:24000 (1in=2000ft) scale as of 2007. It is described as 'To provide airports recognized by LA DOTD as "official"...

  2. THE REMOTE AND MOBILE AIR TRAFFIC CONTROL TOWER AND ITS POSSIBLE APPLICATION TO THE OPERATIONAL AREA

    Directory of Open Access Journals (Sweden)

    Tímea VAS

    2014-10-01

    Full Text Available The concept of remote and mobile Air Traffic Control Tower (ATC TWR and its development has started in Europe, Australia and also in the USA, in order to improve the efficiency of Air Traffic Management (ATM systems in terms of air transportation safety. These new technologies are applicable in many countries in peace time, but on mobility reasons these are promoted to achieve commitments in the operational area. This article describes the devices and range of equipment of mobile and remote tower, and their specifications, which can even serve a medium sized airport, furthermore examines, whether how can those provide the air traffic services at an operational airfield.

  3. Energy Research in Airports: A Review

    Directory of Open Access Journals (Sweden)

    Sergio Ortega Alba

    2016-05-01

    Full Text Available The main function of an airport is to provide access to air transport both for passengers and cargo. The number of air operations over the past 20 years has increased rapidly, and this has led to a rise in the energy needs of airports to satisfy this demand. As a consequence, the cost of energy supply for airport managers has escalated. At the same time, global energy consumption has soared due to the needs of emerging countries like China and India, with the consequent environmental impact. This complex scenario of environmental and economic factors has made airport managers become aware of the need to reduce energy consumption as well as a more efficient use of it. The aim of this article is to analyze the main behaviors and energy trends at airports in more recent research, starting with the description of the main energy sources and consumers, the application of energy conservation and energy efficiency measures, the establishment of energy indicators and benchmarking between airports, as well as energy modeling and simulation.

  4. Airport Merchandising Using Micro Services Architecture

    Directory of Open Access Journals (Sweden)

    Hari Bhaskar Sankaranarayanan

    2016-06-01

    Full Text Available Airport offers an ecosystem where passengers, airlines, airport, and merchants meet under one roof during travel. During the journey, there is a good amount of time spent by passengers on waiting or transit before boarding the flight. Passengers look for spending that time by shopping, dining, and entertainment. Airport merchants and airlines look for merchandising opportunities to acquire new customers, up-sell, and cross-sell their products and services. Highly personalized merchandising offers can be generated on the fly by combining contextual information from passenger profile, likes and interests, merchant offers, and location specific events, seasons, and festivals. To achieve this, a strong airport merchandising platform is needed. The goal of the airport merchandising platform is to exchange information in a seamless manner across travel systems. The platform is designed on microservices design principles that use information from airlines, airport, social media, and merchant systems. Microservices can promote quick development, deployment, and realization of services. Microservices also improve the time to market capabilities. Mobile and desktop applications consume them to offer a personalized shopping experience to the passengers.

  5. STRATEGIC MARKET POSITION OF THE GDANSK AIRPORT

    Directory of Open Access Journals (Sweden)

    Henryk Ćwikliński

    2015-09-01

    Full Text Available Airports are a key link of the air transport infrastructure, which is a part of the whole transportation system. Their potential is determined by a network of airlines relations and affects the long-term, strategic position in the market of aviation services. The most possible scenario of the macro-environment of the Gdansk Airport has a relatively high predictability and generally positive influencing on the potential for development in the next years. Only international and demographic areas can constitute a barrier to achieving the strategic objectives. Gdansk Airport takes permanently the third position on the Polish market. Strategic gap analysis leads to the conclusion that, compared to its main competitors Airport Gdansk has a gap of compliance trends, but in relation to smaller regional airports excess gap. GDN services are located in the square "Star" in the BCG matrix. This airport has prepared an investment program till 2035. The dynamics of the projected increase in the number of passengers and air operations in Gdansk is generally slightly higher than the growth nationwide forecasts. The strategic challenge for next years will be to strengthen the status of the GDN as a Polish aviation gateway to Scandinavia.

  6. 77 FR 30350 - Airport Improvement Program (AIP) Use of Mineral Revenue at Certain Airports

    Science.gov (United States)

    2012-05-22

    ... modifications to this assurance at 77 FR 22376. Specifically, paragraph (a)(3) of Sponsor Assurance 25 permits... Federal Aviation Administration Airport Improvement Program (AIP) Use of Mineral Revenue at Certain Airports AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of guidance; opportunity...

  7. Airport Noise Tech Challenge Overview

    Science.gov (United States)

    Bridges, James

    2011-01-01

    The Supersonics Project, operating under NASA Aeronautics Mission Directorate#s Fundamental Aero Program, has been organized around the Technical Challenges that have historically precluded commercial supersonic flight. One of these Challenges is making aircraft that are capable of such high aerodynamic performance quiet enough around airports that they will not be objectionable. It is recognized that a successful civilian supersonic aircraft will be a system where many new technologies will come together, and for this to happen not only will new low noise propulsion concepts be required, but new engineering tools that predict the noise of the aircraft as these technologies are combined and compromised with the rest of the aircraft design. These are the two main objectives of the Airport Noise Tech Challenge. " ! As a Project in the Fundamental Aero Program, we work at a relatively low level of technology readiness. However, we have high level milestones which force us to integrate our efforts to impact systems-level activities. To keep the low-level work tied to delivering engineering tools and low-noise concepts, we have structured our milestones around development of the concepts and organized our activities around developing and applying our engineering tools to these concepts. The final deliverables in these milestones are noise prediction modules validated against the best embodiment of each concept. These will then be used in cross-disciplinary exercises to demonstrate the viability of aircraft designs to meet all the Technical Challenges. Some of the concepts being developed are shown: Fan Flow Diverters, Multi-jet Shielding, High-Aspect Ratio Embedded Nozzles, Plasma Actuated Instability Manipulation, Highly Variable Cycle Mixer- Ejectors, and Inverted Velocity Profiles. These concepts are being developed for reduced jet noise along with the design tools which describe how they perform when used in various aircraft configurations. Several key upcoming

  8. Interaction Between Strategic and Local Traffic Flow Controls

    Science.gov (United States)

    Grabbe, Son; Sridhar, Banavar; Mukherjee, Avijit; Morando, Alexander

    2010-01-01

    The loosely coordinated sets of traffic flow management initiatives that are operationally implemented at the national- and local-levels have the potential to under, over, and inconsistently control flights. This study is designed to explore these interactions through fast-time simulations with an emphasis on identifying inequitable situations in which flights receive multiple uncoordinated delays. Two operationally derived scenarios were considered in which flights arriving into the Dallas/Fort Worth International Airport were first controlled at the national-level, either with a Ground Delay Program or a playbook reroute. These flights were subsequently controlled at the local level. The Traffic Management Advisor assigned them arrival scheduling delays. For the Ground Delay Program scenarios, between 51% and 53% of all arrivals experience both pre-departure delays from the Ground Delay Program and arrival scheduling delays from the Traffic Management Advisor. Of the subset of flights that received multiple delays, between 5.7% and 6.4% of the internal departures were first assigned a pre-departure delay by the Ground Delay Program, followed by a second pre-departure delay as a result of the arrival scheduling. For the playbook reroute scenario, Dallas/Fort Worth International Airport arrivals were first assigned pre-departure reroutes based on the MW_2_DALLAS playbook plan, and were subsequently assigned arrival scheduling delays by the Traffic Management Advisor. Since the airport was operating well below capacity when the playbook reroute was in effect, only 7% of the arrivals were observed to receive both rerouting and arrival scheduling delays. Findings from these initial experiments confirm field observations that Ground Delay Programs operated in conjunction with arrival scheduling can result in inequitable situations in which flights receive multiple uncoordinated delays.

  9. Design Principles and Algorithms for Air Traffic Arrival Scheduling

    Science.gov (United States)

    Erzberger, Heinz; Itoh, Eri

    2014-01-01

    This report presents design principles and algorithms for building a real-time scheduler of arrival aircraft based on a first-come-first-served (FCFS) scheduling protocol. The algorithms provide the conceptual and computational foundation for the Traffic Management Advisor (TMA) of the Center/terminal radar approach control facilities (TRACON) automation system, which comprises a set of decision support tools for managing arrival traffic at major airports in the United States. The primary objective of the scheduler is to assign arrival aircraft to a favorable landing runway and schedule them to land at times that minimize delays. A further objective of the scheduler is to allocate delays between high-altitude airspace far away from the airport and low-altitude airspace near the airport. A method of delay allocation is described that minimizes the average operating cost in the presence of errors in controlling aircraft to a specified landing time. This report is a revision of an earlier paper first presented as part of an Advisory Group for Aerospace Research and Development (AGARD) lecture series in September 1995. The authors, during vigorous discussions over the details of this paper, felt it was important to the air-trafficmanagement (ATM) community to revise and extend the original 1995 paper, providing more detail and clarity and thereby allowing future researchers to understand this foundational work as the basis for the TMA's scheduling algorithms.

  10. Subjective safety in traffic.

    NARCIS (Netherlands)

    2012-01-01

    The term ‘subjective safety in traffic’ refers to people feeling unsafe in traffic or, more generally, to anxiety regarding being unsafe in traffic for oneself and/or others. Subjective safety in traffic can lead to road users limiting their mobility and social activities, which is one of the reason

  11. Yeager Airport Hydrogen Vehicle Test Project

    Energy Technology Data Exchange (ETDEWEB)

    Davis, Williams [West Virginia University Research Corporation, Morgantown, WV (United States)

    2015-10-01

    The scope of this project was changed during the course of the project. Phase I of the project was designed to have the National Alternative Fuels Training Consortium (NAFTC), together with its partners, manage the Hydrogen Vehicle Test Project at the Yeager Airport in conjunction with the Central West Virginia Regional Airport Authority (CWVRAA) in coordination with the United States Department of Energy National Energy Technology Laboratory (U.S. DOE NETL). This program would allow testing and evaluation of the use of hydrogen vehicles in the state of West Virginia utilizing the hydrogen fueling station at Yeager Airport. The NAFTC and CWVRAA to raise awareness and foster a greater understanding of hydrogen fuel and hydrogen-powered vehicles through a targeted utilization and outreach and education effort. After initial implementation of the project, the project added, determine the source(s) of supply for hydrogen powered vehicles that could be used for the testing. After completion of this, testing was begun at Yeager Airport. During the course of the project, the station at Yeager Airport was closed and moved to Morgantown and the West Virginia University Research Corporation. The vehicles were then moved to Morgantown and a vehicle owned by the CWVRAA was purchased to complete the project at the new location. Because of a number of issues detailed in the report for DE-FE0002994 and in this report, this project did not get to evaluate the effectiveness of the vehicles as planned.

  12. Location of airports - selected quantitative methods

    Directory of Open Access Journals (Sweden)

    Agnieszka Merkisz-Guranowska

    2016-09-01

    Full Text Available Background: The role of air transport in  the economic development of a country and its regions cannot be overestimated. The decision concerning an airport's location must be in line with the expectations of all the stakeholders involved. This article deals with the issues related to the choice of  sites where airports should be located. Methods: Two main quantitative approaches related to the issue of airport location are presented in this article, i.e. the question of optimizing such a choice and the issue of selecting the location from a predefined set. The former involves mathematical programming and formulating the problem as an optimization task, the latter, however, involves ranking the possible variations. Due to various methodological backgrounds, the authors present the advantages and disadvantages of both approaches and point to the one which currently has its own practical application. Results: Based on real-life examples, the authors present a multi-stage procedure, which renders it possible to solve the problem of airport location. Conclusions: Based on the overview of literature of the subject, the authors point to three types of approach to the issue of airport location which could enable further development of currently applied methods.

  13. Northern New Mexico regional airport market feasibility

    Energy Technology Data Exchange (ETDEWEB)

    Drake, R.H.; Williams, D.S.

    1998-06-01

    This report is about the market for airline travel in northern New Mexico. Interest in developing a northern New Mexico regional airport has periodically surfaced for a number of years. The New Mexico State Legislature passed a memorial during the 1998 Second Session calling for the conduct of a study to determine the feasibility of building a new regional airport in NNM. This report is a study of the passenger market feasibility of such an airport. In addition to commercial passenger market feasibility, there are other feasibility issues dealing with siting, environmental impact, noise, economic impact, intermodal transportation integration, region-wide transportation services, airport engineering requirements, and others. These other feasibility issues are not analyzed in any depth in this report although none were discovered to be show-stoppers as a by-product of the authors doing research on the passenger market itself. Preceding the need for a detailed study of these other issues is the determination of the basic market need for an airport with regular commercial airline service in the first place. This report is restricted to an in-depth look at the market for commercial passenger air service in NNM. 20 figs., 8 tabs.

  14. ICAO's anti-SARS airport activities.

    Science.gov (United States)

    Finkelstein, Silvio; Curdt-Christiansen, Claus M

    2003-11-01

    To prevent SARS from spreading through air travel and in order to rebuild the confidence of the traveling public in the safety of air travel, ICAO has set up an "Anti-SARS Airport Evaluation Project." The first phase of this project was to develop a set of protective measures for international airports in affected areas to adopt and implement and then to send out, on the request of Contracting States, a team of inspectors to evaluate and assess airports and issue a "statement of evaluation" that the airport inspected complies with the ICAO anti-SARS protective measures. In cooperation with the World Health Organization (WHO), the first part of phase 1 was completed in early June this year, and the second part of phase 1 followed soon after. By mid-July, five international airports in Southeast Asia had been inspected and found to be in full compliance with the ICAO anti-SARS protective measures. The success of this ICAO project is believed to have contributed significantly to the recovery of international air travel and related industries now taking place. Phase 2 of the project is now being developed. It is aimed at preventing a resurgence of SARS, but it also contains elements to make the methodology developed applicable to future outbreaks of any other communicable disease in which the mode of transmission could involve aviation and/or the need to prevent the spread of the disease by air travel.

  15. Microscopic Analysis and Modeling of Airport Surface Sequencing Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Although a number of airportal surface models exist and have been successfully used for analysis of airportal operations, only recently has it become possible to...

  16. Lidar Wind Profiler for the NextGen Airportal Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The development of a standoff sensor that can measure 3D components of wind velocity in the vicinity of an airport has the potential to improve airport throughput,...

  17. Aspect Of Reliability In Airport Business Continuity Management

    Directory of Open Access Journals (Sweden)

    Kozłowski Michał

    2015-11-01

    Full Text Available The paper presents the issue of ensuring the continuity of the operation at the airport. Requirements and objectives relating to business continuity management have been defined in accordance with ISO 22301 international standard. Conducted a study of reliability issues operation of the airport. Defined the function of the reliability and operational readiness of the airport. Presented the concept of using function of operational readiness in the risk assessment for the continuity of the airport.

  18. Guidelines to improve airport preparedness against chemical and biological terrorism.

    Energy Technology Data Exchange (ETDEWEB)

    Edwards, Donna M.; Price, Phillip N. (Lawrence Berkeley National Laboratory, Berkeley, CA); Gordon, Susanna P.; Gadgil, Ashok (Lawrence Berkeley National Laboratory, Berkeley, CA)

    2005-05-01

    Guidelines to Improve Airport Preparedness Against Chemical and Biological Terrorism is a 100-page document that makes concrete recommendations on improving security and assessing vulnerable areas and helps its readers understand the nature of chemical and biological attacks. The report has been turned over to Airports Council International (ACI) and the American Association of Airport Executives (AAAE), two organizations that together represent the interests of thousands of airport personnel and facilities in the U.S. and around the world.

  19. Greywater production in airports : qualitative and quantitative assessment.

    OpenAIRE

    Couto, Eduardo de Aguiar do; Calijuri, Maria Lúcia; Assemany, Paula Peixoto; Santiago,Aníbal da Fonseca; Carvalho, Isabella de Castro

    2013-01-01

    Airport complexes are great water consumers where the adoption of reuse practices adapted to their particular characteristics may represent significant savings of financial and environmental resources. Greywater reuse is an important alternative for reducing potable water consumption in airports. The objective of this study was to assess the quality of greywater produced in airport environments and the reuse potential of such effluent. This study was developed in a mid-size airport in Brazil,...

  20. Productivity Analysis of Public and Private Airports: A Causal Investigation

    Science.gov (United States)

    Vasigh, Bijan; Gorjidooz, Javad

    2007-01-01

    Around the world, airports are being viewed as enterprises, rather than public services, which are expected to be managed efficiently and provide passengers with courteous customer services. Governments are, increasingly, turning to the private sectors for their efficiency in managing the operation, financing, and development, as well as providing security for airports. Operational and financial performance evaluation has become increasingly important to airport operators due to recent trends in airport privatization. Assessing performance allows the airport operators to plan for human resources and capital investment as efficiently as possible. Productivity measurements may be used as comparisons and guidelines in strategic planning, in the internal analysis of operational efficiency and effectiveness, and in assessing the competitive position of an airport in transportation industry. The primary purpose of this paper is to investigate the operational and financial efficiencies of 22 major airports in the United States and Europe. These airports are divided into three groups based on private ownership (7 British Airport Authority airports), public ownership (8 major United States airports), and a mix of private and public ownership (7 major European Union airports. The detail ownership structures of these airports are presented in Appendix A. Total factor productivity (TFP) model was utilized to measure airport performance in terms of financial and operational efficiencies and to develop a benchmarking tool to identify the areas of strength and weakness. A regression model was then employed to measure the relationship between TFP and ownership structure. Finally a Granger causality test was performed to determine whether ownership structure is a Granger cause of TFP. The results of the analysis presented in this paper demonstrate that there is not a significant relationship between airport TFP and ownership structure. Airport productivity and efficiency is

  1. Estimating Traveler Populations at Airport and Cruise Terminals for Population Distribution and Dynamics

    Energy Technology Data Exchange (ETDEWEB)

    Jochem, Warren C [ORNL; Sims, Kelly M [ORNL; Bright, Eddie A [ORNL; Urban, Marie L [ORNL; Rose, Amy N [ORNL; Coleman, Phil R [ORNL; Bhaduri, Budhendra L [ORNL

    2013-01-01

    In recent years, uses of high-resolution population distribution databases are increasing steadily for environmental, socioeconomic, public health, and disaster-related research and operations. With the development of daytime population distribution, temporal resolution of such databases has been improved. However, the lack of incorporation of transitional population, namely business and leisure travelers, leaves a significant population unaccounted for within the critical infrastructure networks, such as at transportation hubs. This paper presents two general methodologies for estimating passenger populations in airport and cruise port terminals at a high temporal resolution which can be incorporated into existing population distribution models. The methodologies are geographically scalable and are based on, and demonstrate how, two different transportation hubs with disparate temporal population dynamics can be modeled utilizing publicly available databases including novel data sources of flight activity from the Internet which are updated in near-real time. The airport population estimation model shows great potential for rapid implementation for a large collection of airports on a national scale, and the results suggest reasonable accuracy in the estimated passenger traffic. By incorporating population dynamics at high temporal resolutions into population distribution models, we hope to improve the estimates of populations exposed to or at risk to disasters, thereby improving emergency planning and response, and leading to more informed policy decisions.

  2. A Cohort Study on Meniscal Lesions among Airport Baggage Handlers

    DEFF Research Database (Denmark)

    Mikkelsen, Sigurd; Brauer, Charlotte; Pedersen, Ellen Bøtker

    2016-01-01

    of unskilled men employed at Copenhagen Airport or in other companies in the metropolitan Copenhagen area from 1990 to 2012 (the Copenhagen Airport Cohort). The cohort at risk included 3,307 airport baggage handlers with heavy lifting and kneeling or squatting work tasks and 63,934 referents with a similar...

  3. 14 CFR 121.97 - Airports: Required data.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airports: Required data. 121.97 Section 121... § 121.97 Airports: Required data. (a) Each certificate holder conducting domestic or flag operations must show that each route it submits for approval has enough airports that are properly equipped...

  4. 14 CFR 121.624 - ETOPS Alternate Airports.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false ETOPS Alternate Airports. 121.624 Section... Alternate Airports. (a) No person may dispatch or release an airplane for an ETOPS flight unless enough ETOPS Alternate Airports are listed in the dispatch or flight release such that the airplane...

  5. 46 CFR 72.05-30 - Windows and airports.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 3 2010-10-01 2010-10-01 false Windows and airports. 72.05-30 Section 72.05-30 Shipping... Structural Fire Protection § 72.05-30 Windows and airports. (a) For the purpose of this subpart, all glass in windows or airports shall be at least 1/4 inch thick. However, greater thickness may be required...

  6. 14 CFR 121.117 - Airports: Required data.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airports: Required data. 121.117 Section... Operations § 121.117 Airports: Required data. (a) No certificate holder conducting supplemental operations may use any airport unless it is properly equipped and adequate for the proposed...

  7. Un Viaje al Aeropuerto (A Trip to the Airport).

    Science.gov (United States)

    Federal Aviation Administration (DOT), Washington, DC.

    This illustrated, bilingual Spanish-English intermediate reader describes a class trip to an airport, in which the class tours the airport, and learns about airport activities, the parts of an airplane, and other related topics. Each page of the text is illustrated with a drawing. The narrative is followed by a list of 24 suggested learning…

  8. 78 FR 53184 - Land Release for Penn Yan Airport

    Science.gov (United States)

    2013-08-28

    ... Federal Aviation Administration Land Release for Penn Yan Airport AGENCY: Federal Aviation Administration... requesting public comment on the Penn Yan Airport (PEO), Penn Yan, New York, Notice of Proposed Release from Aeronautical Use of approximately 0.069 +/- acres of airport property, to allow for...

  9. 77 FR 12905 - Land Release for Penn Yan Airport

    Science.gov (United States)

    2012-03-02

    ... Federal Aviation Administration Land Release for Penn Yan Airport AGENCY: Federal Aviation Administration... requesting public comment on the Penn Yan Airport (PEO), Penn Yan, New York, Notice of Proposed Release from Aeronautical Use of approximately 10.00 +/- acres of airport property, to allow for...

  10. 77 FR 17492 - Expansion of Global Entry to Additional Airports

    Science.gov (United States)

    2012-03-26

    ... selection process, and the initial airport locations. See 77 FR 5681 and 8 CFR 235.12. Travelers who wish to... SECURITY U.S. Customs and Border Protection Expansion of Global Entry to Additional Airports AGENCY: U.S... as Global Entry, at twenty major U.S. airports. Global Entry allows pre-approved,...

  11. 77 FR 27272 - Land Release for Dunkirk Airport

    Science.gov (United States)

    2012-05-09

    ... Federal Aviation Administration Land Release for Dunkirk Airport AGENCY: Federal Aviation Administration... requesting public comment on the Dunkirk Airport (DKK), Dunkirk, New York, Notice of Proposed Release from Aeronautical Use of approximately 2.666 +/- acres of airport property, to allow for...

  12. 77 FR 55895 - Permanent Closure of Cincinnati Blue Ash Airport

    Science.gov (United States)

    2012-09-11

    ... Federal Aviation Administration Permanent Closure of Cincinnati Blue Ash Airport AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of permanent closure of Cincinnati Blue Ash Airport (ISZ). SUMMARY: The... Cincinnati advising that on August 29, 2012, it was permanently closing Cincinnati Blue Ash Airport...

  13. Airports, Hotel, and Ground Transportation Information | Division of Cancer Prevention

    Science.gov (United States)

    Airports in and near Washington, DC Reagan National (DCA)  Approximate 30 minute drive from Rockville* Has its own Metro stop on the blue and yellow lines in Virginia NOTE: This airport may be the closest and easiest option if not renting a car or do not want to pay for an airport cab/shuttle.   Dulles International (IAD) |

  14. 78 FR 48217 - Notice of Request To Release Airport Property

    Science.gov (United States)

    2013-08-07

    ... To Release Airport Property AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of intent to rule on request to release airport property at the Ottumwa Regional Airport (OTM), Ottumwa....martin@faa.gov . The request to release property may be reviewed, by appointment, in person at this...

  15. Havalimanında Kuyruk Simülasyonu: İzmir-Gaziemir Adnan Menderes Havalimanı Uygulaması (Queuing Line Simulation in Airport: Application of İzmir Gaziemir Adnan Menderes Airport

    Directory of Open Access Journals (Sweden)

    Bülent TATAR

    2009-07-01

    Full Text Available 23rd International Universiade Olympic Games will be held in Izmir between July 6 and 16 and is the second largest organisation after World Olympic Games. Almost 8000 athletes from 170 different countries will attend to the games and a well organised airway transportation traffic is one of the major concerns. Thus optimization of the airway traffic is needed also because of the expected increase of the density of Adnan Menderes Airport due to continuing national air traffic. Waiting time optimization of the incoming and outgoing planes is a necessity. So it will be examined if a new landing field is need or not. In order to do this the most crowded day 08 30 2002 is selected as a reference and analysis has been carried. Data have been collected from the observation of 100 planes that had been used on the selected date.

  16. A Marine Traffic Flow Model

    Directory of Open Access Journals (Sweden)

    Tsz Leung Yip

    2013-03-01

    Full Text Available A model is developed for studying marine traffic flow through classical traffic flow theories, which can provide us with a better understanding of the phenomenon of traffic flow of ships. On one hand, marine traffic has its special features and is fundamentally different from highway, air and pedestrian traffic. The existing traffic models cannot be simply extended to marine traffic without addressing marine traffic features. On the other hand, existing literature on marine traffic focuses on one ship or two ships but does not address the issues in marine traffic flow.

  17. Implications of traffic characteristics on interdomain traffic engineering

    OpenAIRE

    Uhlig, Steve

    2004-01-01

    This thesis discusses the implications of the traffic characteristics on interdomain traffic engineering with BGP. We first provide an overview of the interdomain traffic control problem. Then, we present results concerning the characteristics of the interdomain traffic, based on the analysis of real traffic traces gathered from non-transit ASes. We discuss the implications of the topological properties of the traffic on interdomain traffic engineering. Based on this knowledge of the...

  18. 77 FR 68196 - Orders Limiting Operations at John F. Kennedy International Airport, LaGuardia Airport, and...

    Science.gov (United States)

    2012-11-15

    ... CFR 93.227 (DCA); 74 FR 51648 (Oct. 7, 2009) (EWR); 74 FR 51650 (Oct. 7, 2009) (JFK); 77 FR 30585 (May... Authorizations (slots) at John F. Kennedy International Airport (JFK), LaGuardia Airport (LGA), and Newark... occurred at slot-controlled and non- slot-controlled airports. JFK and EWR were effectively closed...

  19. 75 FR 60495 - Notice of Intent To Rule on Request To Release Airport Property at Monroe Regional Airport...

    Science.gov (United States)

    2010-09-30

    ... Federal Aviation Administration Notice of Intent To Rule on Request To Release Airport Property at Monroe Regional Airport, Monroe, LA AGENCY: Federal Aviation Administration (FAA) DOT. ACTION: Request for Public... Regional Airport under the provisions of Title 49, U.S.C. Section 47153(c). DATES: Comments must...

  20. 76 FR 30422 - Notice of Intent To Rule on Request To Release Airport Property at the Helena Regional Airport...

    Science.gov (United States)

    2011-05-25

    ... Federal Aviation Administration Notice of Intent To Rule on Request To Release Airport Property at the Helena Regional Airport, Helena, Montana AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of Request to Release Airport Property. SUMMARY: The FAA proposes to...

  1. 78 FR 20168 - Notice of Intent To Rule on Request To Release Airport Property at the Boulder Municipal Airport...

    Science.gov (United States)

    2013-04-03

    ... Federal Aviation Administration Notice of Intent To Rule on Request To Release Airport Property at the Boulder Municipal Airport, Boulder, CO AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of request to release airport property. SUMMARY: The FAA proposes to rule and invite public...

  2. 77 FR 12906 - Notice of Intent To Rule on Request To Release Airport Property at the Dubois Regional Airport...

    Science.gov (United States)

    2012-03-02

    ... Federal Aviation Administration Notice of Intent To Rule on Request To Release Airport Property at the Dubois Regional Airport, Reynoldsville, PA AGENCY: Federal Aviation Administration (FAA) DOT. ACTION: Notice of request to release airport property. SUMMARY: The FAA proposes to rule and invite...

  3. 76 FR 23854 - Notice of Intent To Rule on Request To Release Airport Property at the Dubois Regional Airport...

    Science.gov (United States)

    2011-04-28

    ... Federal Aviation Administration Notice of Intent To Rule on Request To Release Airport Property at the Dubois Regional Airport, Reynoldsville, PA AGENCY: Federal Aviation Administration (FAA) DOT. ACTION: Notice of request to release airport property. SUMMARY: The FAA proposes to rule and invite...

  4. 76 FR 19517 - Orders Limiting Scheduled Operations at John F. Kennedy International Airport, LaGuardia Airport...

    Science.gov (United States)

    2011-04-07

    ....\\1\\ \\1\\ 75 FR 9017 (Feb. 26, 2010). ATA also stated the National Oceanic and Atmospheric...\\ 14 CFR 93.227 (DCA); 74 FR 51648 (Oct. 7, 2009) (EWR); 74 FR 51650 (Oct. 7, 2009) (JFK); 74 FR 51653... Airport, LaGuardia Airport, and Newark Liberty International Airport; High Density Rule at Reagan...

  5. 75 FR 41922 - Notice of Intent To Rule on Request To Release Airport Property at Fort Smith Regional Airport...

    Science.gov (United States)

    2010-07-19

    ... Smith Regional Airport, Fort Smith, AR AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... comment on the release of land at Fort Smith Regional Airport under the provisions of Title 49, U.S.C... comments submitted to the FM must be mailed or delivered to Mr. John Parker, Airport Director, Fort...

  6. Integrated Traffic Flow Management Decision Making

    Science.gov (United States)

    Grabbe, Shon R.; Sridhar, Banavar; Mukherjee, Avijit

    2009-01-01

    A generalized approach is proposed to support integrated traffic flow management decision making studies at both the U.S. national and regional levels. It can consider tradeoffs between alternative optimization and heuristic based models, strategic versus tactical flight controls, and system versus fleet preferences. Preliminary testing was accomplished by implementing thirteen unique traffic flow management models, which included all of the key components of the system and conducting 85, six-hour fast-time simulation experiments. These experiments considered variations in the strategic planning look-ahead times, the replanning intervals, and the types of traffic flow management control strategies. Initial testing indicates that longer strategic planning look-ahead times and re-planning intervals result in steadily decreasing levels of sector congestion for a fixed delay level. This applies when accurate estimates of the air traffic demand, airport capacities and airspace capacities are available. In general, the distribution of the delays amongst the users was found to be most equitable when scheduling flights using a heuristic scheduling algorithm, such as ration-by-distance. On the other hand, equity was the worst when using scheduling algorithms that took into account the number of seats aboard each flight. Though the scheduling algorithms were effective at alleviating sector congestion, the tactical rerouting algorithm was the primary control for avoiding en route weather hazards. Finally, the modeled levels of sector congestion, the number of weather incursions, and the total system delays, were found to be in fair agreement with the values that were operationally observed on both good and bad weather days.

  7. Louisiana Airports, Geographic NAD83, FEMA (1997)[airports_FEMA_1997

    Data.gov (United States)

    Louisiana Geographic Information Center — This is is a point dataset for the locations and attributes of 20 Louisiana airports. The attributes include name, address, city, county (sic), state, phone,...

  8. Optimal Hybrid Renewable Airport Power System: Empirical Study on Incheon International Airport, South Korea

    Directory of Open Access Journals (Sweden)

    Seoin Baek

    2016-06-01

    Full Text Available In response to global energy problems (e.g., the oil crisis, the Fukushima accident, the Paris Agreement, the South Korean government has executed a strict renewable energy plan to decrease the country’s dependence on fossil fuel. Public facilities, such as international airports, which use substantial amounts of electricity, are the most in need of government regulation. In this study, we attempt to determine the optimal hybrid electricity generation system for South Korea’s largest airport: Incheon International Airport. In the analysis, we use three scenarios: the current load, 120% of the current load, and 140% of the current load, according to the plan to expand Incheon International Airport. According to the COE (cost of electricity and the NPC (net present cost of the result, it is economically feasible to completely cover the potential increase in the electric load with PV power. Government policy implications and limitations are discussed.

  9. Public Use Airports, Geographic WGS84, BTS (2006) [public_use_airports_BTS_2006

    Data.gov (United States)

    Louisiana Geographic Information Center — The Public Use Airports database is a geographic point database of aircraft landing facilities in the United States and U.S. Territories. Attribute data is provided...

  10. Public Use Airport Runways, Geographic WGS84, BTS (2006) [public_use_airport_runway_BTS_2006

    Data.gov (United States)

    Louisiana Geographic Information Center — The Public Use Airport Runways database is a geographic dataset of runways in the United States and US territories containing information on the physical...

  11. Mapping and Managing essential resource flows in airport regions - the case of Amsterdam Airport Schiphol

    NARCIS (Netherlands)

    Geldermans, R.J.; Wandl, A.; Van den Dobbelsteen, A.A.J.F.

    2014-01-01

    Metropolitan airports are focal points of large amounts of essential resource flows, such as energy, materials, water and food. These flows are predominantly linear, whilst externalising both the negative and positive impacts associated with them. Moreover, qualitative and quantitative understanding

  12. Ant Colony Algorithm and Simulation for Robust Airport Gate Assignment

    Directory of Open Access Journals (Sweden)

    Hui Zhao

    2014-01-01

    Full Text Available Airport gate assignment is core task for airport ground operations. Due to the fact that the departure and arrival time of flights may be influenced by many random factors, the airport gate assignment scheme may encounter gate conflict and many other problems. This paper aims at finding a robust solution for airport gate assignment problem. A mixed integer model is proposed to formulate the problem, and colony algorithm is designed to solve this model. Simulation result shows that, in consideration of robustness, the ability of antidisturbance for airport gate assignment scheme has much improved.

  13. Optimizing integrated airport surface and terminal airspace operations under uncertainty

    Science.gov (United States)

    Bosson, Christabelle S.

    In airports and surrounding terminal airspaces, the integration of surface, arrival and departure scheduling and routing have the potential to improve the operations efficiency. Moreover, because both the airport surface and the terminal airspace are often altered by random perturbations, the consideration of uncertainty in flight schedules is crucial to improve the design of robust flight schedules. Previous research mainly focused on independently solving arrival scheduling problems, departure scheduling problems and surface management scheduling problems and most of the developed models are deterministic. This dissertation presents an alternate method to model the integrated operations by using a machine job-shop scheduling formulation. A multistage stochastic programming approach is chosen to formulate the problem in the presence of uncertainty and candidate solutions are obtained by solving sample average approximation problems with finite sample size. The developed mixed-integer-linear-programming algorithm-based scheduler is capable of computing optimal aircraft schedules and routings that reflect the integration of air and ground operations. The assembled methodology is applied to a Los Angeles case study. To show the benefits of integrated operations over First-Come-First-Served, a preliminary proof-of-concept is conducted for a set of fourteen aircraft evolving under deterministic conditions in a model of the Los Angeles International Airport surface and surrounding terminal areas. Using historical data, a representative 30-minute traffic schedule and aircraft mix scenario is constructed. The results of the Los Angeles application show that the integration of air and ground operations and the use of a time-based separation strategy enable both significant surface and air time savings. The solution computed by the optimization provides a more efficient routing and scheduling than the First-Come-First-Served solution. Additionally, a data driven analysis is

  14. Motorway closure near the airport for one night

    CERN Multimedia

    2007-01-01

    In the framework of the third phase of maintenance work on the Geneva motorway bypass, the airport section will be closed to traffic in the "France" direction from 8.30 p.m. to 5.00 a.m. during the night of Monday 2nd July to Tuesday 3rd July. Diversion signs indicating an alternative route will be erected. The work in question may be postponed in the event of bad weather conditions or if the state of progress of the work so dictates. The exact date will be therefore confirmed the day before on the following radio stations: RSR 91.2 FM (Geneva) and 94.9 FM (Leman basin), Radio Lac 91.8 FM (Geneva), 93.3 FM (Nyon) and 95.6 FM (Lausanne). The relevant information can also be obtained by dialling 163. We should like to you in advance for your understanding. For further information: Tel. 163. The Project Management
State of Geneva
Department of Construction and 
Information Technologies
Civil Engineering Department

  15. Best management practices for airport deicing stormwater.

    Science.gov (United States)

    Switzenbaum, M S; Veltman, S; Mericas, D; Wagoner, B; Schoenberg, T

    2001-06-01

    With the advent of new regulations concerning aircraft deicing and management of spent aircraft deicing fluids (ADFs), many airports now face the dual challenges of simultaneously maintaining public safety and protecting the environment. This paper provides a theoretical assessment of the potential environmental impact of stormwater runoff and offers detailed current information on alternative deicing fluid application methods and materials, collection and treatment practices.

  16. 32 CFR 644.428 - Airport property.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 4 2010-07-01 2010-07-01 true Airport property. 644.428 Section 644.428 National Defense Department of Defense (Continued) DEPARTMENT OF THE ARMY (CONTINUED) REAL PROPERTY REAL ESTATE HANDBOOK Disposal Disposal of Fee-Owned Real Property and Easement Interests § 644.428...

  17. Expanding the Use of Time-Based Metering: Multi-Center Traffic Management Advisor

    Science.gov (United States)

    Landry, Steven J.; Farley, Todd; Hoang, Ty

    2005-01-01

    Time-based metering is an efficient air traffic management alternative to the more common practice of distance-based metering (or "miles-in-trail spacing"). Despite having demonstrated significant operational benefit to airspace users and service providers, time-based metering is used in the United States for arrivals to just nine airports and is not used at all for non-arrival traffic flows. The Multi-Center Traffic Management Advisor promises to bring time-based metering into the mainstream of air traffic management techniques. Not constrained to operate solely on arrival traffic, Multi-Center Traffic Management Advisor is flexible enough to work in highly congested or heavily partitioned airspace for any and all traffic flows in a region. This broader and more general application of time-based metering is expected to bring the operational benefits of time-based metering to a much wider pool of beneficiaries than is possible with existing technology. It also promises to facilitate more collaborative traffic management on a regional basis. This paper focuses on the operational concept of the Multi-Center Traffic Management Advisor, touching also on its system architecture, field test results, and prospects for near-term deployment to the United States National Airspace System.

  18. Costs of traffic injuries

    DEFF Research Database (Denmark)

    Kruse, Marie

    2015-01-01

    assessed using Danish national healthcare registers. Productivity costs were computed using duration analysis (Cox regression models). In a subanalysis, cost per severe traffic injury was computed for the 12 995 individuals that experienced a severe injury. RESULTS: The socioeconomic cost of a traffic......OBJECTIVE: The aim of this study was to analyse the socioeconomic costs of traffic injuries in Denmark, notably the healthcare costs and the productivity costs related to traffic injuries, in a bottom-up, register-based perspective. METHOD: Traffic injury victims were identified using national...... emergency room data and police records. Victims were matched with five controls per case by means of propensity score, nearest-neighbour matching. In the cohort, consisting of the 52 526 individuals that experienced a traffic injury in 2000 and 262 630 matched controls, attributable healthcare costs were...

  19. Evolutionary Concepts for Decentralized Air Traffic Flow Management

    Science.gov (United States)

    Adams, Milton; Kolitz, Stephan; Milner, Joseph; Odoni, Amedeo

    1997-01-01

    Alternative concepts for modifying the policies and procedures under which the air traffic flow management system operates are described, and an approach to the evaluation of those concepts is discussed. Here, air traffic flow management includes all activities related to the management of the flow of aircraft and related system resources from 'block to block.' The alternative concepts represent stages in the evolution from the current system, in which air traffic management decision making is largely centralized within the FAA, to a more decentralized approach wherein the airlines and other airspace users collaborate in air traffic management decision making with the FAA. The emphasis in the discussion is on a viable medium-term partially decentralized scenario representing a phase of this evolution that is consistent with the decision-making approaches embodied in proposed Free Flight concepts for air traffic management. System-level metrics for analyzing and evaluating the various alternatives are defined, and a simulation testbed developed to generate values for those metrics is described. The fundamental issue of modeling airline behavior in decentralized environments is also raised, and an example of such a model, which deals with the preservation of flight bank integrity in hub airports, is presented.

  20. Traffic Signs Inventory System

    Directory of Open Access Journals (Sweden)

    J. Ružbarský

    2013-06-01

    Full Text Available The paper is focused on practical application of Cambridge Correlator. The goal is to propose a traffic signs inventory system by using excellent characteristics of correlator in the rapid optical correlation. The proposal of this inventory system includes obtaining of traffic signs to create the database either collecting the GPS coordinates. It is necessary to know the traffic signs position and also to document the entire surface route for later evaluation in offline mode.

  1. Traffic Aware Strategic Aircrew Requests (TASAR)

    Science.gov (United States)

    Wing, David J.

    2014-01-01

    The Traffic Aware Strategic Aircrew Request (TASAR) concept offers onboard automation for the purpose of advising the pilot of traffic compatible trajectory changes that would be beneficial to the flight. A fast-time simulation study was conducted to assess the benefits of TASAR to Alaska Airlines. The simulation compares historical trajectories without TASAR to trajectories developed with TASAR and evaluated by controllers against their objectives. It was estimated that between 8,000 and 12,000 gallons of fuel and 900 to 1,300 minutes could be saved annually per aircraft. These savings were applied fleet-wide to produce an estimated annual cost savings to Alaska Airlines in excess of $5 million due to fuel, maintenance, and depreciation cost savings. Switching to a more wind-optimal trajectory was found to be the use case that generated the highest benefits out of the three TASAR use cases analyzed. Alaska TASAR requests peaked at four to eight requests per hour in high-altitude Seattle center sectors south of Seattle-Tacoma airport..

  2. Characterization and Analysis of Energy Demand Patterns in Airports

    Directory of Open Access Journals (Sweden)

    Sergio Ortega Alba

    2017-01-01

    Full Text Available Airports in general have high-energy consumption. Influenced by many factors, the characteristics of airport energy consumption are stochastic, nonlinear and dynamic. In recent years, airport managers have made huge efforts to harmonize airport operation with environmental sustainability by minimizing the environmental impact, with energy conservation and energy efficiency as one of their pillars. A key factor in order to reduce energy consumption at airports is to understand the energy use and consumption behavior, due to the multiple parameters and singularities that are involved. In this article, a 3-step methodology based on monitoring methods is proposed to characterize and analyze energy demand patterns in airports through their electric load profiles, and is applied to the Seve Ballesteros-Santander Airport (Santander, Spain. This methodology can be also used in airports in order to determine the way energy is used, to establish the classification of the electrical charges based on their operation way as well as to determine the main energy consumers and main external influencers. Results show that airport present a daily energy demand pattern since electric load profiles follow a similar curve shape for every day of the year, having a great dependence of the terminal building behavior, the main energy consumer of the airport, and with heating, ventilation and air conditioning (HVAC and lighting being the most energy-intensive facilities, and outside temperature and daylighting the main external influencers.

  3. 77 FR 73310 - Technical Amendment to List of User Fee Airports: Addition of Bozeman Yellowstone International...

    Science.gov (United States)

    2012-12-10

    ... Airports: Addition of Bozeman Yellowstone International Airport, Belgrade, MT AGENCY: U.S. Customs and... user fee airports to reflect the recent user fee airport designation for Bozeman Yellowstone... approving the designation of user fee status for Bozeman Yellowstone International Airport was signed...

  4. 14 CFR 121.197 - Airplanes: Turbine engine powered: Landing limitations: Alternate airports.

    Science.gov (United States)

    2010-01-01

    ... limitations: Alternate airports. 121.197 Section 121.197 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... airports. No person may list an airport as an alternate airport in a dispatch or flight release for a... obstruction clearance plane and the runway. In the case of an alternate airport for departure, as provided...

  5. Disaggregate Traffic Mode Choice Model Based on Combination of Revealed and Stated Preference Data

    Institute of Scientific and Technical Information of China (English)

    JIAO Pengpeng; LU Huapu; YANG Lang

    2006-01-01

    The conventional traffic demand forecasting methods based on revealed preference (RP) data are not able to predict the modal split. Passengers' stated intentions are indispensable for modal split forecasting and evaluation of new traffic modes. This paper analyzed the biases and errors included in stated preference data, put forward the new stochastic utility functions, and proposed an unbiased disaggregate model and its approximate model based on the combination of RP and stated preference (SP) data, with analysis of the parameter estimation algorithm. The model was also used to forecast rail transit passenger volumes to the Beijing Capital International Airport and the shift ratios from current traffic modes to rail transit. Experimental results show that the model can greatly increase forecasting accuracy of the modal split ratio of current traffic modes and can accurately forecast the shift ratios from current modes to the new mode.

  6. Statistical characterization of deviations from planned flight trajectories in air traffic management

    CERN Document Server

    Bongiorno, C; Lillo, F; Mantegna, R N; Miccichè, S

    2016-01-01

    Understanding the relation between planned and realized flight trajectories and the determinants of flight deviations is of great importance in air traffic management. In this paper we perform an in depth investigation of the statistical properties of planned and realized air traffic on the German airspace during a 28 day periods, corresponding to an AIRAC cycle. We find that realized trajectories are on average shorter than planned ones and this effect is stronger during night-time than daytime. Flights are more frequently deviated close to the departure airport and at a relatively large angle to destination. Moreover, the probability of a deviation is higher in low traffic phases. All these evidences indicate that deviations are mostly used by controllers to give directs to flights when traffic conditions allow it. Finally we introduce a new metric, termed difork, which is able to characterize navigation points according to the likelihood that a deviation occurs there. Difork allows to identify in a statist...

  7. Turning Traffic Jams to Jelly

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    Beijing, known for having the worst traffic in China, is brewing up a traffic plan with the harshest ever measures to ensure smooth traffic flow as the capital’s gridlock during rush hour and private car sales soar.

  8. Road Traffic in China

    NARCIS (Netherlands)

    Jie, L.; Van Zuylen, H.J.

    2014-01-01

    Traffic is tightly related to the social and economic development in a country. In China the development of the economy has been very fast in the past 30 years and this is still continuing. The transport infrastructure shows a similar pattern, while traffic is also rapidly growing. In urban areas th

  9. Distraction in traffic.

    NARCIS (Netherlands)

    2013-01-01

    Many drivers, as well as cyclists and pedestrians, are occupied with all kinds of activities that can distract their attention from traffic, like listening to music, conducting a conversation on their mobile phone, or texting. Distraction has negative effects on traffic behaviour. Most studies estim

  10. Traffic Light Options

    DEFF Research Database (Denmark)

    Jørgensen, Peter Løchte

    This paper introduces, prices, and analyzes traffic light options. The traffic light option is an innovative structured OTC derivative developed independently by several London-based investment banks to suit the needs of Danish life and pension (L&P) companies, which must comply with the traffic...... light solvency stress test system introduced by the Danish Financial Supervisory Authority (DFSA) in June 2001. This monitoring system requires L&P companies to submit regular reports documenting the sensitivity of the companies' base capital to certain pre-defined market shocks - the red and yellow...... light scenarios. These stress scenarios entail drops in interest rates as well as in stock prices, and traffic light options are thus designed to pay off and preserve sufficient capital when interest rates and stock prices fall simultaneously. Sweden's FSA implemented a traffic light system in January...

  11. Traffic Light Options

    DEFF Research Database (Denmark)

    Jørgensen, Peter Løchte

    2007-01-01

    This paper introduces, prices, and analyzes traffic light options. The traffic light option is an innovative structured OTC derivative developed independently by several London-based investment banks to suit the needs of Danish life and pension (L&P) companies, which must comply with the traffic...... light solvency stress test system introduced by the Danish Financial Supervisory Authority (DFSA) in June 2001. This monitoring system requires L&P companies to submit regular reports documenting the sensitivity of the companies' base capital to certain pre-defined market shocks - the red and yellow...... light scenarios. These stress scenarios entail drops in interest rates as well as in stock prices, and traffic light options are thus designed to pay off and preserve sufficient capital when interest rates and stock prices fall simultaneously. Sweden's FSA implemented a traffic light system in January...

  12. Properties of Traffic Risk Coefficient

    Institute of Scientific and Technical Information of China (English)

    TANG Tie-Qiao; HUANG Hai-Jun; SHANG Hua-Yan; XUE Yu

    2009-01-01

    We use the model with the consideration of the traffic interruption probability (Physica A 387(2008)6845) to study the relationship between the traffic risk coefficient and the traffic interruption probability.The analytical and numerical results show that the traffic interruption probability will reduce the traffic risk coefficient and that the reduction is related to the density, which shows that this model can improve traffic security.

  13. RISK ASSESSMENT PROCEDURE FOR CIVIL AIRPORT

    Directory of Open Access Journals (Sweden)

    Natalia Distefano

    2014-03-01

    Full Text Available A practical problem in air transport is how to manage risk and safety. In recent years have been developed special technical and managerial skills to the systematic, forward looking identification and control of hazards throughout the life cycle of a project, program, or activity. Safety Management System (SMS involves identifying, evaluating, and addressing of hazards or risk. Its sole purpose is to prevent accidents. Safety risk assessment is defined as the systematic identification and evaluation of the risk posed by the complete spectrum of possible accident scenarios. Risk assessment is a tool that supports decision making and as such supports risk management. Risk management comprises the safety optimization of the system, the verification process and risk acceptance, which support airport operations. This paper proposed a quantitative methodology for the risk assessment for a civil airport, which is based on historical data of aircraft accidents, contained in the Aviation Safety Network database, from 1 January 1980 to 31 December 2010.

  14. Interrelation of the Problems of the Aircraft Fleet Development and the Improvement of the Air Traffic Control System

    Directory of Open Access Journals (Sweden)

    Mihail Yurevich Smurov

    2016-07-01

    Full Text Available In the article the problems of air transport have been identified. Among these problems, the congestion of airports and airspace and the need for development and modernization of the airport network are of particular importance. In this regard, the authors consider the improvement of the air traffic control system (ATC system by integrating existing ATC systems into a single global system with the use of unified international standards, rules and procedures. The article also specifies the main indicators characterizing the dynamics of the development of the air transport industry in Russia and abroad.

  15. New terminal of Beijing Capial International Airport

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    THE extension of the terminal at the Beijing Capital International Airport, one of the key construction projects of the Ninth National Five Year Plan, was completed successfully in September 1999. The Hshaped new terminal building covers a total area of 336 thousand square meters -- four times that of the old one. It stands three floors above ground (part of it four floors) and one floor underground. Its opening upgrades peak time passenger

  16. Hotellipaketin suunnittelu Case: Hilton Helsinki Airport

    OpenAIRE

    Kyrö, Niina; Grönqvist, Henna

    2014-01-01

    Tämän opinnäytetyön aiheena oli hotellipaketin suunnittelu, joka toteutettiin toimeksiantona kansainväliseen Hilton -ketjuun kuuluvalle Hilton Helsinki Airportille. Hilton Helsinki Airport tarjoaa täyden palvelun hotellina asiakkailleen majoitus-, kokous- ja ravintolapalveluita. Opinnäytetyö oli toiminnallinen. Sen tavoitteena oli tuottaa toteuttamiskelpoinen hotellipaketti. Työn tarkoituksena oli luoda lisäarvoa toimeksiantajan hotellipakettitarjontaan ja edistää hotellin asiakastyytyväisyyt...

  17. Airport testing an explosives detection portal

    Energy Technology Data Exchange (ETDEWEB)

    Rhykerd, C.; Linker, K.; Hannum, D.; Bouchier, F.; Parmeter, J.

    1998-08-01

    At the direction of the US Congress, following the Pan Am 103 and TWA 800 crashes, the Federal Aviation Administration funded development of non-invasive techniques to screen airline passengers for explosives. Such an explosives detection portal, developed at Sandia National Laboratories, was field tested at the Albuquerque International airport in September 1997. During the 2-week field trial, 2,400 passengers were screened and 500 surveyed. Throughput, reliability, maintenance and sensitivity were studied. Follow-up testing at Sandia and at Idaho National Engineering and Environmental Laboratory was conducted. A passenger stands in the portal for five seconds while overhead fans blow air over his body. Any explosive vapors or dislodged particles are collected in vents at the feet. Explosives are removed from the air in a preconcentrator and subsequently directed into an ion mobility spectrometer for detection. Throughput measured 300 passengers per hour. The non-invasive portal can detect subfingerprint levels of explosives residue on clothing. A survey of 500 passengers showed a 97% approval rating, with 99% stating that such portals, if effective, should be installed in airports to improve security. Results of the airport test, as well as operational issues, are discussed.

  18. The accessibility of European regions and airport network

    OpenAIRE

    Redondi, Renato; Malighetti, Paolo; Paleari, Stefano

    2011-01-01

    The objective of this work is to evaluate the accessibility of European municipalities by ground and air transportation. We compute the quickest paths between any origin municipality and any destination municipality separated by more than 500 km. The total travel time includes three components: i) travel by car to reach the origin airport; ii) travel by air from the origin airport to the destination airport, including waiting times when no direct flight is available; and iii) travel by car fr...

  19. Physical environment. [environmental impact statement required for general aviation airport construction

    Science.gov (United States)

    1975-01-01

    Environmental legislation affecting airports and the more common environmental effects resulting from airport construction are discussed with special emphasis on general aviation airports. The discussion is focused on the regulation of noise, pollution, and water quality.

  20. 77 FR 38705 - Draft Specification for Airport Light Bases, Transformer Housings, Junction Boxes, and...

    Science.gov (United States)

    2012-06-28

    ... Federal Aviation Administration Draft Specification for Airport Light Bases, Transformer Housings... comment on the Draft ``Specification for Airport Light Bases, Transformer Housings, Junction Boxes, and... recommendations for airport light bases, transformer housings, junction boxes and accessories. The FAA has...

  1. 郑州新郑国际机场容量评估分析%Capacity Evaluation and Analysis of Zhengzhou Xinzheng International Airport

    Institute of Scientific and Technical Information of China (English)

    刘建彬

    2015-01-01

    随着中原经济的快速发展,航空需求急剧增长带来了一系列问题,如高峰时机场拥挤、延误增加,服务质量下降等。造成这些问题的根本原因在于机场需求超过机场容量,机场容量已不能满足当前航空运输的需求。机场容量作为机场中最容易形成瓶颈的子系统往往决定了整个空中交通容量水平。本文通过郑州新郑国际机场容量评估分析,结合现场运行、航班运行特点及空中交通管理服务,从理论及管理上提出增加机场容量方式建议。%With the rapid development of the Central Plains economy, the rapid growth of aviation demand has brought a series of problems, such as the airport congestion during the peak period, increase of delay, the decrease of service quality, etc. The root cause of these problems lies in the fact that the airport demand exceeds the airport ca⁃pacity, the airport capacity cannot meet the needs of the current air transport. Airport capacity as the sub- system which is mostly easy to form of the bottleneck in the airport often determines the whole air traffic capacity levels. Based on the evaluation and analysis on the capacity of Zhengzhou Xinzheng International Airport, combined with On-site operation, flight operation features and air traffic management services, the paper puts forward the sugges⁃tions for increasing the capacity of the airport in the theory and management.

  2. Airport Surface Management Tools for NAS Users Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Decision support tools that make use of surface surveillance technologies data can potentially make it possible to increase airport throughput, better accommodate...

  3. VBR video traffic models

    CERN Document Server

    Tanwir, Savera

    2014-01-01

    There has been a phenomenal growth in video applications over the past few years. An accurate traffic model of Variable Bit Rate (VBR) video is necessary for performance evaluation of a network design and for generating synthetic traffic that can be used for benchmarking a network. A large number of models for VBR video traffic have been proposed in the literature for different types of video in the past 20 years. Here, the authors have classified and surveyed these models and have also evaluated the models for H.264 AVC and MVC encoded video and discussed their findings.

  4. Road Traffic Injuries

    Institute of Scientific and Technical Information of China (English)

    WANG Zheng-guo

    2005-01-01

    @@ As everybody knows that automobiles have been greatly changing our life. However, everything has two sides, motor vehicles have also caused a huge number of people's deaths, injuries and property damage. Traffic crashes are perhaps the number one public health problem in developed countries [1]. In the United States, pre-retirement years of life lost in traffic crashes are more than that of the two combined leading diseases: cancer and heart disease [1]. Today road traffic crash (RTC) ranks 11th in leading cause of death and accounts for 2.1% of all deaths globally.

  5. Turning Traffic Jams to Jelly

    Institute of Scientific and Technical Information of China (English)

    LI LI

    2010-01-01

    @@ Beijing, known for having the worst traffic in China, is brewing up a traffic plan with the harshest ever measures to ensure smooth traffic flow as the capital's gridlock during rush hour and private car sales soar. On December 13, the Beijing Municipal Government started soliciting public opinions for a draft plan designed to relieve the city's traffic problems.

  6. Allegheny County Traffic Counts

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Traffic sensors at over 1,200 locations in Allegheny County collect vehicle counts for the Pennsylvania Department of Transportation. Data included in the Health...

  7. Ethernet traffic measurement

    OpenAIRE

    Santschi, Yann; Corthay, François

    2012-01-01

    The goal of this project is to create a FPGA Ethernet traffic measurement point and interface it with an existing measurement network, named DPMI, that is developed in Blekinge Institute of Technology.

  8. Non-Traffic Citations

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Non-traffic citations (NTCs, also known as "summary offenses") document low-level criminal offenses where a law enforcement officer or other authorized official...

  9. Aviation Impacts on Property Values and Management: The Case of Suvarnabhumi International Airport

    Directory of Open Access Journals (Sweden)

    Patcharin Limlomwongse Suksmith

    2015-07-01

    Full Text Available Many countries have developed policies and measures to deal with the external impact of aviation on the wider community. There is, however, often controversy and lack of acceptance of some measures, such as compensation, in the communities affected by aviation. Such measures are often felt to be ineffective and perceived as unfair. A clear and objective model for determining compensation would be helpful to reduce controversy. The objective of this study is therefore to examine the relationship between aviation impacts and property values in the case of Thailand's Suvarnabhumi Airport for application to the possible improvement of compensation packages. Multiple regression analysis was used to determine the relationship between five common impacts of aviation (safety, noise, scenery, air pollution, and traffic and property value change, with data from a survey of sample communities around the airport. The results, both for the overall neighborhood and for separate land used types, show that only noise and air pollution demonstrate significant negative relations with property value. The effect of noise drives a higher impact on property price than the effect of air pollution. The main contribution of this research is to improve developing country compensation models by applied measurement from regression analysis to identify factors with significant impacts, using property value change as proxy to measure the impact of the airport. For example, in the case of Thailand, a compensation model should consider noise and air pollution as the main factors rather than consider only noise contour area. The higher weight on noise should be designed to reflect land use types. Furthermore the market value of property loss should be taken into account when designing a compensation package. The survey and regression method used in this study can be adapted for finding relevant factors and suggesting appropriate compensation for other environmental and

  10. Development of the one dimensional Fog Model PAFOG for operational Use at Munich Airport

    Science.gov (United States)

    Thoma, C.; Schneider, W.; Rohn, M.; Röhner, P.; Beckmann, B.-R.; Masbou, M.; Bott, A.

    2010-07-01

    Reduced visibility due to heavy fog is a hazard for land, sea, and air traffic. Especially for air transportation systems, reduced visibility leads to significant cost increments. Therefore, it is of particular importance to predict poor visibility fog events at airports accurately. In iPort-VIS, part of an aviation research program funded by the German Ministry for economy and technology, a site specific fog forecast system for Munich airport will be developed in cooperation between DWD, the German Aviation Control (DFS) and University of Bonn. The principal component of this forecast system is the one dimensional fog forecast model PAFOG (PArameterised FOG) that will be upgraded to operational use. The model consists of a parameterised microphysics scheme. The particle size distribution of cloud droplets is taken into account by a lognormal distribution and the visibility is calculated dependent on liquid water content and droplet concentration based on the Koschmieder formula. The turbulence in the atmospheric boundary layer is treated by the Mellor and Yamada closure scheme of order 2.5 in which a prognostic equation for the Turbulent Kinetic Energy (TKE) is solved. Radiative transports are considered by a Delta-Two-Stream Method with 18 spectral bands. Due to the fact that fog is a small scale complex phenomenon with high spatial and temporal variability, detailed knowledge of the atmospheric boundary layer structure is fundamental to get a realistic fog forecast. A time nudging scheme has been developed for integrating local observations (vertical profiles of temperature and specific humidity) periodically during the forecast. The system has been tested in several case studies with data from Lindenberg observatory and will be adapted to Munich airport with a new measurement system that will be installed by DWD. A second version of the nudging scheme, driven by the forecast of the high-resolution COSMO-DE model by DWD, is currently under development.

  11. 76 FR 15028 - Airport Improvement Program (AIP): Interim Policy Regarding Access to Airports From Residential...

    Science.gov (United States)

    2011-03-18

    ... users that are comparable to those charged to airport tenants so that all users bear a fair proportion... excavation or grading of land needed to construct a residential property or construction of a residence... duration of time, not to exceed 20 years. ``Development'' is defined as excavation or grading of...

  12. 77 FR 23598 - Technical Amendment to Cuba Airport List: Addition of Recently Approved Airports

    Science.gov (United States)

    2012-04-20

    ... SECURITY U.S. Customs and Border Protection 19 CFR Part 122 Technical Amendment to Cuba Airport List... from Cuba. DATES: Effective: April 20, 2012. FOR FURTHER INFORMATION CONTACT: Arthur A.E. Pitts, Sr., U... to all aircraft (except public aircraft) entering or departing the United States to or from...

  13. 78 FR 42419 - Airport Improvement Program (AIP): Policy Regarding Access to Airports From Residential Property

    Science.gov (United States)

    2013-07-16

    ... into new agreements. Two commenters shared their positive experiences as residential through-the-fence... self-fueling. The FAA will respond to specific comments submitted by organizations and individuals in... users who could be asked to bear a higher burden of the airport's costs or find the value of...

  14. 77 FR 51948 - Airport Improvement Program (AIP): Policy Regarding Access to Airports From Residential Property...

    Science.gov (United States)

    2012-08-28

    ... previously published interim policy (76 FR 15028; March 18, 2011) to commercial service airports that... 14, 2012. DATES: The comment period for the proposed policy document published July 30, 2012 (77 FR... Proposed Policy in the Federal Register at 77 FR 44515 proposing an FAA policy, based on Federal...

  15. 49 CFR 37.33 - Airport transportation systems.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 1 2010-10-01 2010-10-01 false Airport transportation systems. 37.33 Section 37.33 Transportation Office of the Secretary of Transportation TRANSPORTATION SERVICES FOR INDIVIDUALS WITH DISABILITIES (ADA) Applicability § 37.33 Airport transportation systems. (a)...

  16. 75 FR 62008 - Safety Management System for Certificated Airports

    Science.gov (United States)

    2010-10-07

    ... Research Projects The FAA initiated a number of collaborative efforts studying SMS application at U.S..., training, and reporting. Some airports may realize financial benefits through reduced insurance costs... would help an airport ensure: Individuals are trained on the safety implications of working on...

  17. Sensitivity analysis of airport noise using computer simulation

    Directory of Open Access Journals (Sweden)

    Flavio Maldonado Bentes

    2011-09-01

    Full Text Available This paper presents the method to analyze the sensitivity of airport noise using computer simulation with the aid of Integrated Noise Model 7.0. The technique serves to support the selection of alternatives to better control aircraft noise, since it helps identify which areas of the noise curves experienced greater variation from changes in aircraft movements at a particular airport.

  18. Creating Authenticity: Banal nationalism in Henri Coand\\[acaron] Airport

    OpenAIRE

    Alexandra Coţofan\\[acaron

    2011-01-01

    Alexandra Coţofan\\[acaron] analyzes the retail spaces of the Henri Coand\\[acaron] International Airport in Bucharest, Romania's largest international airport. She looks at how authenticity is created through the interactions among the company, staff and passengers in the production of ‘banal nationalism’.

  19. Route planning for airport personnel transporting passengers with reduced mobility

    DEFF Research Database (Denmark)

    Reinhardt, Line Blander; Clausen, Tommy; Pisinger, David

    Major airports have an average throughput of more than 100,000 passengers per day, some of which will need special assistance. The largest airports have a daily average throughput of more than 500 passengers with reduced mobility. A significant number of people and busses are assigned to provide ...

  20. Art at the Airport: An Exploration of New Art Worlds

    Science.gov (United States)

    Szekely, Ilona

    2012-01-01

    Many airports have transformed empty waiting spaces into mini malls, children's play areas, and displays of beautiful art, making a long wait a bit more pleasant. For the modern airport, showcasing art has become an important component, with perks including a built-in global audience, as well as the vast spaces of modern architecture. For the art…

  1. Atmospheric Corrosivity at Australian and Overseas Airbases and Airports

    Science.gov (United States)

    2014-07-01

    protective coating systems and corrosion inhibitor treatments deteriorate and become less effective. The CLIMAT environmental corrosion test has...UNCLASSIFIED UNCLASSIFIED Atmospheric Corrosivity at Australian and Overseas Airbases and Airports J C Bitcon Maritime...Division Defence Science and Technology Organisation DSTO-TN-1320 ABSTRACT Atmospheric corrosivity at 25 airbases and airports in Australia

  2. 75 FR 61612 - Airports/Locations: Special Operating Restrictions

    Science.gov (United States)

    2010-10-06

    ... ellen.crum@faa.gov . SUPPLEMENTARY INFORMATION: Background On November 30, 1999 (64 FR 66768), the FAA... Federal Aviation Administration 14 CFR Part 91 Airports/Locations: Special Operating Restrictions AGENCY... amending its airports and locations special operating restrictions regulation to clarify a...

  3. 19 CFR 122.12 - Operation of international airports.

    Science.gov (United States)

    2010-04-01

    ... Administration in 14 CFR part 91. (2) Customs and Border Protection. CBP, based on security or other risk... 19 Customs Duties 1 2010-04-01 2010-04-01 false Operation of international airports. 122.12...; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Classes of Airports § 122.12 Operation of...

  4. 78 FR 3311 - Safety Enhancements, Certification of Airports

    Science.gov (United States)

    2013-01-16

    ...) on Safety Enhancements Part 139, Certification of Airports (76 FR 5510). In the NPRM, the FAA... period until May 13, 2011, (76 FR 20570) because we learned that a number of airport operators were not... again reopened the comment period until July 5, 2011, (76 FR 32105) because several industry...

  5. 78 FR 44188 - Notice of Request To Release Airport Property

    Science.gov (United States)

    2013-07-23

    ... Federal Aviation Administration Notice of Request To Release Airport Property AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of intent to rule on request to release airport property at Sioux..., Kansas City, MO 64106, (816) 329-2644, lynn.martin@faa.gov . The request to release property may...

  6. 78 FR 48926 - Notice of Request To Release Airport Property

    Science.gov (United States)

    2013-08-12

    ... Federal Aviation Administration Notice of Request To Release Airport Property AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of Intent to Rule on Request to Release Airport Property at the Ottumwa..., MO 64106, (816) 329-2644, lynn.martin@faa.gov . The request to release property may be reviewed,...

  7. 76 FR 78967 - Notice of Request To Release Airport Property

    Science.gov (United States)

    2011-12-20

    ... Federal Aviation Administration Notice of Request To Release Airport Property AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of Intent To Rule on Request to Release Airport Property at the Liberal... Room 364, Kansas City, MO 64106, (816) 329-2644, lynn.martin@faa.gov . The request to release...

  8. 78 FR 65417 - Notice of Request To Release Airport Property

    Science.gov (United States)

    2013-10-31

    ... Federal Aviation Administration Notice of Request To Release Airport Property AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of Intent to Rule on Request to Release Airport Property at the Kearney..., (816) 329-2644, lynn.martin@faa.gov . The request to release property may be reviewed, by...

  9. 76 FR 66352 - Notice of Request To Release Airport Property

    Science.gov (United States)

    2011-10-26

    ... Federal Aviation Administration Notice of Request To Release Airport Property AGENCY: Federal Aviation Administration (FAA) DOT. ACTION: Notice of Intent to Rule on Request to Release Airport Property at the Halifax... Park, GA 30337. The request to release property may be reviewed, by appointment, in person at this...

  10. 78 FR 16911 - Notice of Request To Release Airport Property

    Science.gov (United States)

    2013-03-19

    ... Federal Aviation Administration Notice of Request To Release Airport Property AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of intent to rule on request to release airport property at the Ankeny..., Kansas City, MO 64106, (816) 329-2644, lynn.martin@faa.gov . The request to release property may...

  11. 77 FR 58438 - Notice of Request To Release Airport Property

    Science.gov (United States)

    2012-09-20

    ... Federal Aviation Administration Notice of Request To Release Airport Property AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of Intent to Rule on Request to Release Airport Property at the Meade..., Kansas City, MO 64106, (816) 329-2644, lynn.martin@faa.gov . The request to release property may...

  12. 78 FR 49790 - Notice of Request To Release Airport Property

    Science.gov (United States)

    2013-08-15

    ... Federal Aviation Administration Notice of Request To Release Airport Property AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of intent to rule on request to release airport property at the Ottumwa..., MO 64106, (816) 329-2644, lynn.martin@faa.gov . The request to release property may be reviewed,...

  13. A Geometric Fuzzy-Based Approach for Airport Clustering

    Directory of Open Access Journals (Sweden)

    Maria Nadia Postorino

    2014-01-01

    Full Text Available Airport classification is a common need in the air transport field due to several purposes—such as resource allocation, identification of crucial nodes, and real-time identification of substitute nodes—which also depend on the involved actors’ expectations. In this paper a fuzzy-based procedure has been proposed to cluster airports by using a fuzzy geometric point of view according to the concept of unit-hypercube. By representing each airport as a point in the given reference metric space, the geometric distance among airports—which corresponds to a measure of similarity—has in fact an intrinsic fuzzy nature due to the airport specific characteristics. The proposed procedure has been applied to a test case concerning the Italian airport network and the obtained results are in line with expectations.

  14. Analysis of the Capacity Potential of Current Day and Novel Configurations for New York's John F. Kennedy Airport

    Science.gov (United States)

    Glaab, Patricia; Tamburro, Ralph; Lee, Paul

    2016-01-01

    In 2015, a series of systems analysis studies were conducted on John F. Kennedy Airport in New York (NY) in a collaborative effort between NASA and the Port Authority of New York and New Jersey (PANYNJ). This work was performed to build a deeper understanding of NY airspace and operations to determine the improvements possible through operational changes with tools currently available, and where new technology is required for additional improvement. The analysis was conducted using tool-based mathematical analyses, video inspection and evaluation using recorded arrival/departure/surface traffic captured by the Aerobahn tool (used by Kennedy Airport for surface metering), and aural data archives available publically through the web to inform the video segments. A discussion of impacts of trajectory and operational choices on capacity is presented, including runway configuration and usage (parallel, converging, crossing, shared, independent, staggered), arrival and departure route characteristics (fix sharing, merges, splits), and how compression of traffic is staged. The authorization in March of 2015 for New York to use reduced spacing under the Federal Aviation Administration (FAA) Wake Turbulence Recategorization (RECAT) also offers significant capacity benefit for New York airports when fully transitioned to the new spacing requirements, and the impact of these changes for New York is discussed. Arrival and departure capacity results are presented for each of the current day Kennedy Airport configurations. While the tools allow many variations of user-selected conditions, the analysis for these studies used arrival-priority, no-winds, additional safety buffer of 5% to the required minimum spacing, and a mix of traffic typical for Kennedy. Two additional "novel" configurations were evaluated. These configurations are of interest to Port Authority and to their airline customers, and are believed to offer near-term capacity benefit with minimal operational and

  15. Dynamic stochastic optimization models for air traffic flow management

    Science.gov (United States)

    Mukherjee, Avijit

    This dissertation presents dynamic stochastic optimization models for Air Traffic Flow Management (ATFM) that enables decisions to adapt to new information on evolving capacities of National Airspace System (NAS) resources. Uncertainty is represented by a set of capacity scenarios, each depicting a particular time-varying capacity profile of NAS resources. We use the concept of a scenario tree in which multiple scenarios are possible initially. Scenarios are eliminated as possibilities in a succession of branching points, until the specific scenario that will be realized on a particular day is known. Thus the scenario tree branching provides updated information on evolving scenarios, and allows ATFM decisions to be re-addressed and revised. First, we propose a dynamic stochastic model for a single airport ground holding problem (SAGHP) that can be used for planning Ground Delay Programs (GDPs) when there is uncertainty about future airport arrival capacities. Ground delays of non-departed flights can be revised based on updated information from scenario tree branching. The problem is formulated so that a wide range of objective functions, including non-linear delay cost functions and functions that reflect equity concerns can be optimized. Furthermore, the model improves on existing practice by ensuring efficient use of available capacity without necessarily exempting long-haul flights. Following this, we present a methodology and optimization models that can be used for decentralized decision making by individual airlines in the GDP planning process, using the solutions from the stochastic dynamic SAGHP. Airlines are allowed to perform cancellations, and re-allocate slots to remaining flights by substitutions. We also present an optimization model that can be used by the FAA, after the airlines perform cancellation and substitutions, to re-utilize vacant arrival slots that are created due to cancellations. Finally, we present three stochastic integer programming

  16. Airport electric vehicle powered by fuel cell

    Science.gov (United States)

    Fontela, Pablo; Soria, Antonio; Mielgo, Javier; Sierra, José Francisco; de Blas, Juan; Gauchia, Lucia; Martínez, Juan M.

    Nowadays, new technologies and breakthroughs in the field of energy efficiency, alternative fuels and added-value electronics are leading to bigger, more sustainable and green thinking applications. Within the Automotive Industry, there is a clear declaration of commitment with the environment and natural resources. The presence of passenger vehicles of hybrid architecture, public transport powered by cleaner fuels, non-aggressive utility vehicles and an encouraging social awareness, are bringing to light a new scenario where conventional and advanced solutions will be in force. This paper presents the evolution of an airport cargo vehicle from battery-based propulsion to a hybrid power unit based on fuel cell, cutting edge batteries and hydrogen as a fuel. Some years back, IBERIA (Major Airline operating in Spain) decided to initiate the replacement of its diesel fleet for battery ones, aiming at a reduction in terms of contamination and noise in the surrounding environment. Unfortunately, due to extreme operating conditions in airports (ambient temperature, intensive use, dirtiness, …), batteries suffered a very severe degradation, which took its toll in terms of autonomy. This reduction in terms of autonomy together with the long battery recharge time made the intensive use of this fleet impractical in everyday demanding conditions.

  17. Flight Schedule Recovery under Uncertain Airport Capacity

    Institute of Scientific and Technical Information of China (English)

    Zhu Bo; Zhu Jinfu

    2016-01-01

    Airlines adj ust their flight schedules to satisfy more stringent airport capacity constraints caused by in-clement weather or other unexpected disruptions.The problem will be more important and complicated if uncertain disruptions occur in hub airports.A two-stage stochastic programming model was established to deal with the real-time flight schedule recovery and passenger re-accommodation problem.The first-stage model represents the flight re-timing and re-fleeting decision in current time period when capacity information is deterministic,while the sec-ond-stage recourse model evaluates the passenger delay given the first-stage solutions when one future scenario is realized.Aiming at the large size of the problem and requirement for quick response,an algorithmic framework combining the sample average approximation and heuristic method was proposed.The computational results indi-cated of that the proposed method could obtain solutions with around 5% optimal gaps,and the computing time was linearly positive to the sample size.

  18. Low-Cost Carriers, Local Economy and Tourism Development at Four Portuguese Airports. A Model of Cost–Benefit Analysis

    Directory of Open Access Journals (Sweden)

    Vânia Costa

    2015-12-01

    Full Text Available The liberalisation of air transport created a new era in the sector. The entry of low-cost carriers triggered dynamism and consequently changed the behaviours of the demand and supply of air transport services. The volume of traffic at Portuguese airports increased from 17 million passengers in 2002 to more than 30 million in 2012, representing cumulative growth of 75%. The commitment to low-cost carriers (LCCs was a determining factor for this growth in that, in 2012, these carriers recorded a market share of 33%. This study aims to analyse the evolution of LCC air traffic in Portugal and its impact on regional economic development. Through a model of cost–benefit analysis, we determine the costs, benefits and net welfare in the developmet of the region driven by the LCC routes of 4 Portuguese airports, Faro, Lisbon, Funchal and Porto, between 2005 and 2012. The methodology proves the existence of a positive net impact driven by LCCs on the local economy, directly through job creation and increased consumption in the tourism sector and indirectly by the increased demand from other sectors.

  19. 77 FR 59703 - Environmental Impact Statement; Taos Regional Airport, Taos, NM

    Science.gov (United States)

    2012-09-28

    ... Federal Aviation Administration Environmental Impact Statement; Taos Regional Airport, Taos, NM AGENCY...) for the ``Taos Regional Airport, Airport Layout Plan Improvements'' Environmental Impact Statement... requested the FAA to approve revisions to its Airport Layout Plan (ALP) to reflect and allow construction...

  20. 78 FR 15804 - Waiver of Aeronautical Land-Use Assurance: Rolla National Airport (VIH), Rolla, MO

    Science.gov (United States)

    2013-03-12

    ... Federal Aviation Administration Waiver of Aeronautical Land-Use Assurance: Rolla National Airport (VIH... airport property at the Rolla National Airport (VIH) from aeronautical use to non-aeronautical for revenue... Airport (VIH) is proposing the release of one parcel, of 10 acres, more or less from aeronautical to...

  1. 77 FR 19410 - Notice of Schedule Information Submission Deadline for O'Hare International Airport, San...

    Science.gov (United States)

    2012-03-30

    ... Airport, 73 FR 3510 (Jan. 18, 2008) as amended 76 FR 18620 (Apr. 4, 2011); Operating Limitations at Newark Liberty International Airport, 73 FR 29550 (May 21, 2008) as amended 76 FR 18618 (Apr. 4, 2011). The FAA...'s John F. Kennedy International Airport (JFK), and Newark Liberty International Airport (EWR)...

  2. 78 FR 19356 - Notice of Schedule Information Submission Deadline for O'Hare International Airport, San...

    Science.gov (United States)

    2013-03-29

    ... International Airport, 73 FR 3510 (Jan. 18, 2008) as amended 76 FR 18620 (Apr. 4, 2011); Operating Limitations at Newark Liberty International Airport, 73 FR 29550 (May 21, 2008) as amended 76 FR 18618 (Apr. 4...'s John F. Kennedy International Airport (JFK), and Newark Liberty International Airport (EWR)...

  3. An Evaluation of the Importance of Military Associations at Civil Airports

    Science.gov (United States)

    Clark, Patti J.

    2010-01-01

    Today there are over 1,500 public-use airports in the United States. Each of these airports provides a service to the surrounding community, whether in the form of a general aviation or commercial air service facility. An airport is dependent on many facets of the local government infrastructure for support services. Also, the airports have ties…

  4. 48 CFR 3036.570 - Special precautions for work at operating airports.

    Science.gov (United States)

    2010-10-01

    ... work at operating airports. Where any acquisition will require work at an operating airport, insert the clause at (HSAR) 48 CFR 3052.236-70, Special Precautions for Work at Operating Airports, in solicitations... work at operating airports. 3036.570 Section 3036.570 Federal Acquisition Regulations System...

  5. 14 CFR 105.23 - Parachute operations over or onto airports.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Parachute operations over or onto airports... Parachute operations over or onto airports. No person may conduct a parachute operation, and no pilot in... any airport unless— (a) For airports with an operating control tower: (1) Prior approval has...

  6. 14 CFR 382.99 - What agreements must carriers have with the airports they serve?

    Science.gov (United States)

    2010-01-01

    ... airports they serve? 382.99 Section 382.99 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF... the airports they serve? (a) As a carrier, you must negotiate in good faith with the airport operator of each U.S. airport described in § 382.95(b) to ensure the provision of lifts for boarding...

  7. 14 CFR 135.395 - Large nontransport category airplanes: Landing limitations: Alternate airports.

    Science.gov (United States)

    2010-01-01

    ...: Landing limitations: Alternate airports. 135.395 Section 135.395 Aeronautics and Space FEDERAL AVIATION... category airplanes: Landing limitations: Alternate airports. No person may select an airport as an alternate airport for a large nontransport category airplane unless that airplane (at the weight...

  8. 77 FR 55896 - Notice of Release Effecting Federal Grant Assurance Obligations Due to Airport Layout Plan...

    Science.gov (United States)

    2012-09-11

    ... Due to Airport Layout Plan Revision at Mather Airport, Sacramento, CA AGENCY: Federal Aviation... Administration (FAA) proposes to rule and invites public comment on the application for an Airport Layout Plan... Force to the County. As a result, the existing Airport Layout Plan will be revised to delete the...

  9. Quantification of the impact of aircraft traffic emissions on tropospheric ozone over Paris area

    Science.gov (United States)

    Pison, Isabelle; Menut, Laurent

    Accurate estimations of the emissions of primary pollutants are crucial for the modeling of photo-oxidants' concentrations. For a majority of chemistry-transport models (CTMs), these emissions are taken into account near the surface only. They are expressed as surface fluxes and represent surface activities such as traffic, industries or biogenic processes. However, in the vicinity of large cities, commercial aircraft emissions represent a nonnegligible source, located both at the surface and at altitude, including landing and take-off of aircraft within the boundary layer. This is the case of Paris where one national airport (Le Bourget) and two international airports (Roissy-Charles-de-Gaulle and Orly) are located less than 30 km away from the city center. This study presents the first-model analysis of the impact of aircraft emissions on photo-oxidant concentrations over the Paris area. Using a three-dimensional aircraft emission inventory, we compare ozone surface concentrations obtained with and without these emissions by running the CTM CHIMERE during the second Intensive Observation Period of the ESQUIF project. The simulated differences enable us to estimate the impact of aircraft traffic emissions on ozone surface concentrations in and around the city. The results showed that the maximum impact, which consists in a fast ozone titration by NO near the airports within the surface layer, occurs during the night. In remote areas and at altitude, adding new emissions enhanced photo-chemistry during the afternoon. In order to estimate the impact of the uncertainty of our inventory, aircraft emitted masses of volatile organic compounds (VOCs) and NO x are perturbed. The results showed that NO x air traffic emissions have a more important impact than VOC emissions, particularly during the night and near the sources. Nevertheless, these variations of air traffic emissions do not change previous conclusions.

  10. Strategic Noise Mapping of Herakleion: The Aircraft Noise Impact as a factor of the Int. Airport relocation

    Directory of Open Access Journals (Sweden)

    Vogiatzis Konstantinos

    2014-09-01

    Full Text Available In the framework of the European Directive 2002/49/EC, the city of Herakleion in Crete Island (Greece recently completed (2013 its Strategic Noise Map (SNM and relevant Noise Action Plan (NAP. Strategic noise mapping and action plans are important tools to define the main strategies to reduce noise exposure of residents and introduce and preserve "quite zones". Within this framework and as a part of the Herakleion city Strategic Noise Mapping general a specific analysis was introduced in the urban area of Alikarnassos (east part of the city adjacent to the International Airport “Nikos Kazantzakis”. The 2nd biggest airport in Greece, airport is proposed to be relocated in Kastelli area (some 37 km south of the Herakleion city centre, far away from dense populated areas, within the next decade but in the mean time, air traffic (take of, taxi and landing procedures, especially during the extended spring and summer period, are affecting the city. This paper analyzes the extended acoustic measurement monitoring program and the modelling of environmental noise levels within the city’s SNM introducing - state of the art - qualitative surveys on the sound perception and noise annoyance by the residents as well as in depth analysis of the urban and architectural tissue. All these results have been transcribed in several maps introducing a very comprehensive evaluation tool towards an efficient noise action plan leading to the eventual relocation of the airport. This paper presents the main results of this research aiming to the evaluation of the inffluence at the inhabitants’ sonic comfort from aircraft operation.

  11. Traffic Light Detection

    DEFF Research Database (Denmark)

    Philipsen, Mark Philip; Jensen, Morten Bornø; Møgelmose, Andreas

    2015-01-01

    Traffic light recognition (TLR) is an integral part of any intelligent vehicle, which must function in the existing infrastructure. Pedestrian and sign detection have recently seen great improvements due to the introduction of learning based detectors using integral channel features. A similar push...... database is collected based on footage from US roads. The database consists of both test and training data, totaling 46,418 frames and 112,971 annotated traffic lights, captured in continuous sequences under a varying light and weather conditions. The learning based detector achieves an AUC of 0.4 and 0...

  12. Generalized Deterministic Traffic Rules

    CERN Document Server

    Fuks, H; Fuks, Henryk; Boccara, Nino

    1997-01-01

    We study a family of deterministic models for highway traffic flow which generalize cellular automaton rule 184. This family is parametrized by the speed limit $m$ and another parameter $k$ that represents a ``degree of aggressiveness'' in driving, strictly related to the distance between two consecutive cars. We compare two driving strategies with identical maximum throughput: ``conservative'' driving with high speed limit and ``aggressive'' driving with low speed limit. Those two strategies are evaluated in terms of accident probability. We also discuss fundamental diagrams of generalized traffic rules and examine limitations of maximum achievable throughput. Possible modifications of the model are considered.

  13. Convenient Airports: Point of View of the Passengers

    Science.gov (United States)

    Magri, Adival Aparecido, Jr.; Alves, Claudio Jorge Pinto

    2003-01-01

    The competition among airlines or among airports aiming at to increase the demand for its services has been more and more incited. Knowledge the perception of the users for the offered services means to meet the customer's needs and expectations in order either to keep the customer, and therefore keep a significant advantage over competitors. The passenger of the air transportation wants rapidity, security and convenience. Convenience can be translated by comfort that the passenger wants for the price that he can pay. In this paper had been identified. as a result of a survey achieved in six Brazilian airports during 2002, the best indicators in the passenger's perception. These indicators among any others were listed m the handbook of Airports Council International (ACI). Distinctive perceptions were observed among passengers with different travel motivations. This survey had been carried through in the airports of Brasilia, Porto Alegre, Salvador. Fortaleza, Curitiba and Bel6m. Considering this survey we can identified the most attractive airport among them. This work is a way to help improve quality of service, in particular, m these six airports of the Brazilian network. The results should be published and made available to all the parties concerned (airport authority, airlines and service providers) and should lead to corrective action when the passenger is not satisfied with the service.

  14. 2013 Traffic Safety Culture Index

    Science.gov (United States)

    ... death in the United States. 2013 Traffic Safety Culture Index January 2014 607 14th Street, NW, Suite ... org | 202-638-5944 Title 2013 Traffic Safety Culture Index (January 2014) About the Sponsor AAA Foundation ...

  15. The FAA Plans and Programs for the Future Airport and Air Traffic control System.

    Science.gov (United States)

    1980-11-13

    have been effectively resolved through minor software design changes, contrary to self-serving charges by the controllers’ union, the number of...improvements can be achieved. You will hear more later on about the computer and display replacement program. (VU-GRAPH -- ETABS ) o Other work in advanced...tabular weather uata t,’ the controllers, the Electronic Tabular Display Subsystem ( ETABS ) and the Terminal Information Display System (TIDS) will be used

  16. A 3D simulation case study of airport air traffic handling

    NARCIS (Netherlands)

    H. de Swaan Arons

    1996-01-01

    textabstractModern Windows-based simulation packages bring simulation within reach of decision-makers. The use of graphics enables the manager to observe an animation of the simulated reality, to focus on the essentials of the model without the need to bother about implementation details. In most ap

  17. Take control of your 802.11n airport network

    CERN Document Server

    Fleishman, Glenn

    2009-01-01

    Make your 802.11n-based AirPort network fast, reliable, and secure! Find real-world advice from Wi-Fi wizard Glenn Fleishman on setting up the 802.11n models of Apple's AirPort Express, AirPort Extreme, and Time Capsule, with full information about the simultaneous dual-band models introduced in early 2009. You'll get help with all the special networking details, such as how to set the best band and channel for your network, use pre-802.11n base stations and clients without hurting performance, set up complex Int

  18. Airports offer unrealized potential for alternative energy production.

    Science.gov (United States)

    DeVault, Travis L; Belant, Jerrold L; Blackwell, Bradley F; Martin, James A; Schmidt, Jason A; Wes Burger, L; Patterson, James W

    2012-03-01

    Scaling up for alternative energy such as solar, wind, and biofuel raises a number of environmental issues, notably changes in land use and adverse effects on wildlife. Airports offer one of the few land uses where reductions in wildlife abundance and habitat quality are necessary and socially acceptable, due to risk of wildlife collisions with aircraft. There are several uncertainties and limitations to establishing alternative energy production at airports, such as ensuring these facilities do not create wildlife attractants or other hazards. However, with careful planning, locating alternative energy projects at airports could help mitigate many of the challenges currently facing policy makers, developers, and conservationists.

  19. Chaotic Control of Network Traffic

    Institute of Scientific and Technical Information of China (English)

    YANG Tan; CUI Yi-Dong; JIN Yue-Hui; CHENG Shi-Duan

    2009-01-01

    A method of chaotic control on network traffic is presented.By this method,the chaotic network traffic can be controlled to a pre-assigned equilibrium point according to chaotic prediction and the largest Lyapunov exponent of the traffic on congested link is reduced,thereby the probability of traffic burst and network congestion can be reduced.Numerical examples show that this method is effective.

  20. The Classroom Traffic Jam

    Science.gov (United States)

    Edwards, Arthur W.

    1977-01-01

    The importance of energy conservation is developed in this simulation. Children draw an automobile and then are asked to drive it through the classroom roadways. When a traffic jam results, students offer ways to eliminate it. The importance of mass transportation and car pools is stressed by the teacher. (MA)

  1. Cyclists' Injuries in Traffic

    Directory of Open Access Journals (Sweden)

    Eduard Missoni

    2004-01-01

    Full Text Available Among numerous participants in road traffic there are alsothe cyclists. Cycling has become during the recent years one ofthe major components of the modem living, even in Croatia. Inalmost all the developed countries of the world, cycling isemphasised as an activity which improves health and contributesto the improvement of overall physical fitness and environmentalprotection. During the period between 1 January 1996and 31 December 1999, an analysis of the number of cyclist accidentsin road traffic was carried out. Special attention waspaid to the number of injured cyclists. In 1996, in road traffic,there were 1,218 cyclist accidents in which 912 (74.9% cyclistswere injured. In 1997, there were 1,146 incidents and accidents,with 854 (74.5% injured persons. In 1998, there were 1,167accidents, 887 (76.0% injured. In the last study in 1999, thetotal number of cyclist accidents amounted to 1,230, and thenumber of the injured cyclists was 924 (75.1% .Every event resulting in a more or less severe disability is agreat distress and great damage to every injured person as individualas well as for the family and eventually for the society asa whole. This paper recommends certain measures and proceduresthat should substantially reduce the traffic accidents andincidents which involve cyclists.

  2. ITSA: Internet Traffic Statistics Archive

    NARCIS (Netherlands)

    Hoogesteger, Martijn; Oliveira Schmidt, de Ricardo; Pras, Aiko

    2016-01-01

    Motivated by the fact that comprehensive and long term Internet traffic measurements can be hard to obtain, we have proposed and developed the Internet Traffic Statistics Archive (ITSA). Since 2013, ITSA concentrates reports on high-level statistics of Internet traffic worldwide. Examples of statist

  3. Pedalcylists. Traffic Safety Facts, 2000.

    Science.gov (United States)

    National Highway Traffic Safety Administration (DOT), Washington, DC.

    This document provides statistical information on traffic accidents involving U.S. bicyclists. Data include: (1) trends in pedalcyclist and total traffic fatalities, 1990-2000; (2) non-occupant traffic fatalities, 1990-2000; (3) pedalcyclists killed and injured, and fatality and injury rates, by age and sex, 2000; and (4) pedalcyclist traffic…

  4. Airports and Airfields, Airport runway/taviway linework as developed during 1996 planimetric and orthoimagery project., Published in 1996, Vilas County Land Information/Mapping.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Airports and Airfields dataset, was produced all or in part from Orthoimagery information as of 1996. It is described as 'Airport runway/taviway linework as...

  5. Airports and Airfields, Airports in 18 county region in South Georgia, Published in 1999, 1:7200 (1in=600ft) scale, Southern Georgia Regional Commission.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Airports and Airfields dataset, published at 1:7200 (1in=600ft) scale as of 1999. It is described as 'Airports in 18 county region in South Georgia'. Data by...

  6. Effects of Traffic Lights on CA Traffic Model

    Institute of Scientific and Technical Information of China (English)

    SuweiFENG; GuoqingGU

    1997-01-01

    Cellular automaton traffic models can include various factors in traffic system with simple regulations and the corresponding computations and simulations are rather convenient and effective.In this paper,the Biham-Middleton-Levine model(briefly saying the BML model)is improved by removing its limitation of synchronized change of traffic lights.In new model,the traffic light at each crossing could arbitrarily change its starting time and tempo of variation and hence the model could more realistically describe the influence of traffic lights on the performance of traffic systems.The cases of traffic light with unsynchronized starting time and different tempo of variation are simulated in this paper.

  7. The economic impact of South Africa’s international airports

    Directory of Open Access Journals (Sweden)

    Rose Luke

    2010-11-01

    Full Text Available Infrastructure is strongly linked to economic growth and plays a major role in providing greater mobility and choice, leading to an improvement in incomes and welfare. Transport infrastructure such as highways, bridges, ports, airports and railways is critical in achieving economic growth. If the supply of these facilities does not keep up with rising demand, the cost of moving goods will increase, and there will be a downward pressure on profits and growth. Airports play a critical role in generating employment within an economy, creating wealth, contributing to the tax base, stimulating tourism and contributing to world trade. While the latter two are less easily measured, it is possible to determine a base impact that an airport has on an economy by measuring the direct and indirect gross domestic product, employment and taxation impacts. This study quantifies these for the three main international airports in South Africa.

  8. Airports and Airfields, Published in 2007, Churchill County, NV.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Airports and Airfields dataset as of 2007. Data by this publisher are often provided in State Plane coordinate system; in a Not Sure projection; The extent of...

  9. US Helicopter Expands Service to Newark Liberty International Airport

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ US Helicopter Corporation ("US Helicopter") (OTC Bulletin Board: USHP) and Continental Airlines (NYSE: CAL)announced a partnership to provide eight-minute shuttle service between Manhattan and Newark Liberty International Airport beginning Dec.18, 2006.

  10. Optimal assignment of incoming flights to baggage carousels at airports

    DEFF Research Database (Denmark)

    Barth, Torben C.

    The problem considered in this report is an assignment problem occurring at airports. This problem concerns the assignment of baggage carousels in baggage claim halls to arriving aircraft (baggage carousel assignment problem). This is a highly dynamic problem since disruptions frequently occur...... during operations. We introduce a basic static model that can be adapted to the layout of different airports. Afterwards we show how a decision support system based on a MIP-model can be designed in a dynamic real world environment. The system supports the decisions of the dispatcher during daily...... operations. Computational results for a real world problem at Frankfurt Airport are presented. At Frankfurt Airport the suggested solution method was successfully implemented and is running now for over half an year. The experiences show that the system increases the quality of the dispatching process...

  11. A World Expo Campaign Launched At Shanghai Airports

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    <正>The Shanghai Airport Group Company held a meeting on August 22, announcing a decision on renaming its spiritual civilization construction leading group into the Spiritual Civilization Construction Commission. It will adopt an action programme for the years

  12. Report of Accomplishments under the Airport Improvement Program.

    Science.gov (United States)

    2014-09-26

    maintaining essential air transportation and preventing unjust and . discriminatory practices; - Special emphasis should be given to reliever airports and...exceed 50 percent. Environmental Considerations The Federal Aviation Administration (FAA) considers and weighs environmental factors in evaluating

  13. 78 FR 55330 - Policy Regarding Airport Rates and Charges

    Science.gov (United States)

    2013-09-10

    ... Airport proprietors must retain the ability to respond to local conditions with flexibility and innovation... movements for each of the two preceding years. 4. Planning and Forecasting Information. (a) To the...

  14. Global Map: Airports of the United States - Direct Download

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This map layer includes Global Map data showing airports in the United States, Puerto Rico and the U.S. Virgin Islands. The data are a modified version of the...

  15. Software Tool for Significantly Increasing Airport Throughput Project

    Data.gov (United States)

    National Aeronautics and Space Administration — NASA's Next Generation Air Transportation System (NextGen) Airportal effort seeks to optimize aircraft surface movements through approaches that could double or...

  16. Airport Configuration Planner with Optimized Weather Forecasts Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The core planning algorithms to support the NGATS concepts will need accurate predictions of airport configuration over planning horizons of six hours or more. Such...

  17. Microscopic Analysis and Modeling of Airport Surface Sequencing Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The complexity and interdependence of operations on the airport surface motivate the need for a comprehensive and detailed, yet flexible and validated analysis and...

  18. The influence of passenger demographics on airport attribute evaluation

    Directory of Open Access Journals (Sweden)

    Stephen Carstens

    2012-11-01

    Full Text Available It is imperative for airport operators and airlines to have a clear understanding of the factors which influence the passenger’s decision with regard to which airport/airline combination to use in a multi-airport scenario. Interactions between demographic variables, such as gender and purpose of travel, and the choice attributes in the decision-making process exist. The extent to which specific attributes influence the passenger’s decision could be invaluable to service providers (airport operators and airlines in allocating and employing limited resources. The purpose of this article is to investigate the extent of the interactions between passenger demographics and attribute evaluation by taking into account the ordinal nature of the measurement scale.

  19. Allocation of Ground Handling Resources at Copenhagen Airport

    DEFF Research Database (Denmark)

    Justesen, Tor Fog

    operations is imperative for the viability and continued development of both individual airports and the air transportation industry in general. This thesis gives a general introduction to the management of airport operations. It describes the main airport processes and optimization problems...... that these processes give rise to. The primary focus is on ground handling resource allocation problems, it looks in detail at the following problems: the check-in counter allocation problem, the baggage make-up position problem, the tactical stand and gate allocation problem, the operational stand and gate allocation...... to generate appropriate initial variables, enabling the heuristic to efficiently find near-optimal and operationally valid solutions. The work described in this thesis was carried out in the context of an Industrial PhD project at Copenhagen Airport in collaboration with the Technical University of Denmark...

  20. Novel Surveillance Technologies for Airport Ramp Area Operations Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The objective of the current research is to develop the concept, algorithms and software necessary for enabling a novel surveillance system for airports ramp areas....

  1. Analysis of efficiency of the Brazilian international airports

    Directory of Open Access Journals (Sweden)

    Marina Rodriguez Brochado

    2008-07-01

    Brazil. Analysis of correlations was used to select the 0 variable most representative of this system and after that, it was calculated efficiency of the system for classic and inverted the borders by means of model BCC guided for output. Finally, it was possible to identify which improvements are necessary for the inefficient airports, in way to identify which improvements are necessary to operational level to reach the efficiency. Key-words: Data Envelopment Analysis, Efficiency, Airports.

  2. Modeling the effect of night time penalties on commercial and business flights for regional airport noise and economics: Rotterdam Airport case study

    NARCIS (Netherlands)

    Wan Mohamed, W.M.; Curran, R.; Van der Zwan, F.M.; Roling, P.

    2009-01-01

    Noise is one of the main concerns of airports around the world. Several measures have been taken by regulators to reduce noise at airports. Some of these measures are meant to control noise at major or busy airports; however, certain operational restrictions (quota, curfew, and budget) are also impl

  3. 41 CFR 102-75.400 - Is industrial property located on an airport also considered to be “airport property”?

    Science.gov (United States)

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Is industrial property... Public Airports § 102-75.400 Is industrial property located on an airport also considered to be “airport... is industrial, then the property must be classified as such for disposal without regard to the...

  4. Virtualized Traffic at Metropolitan Scales

    Directory of Open Access Journals (Sweden)

    David eWilkie

    2015-05-01

    Full Text Available Few phenomena are more ubiquitous than traffic, and few are more significant economically, socially, or environmentally. Any virtual reality system, including virtual globes and immersive multi-player worlds that are set in a modern or futuristic setting feature traffic systems. Virtual reality models can also aid in addressing the challenges of real-world traffic systems, the ever-present gridlock and congestion in cities worldwide: traffic engineers and planners can diagnose system instabilities and explore control strategies in virtual worlds reconstructed from available sensor data. To create these systems, road network models need to be created and represented. Traffic needs to be realistically and efficiently simulated. To analyze real-world scenarios, the traffic conditions need to be estimated and reconstructed. To create virtual scenarios, such as simulated cities, traffic needs to be intelligently and efficiently routed.

  5. Modeling traffic on crossroads

    Science.gov (United States)

    Wastavino, L. A.; Toledo, B. A.; Rogan, J.; Zarama, R.; Muñoz, V.; Valdivia, J. A.

    2007-07-01

    A simplified traffic model is studied, consisting of two vehicles traveling through a sequence of crossroads regulated by yield signs. A car approaching a yield sign stops if, in the other street, there is a car closer than a certain distance xtol from the intersection. It is shown that the function which maps the state of the vehicles displays a period doubling transition to chaos. An interesting feature of the dynamics is that for extremely cautious drivers ( xtol too large), the map turns chaotic, thus becoming a potential source of emergent jams. Complex behavior such as the one observed in this simple system seems to be an essential ingredient in traffic patterns, and could be of relevance in studying actual crossroads situations.

  6. Road Traffic Noise

    Science.gov (United States)

    Beckenbauer, Thomas

    Road traffic is the most interfering noise source in developed countries. According to a publication of the European Union (EU) at the end of the twentieth century [1], about 40% of the population in 15 EU member states is exposed to road traffic noise at mean levels exceeding 55 dB(A). Nearly 80 million people, 20% of the population, are exposed to levels exceeding 65 dB(A) during daytime and more than 30% of the population is exposed to levels exceeding 55 dB(A) during night time. Such high noise levels cause health risks and social disorders (aggressiveness, protest, and helplessness), interference of communication and disturbance of sleep; the long- and short-term consequences cause adverse cardiovascular effects, detrimental hormonal responses (stress hormones), and possible disturbance of the human metabolism (nutrition) and the immune system. Even performance at work and school could be impaired.

  7. Dementia and Traffic Accidents

    DEFF Research Database (Denmark)

    Petersen, Jindong Ding; Siersma, Volkert; Nielsen, Connie Thurøe;

    2016-01-01

    BACKGROUND: As a consequence of a rapid growth of an ageing population, more people with dementia are expected on the roads. Little is known about whether these people are at increased risk of road traffic-related accidents. OBJECTIVE: Our study aims to investigate the risk of road traffic......-related accidents for people aged 65 years or older with a diagnosis of dementia in Denmark. METHODS: We will conduct a nationwide population-based cohort study consisting of Danish people aged 65 or older living in Denmark as of January 1, 2008. The cohort is followed for 7 years (2008-2014). Individual's personal...... data are available in Danish registers and can be linked using a unique personal identification number. A person is identified with dementia if the person meets at least one of the following criteria: (1) a diagnosis of the disease in the Danish National Patient Register or in the Danish Psychiatric...

  8. 77 FR 16891 - Notice of Intent To Rule on Request To Release Airport Property at Tulsa International Airport...

    Science.gov (United States)

    2012-03-22

    ... Auto Salvage for use as an automobile salvage yard. Any person may inspect the request by appointment..., 2012. Joseph G. Washington, Acting Manager, Airports Division Office. BILLING CODE 4910-13-P...

  9. Airports and Airfields, airport data set, Published in 2006, 1:1200 (1in=100ft) scale, Washoe County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Airports and Airfields dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from Orthoimagery information as of 2006. It is described as...

  10. Airports and Airfields, airport data set attribute, Published in 2006, 1:1200 (1in=100ft) scale, Washoe County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Airports and Airfields dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from Orthoimagery information as of 2006. It is described as...

  11. Airports and Airfields, Polygons of airport runways, Published in 1995, 1:12000 (1in=1000ft) scale, Cochise County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Airports and Airfields dataset, published at 1:12000 (1in=1000ft) scale, was produced all or in part from Orthoimagery information as of 1995. It is described...

  12. Untieing the Traffic Knot

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Beijing is working to resolve its longtime transportation problems before the 2008 Olympics One traffic jam after another, annoying horns, endless lines of cars,impatient sighs from passengers on an overcrowded bus, the youstomped-on-my-toe quarreling in the subway train, all have led to the unsurprising result that Beijing scored at the tail end of a survey of 287 cities in the category of transport satisfaction in China’s 2006 Report on the Quality of Urban Life.

  13. The Physics of Traffic

    Science.gov (United States)

    Davis, L. Craig

    2006-03-01

    Congestion in freeway traffic is an example of self-organization in the language of complexity theory. Nonequilibrium, first-order phase transitions from free flow cause complex spatiotemporal patterns. Two distinct phases of congestion are observed in empirical traffic data--wide moving jams and synchronous flow. Wide moving jams are characterized by stopped or slowly moving vehicles within the jammed region, which widens and moves upstream at 15-20 km/h. Above a critical density of vehicles, a sudden decrease in the velocity of a lead vehicle can initiate a transition from metastable states to this phase. Human behaviors, especially delayed reactions, are implicated in the formation of jams. The synchronous flow phase results from a bottleneck such as an on-ramp. Thus, in contrast to a jam, the downstream front is pinned at a fixed location. The name of the phase comes from the equilibration (or synchronization) of speed and flow rate across all lanes caused by frequent vehicle lane changes. Synchronous flow occurs when the mainline flow and the rate of merging from an on-ramp are sufficiently large. Large-scale simulations using car-following models reproduce the physical phenomena occurring in traffic and suggest methods to improve flow and mediate congestion.

  14. Effects of traffic noise

    Energy Technology Data Exchange (ETDEWEB)

    Gottlob, D.

    1986-02-01

    One of the main sources of noise is road traffic. In 1984 there were over 25 million cars, 1.2 million lorries, 1.3 million motor cycles and 1.6 million mopeds using our roads. Opinion polls showed that 21% of the population felt that they were affected by traffic noise as a nuisance factor. An outline of the effects of this noise on the affected population is given, illustrated by diagrams. Details about noise emissions (drive-past level) of the different types of vehicles in city traffic are stated and the effects of noise described. The author goes into the nuisance effect (noise is not a physical factor, but a psychosocial one), changes in behaviour (ways of speaking, reduction of stress on households in proportion to rising income and higher educational levels) and the consequences for health (the reaction of the body to noise is primarily a consequence of the psychosomatic organisation of ow bodies). In conclusion, the author deals with the subjective efficiency of noise protection measures. (HWJ).

  15. Assessing Road Traffic Expression

    Directory of Open Access Journals (Sweden)

    Fábio Silva

    2014-12-01

    Full Text Available Road traffic is a problem which is increasing in cities with large population. Unrelated to this fact the number of portable and wearable devices has also been increasing throughout the population of most countries. With this advent, the capacity to monitor and register data about people habits and locations as well as more complex data such as intensity and strength of movements has created an opportunity to contribute to the general wealth and comfort within these environments. Ambient Intelligence and Intelligent Decision Making processes can benefit from the knowledge gathered by these devices to improve decisions on everyday tasks such as deciding navigation routes by car, bicycle or other means of transportation and avoiding route perils. The concept of computational sustainability may also be applied to this problem. Current applications in this area demonstrate the usefulness of real time system that inform the user of certain conditions in the surrounding area. On the other hand, the approach presented in this work aims to describe models and approaches to automatically identify current states of traffic inside cities and use methods from computer science to improve overall comfort and the sustainability of road traffic both with the user and the environment in mind. Such objective is delivered by analyzing real time contributions from those mobile ubiquitous devices to identifying problematic situations and areas under a defined criteria that have significant influence towards a sustainable use of the road transport infrastructure.

  16. 78 FR 7852 - Notice of Intent To Rule on Request To Release Airport Property at the Rocky Mountain...

    Science.gov (United States)

    2013-02-04

    ... Rocky Mountain Metropolitan Airport, Broomfield, CO AGENCY: Federal Aviation Administration (FAA), DOT... public comment on the release of land at the Rocky Mountain Metropolitan Airport under the provisions of..., Manager, Federal Aviation Administration, Northwest Mountain Region, Airports Division, Denver...

  17. Residential exposure to traffic noise and risk for non-hodgkin lymphoma among adults.

    Science.gov (United States)

    Sørensen, Mette; Harbo Poulsen, Aslak; Ketzel, Matthias; Oksbjerg Dalton, Susanne; Friis, Søren; Raaschou-Nielsen, Ole

    2015-10-01

    Exposure to traffic noise may result in stress and sleep disturbances, which have been associated with impairment of the immune system. People with weakened immune systems are known to have a higher risk for non-Hodgkin lymphoma (NHL). We aimed to determine whether traffic noise was associated with risk for NHL in a nationwide case-control study. We identified 2753 cases aged 30-84 years with a primary diagnosis of NHL in Denmark between 1992 and 2010. For each case we selected two random population controls, matched on sex and year of birth. Road traffic and railway noise were calculated, and airport noise was estimated for all present and historical residential addresses of cases and controls from 1987 to 2010. Associations between traffic noise and risk for NHL were estimated using conditional logistic regression, adjusted for disposable income, education, cohabiting status and comorbidity. We found that a 5-year time-weighted mean of road traffic noise above 65 dB was associated with an 18% higher risk for NHL (95% confidence interval (CI) 1.01-1.37) when compared to road traffic noise below 55 dB, whereas for exposure between 55 and 65 dB no association was found (odds ratio: 0.98; 95% CI: 0.88-1.08). In analyzes of NHL subtypes, we found no association between road traffic noise and risk for T-cell lymphoma, whereas increased risks for B-cell lymphoma and unspecified lymphomas were observed at exposures above 65 dB. In conclusion, our nationwide study may indicate that high exposure to traffic noise is associated with higher NHL risk.

  18. Lagrangian Multi-Class Traffic State Estimation

    OpenAIRE

    Yuan, Y.

    2013-01-01

    Road traffic is important to everybody in the world. People travel and commute everyday. For those who travel by cars (or other types of road vehicles), traffic congestion is a daily experience. One essential goal of traffic researchers is to reduce traffic congestion and to improve the whole traffic system operation and the environment. To achieve this goal, we have to first understand prevailing traffic situations, then perform pro-active traffic control and management. The estimation of tr...

  19. Real time traffic models, decision support for traffic management

    OpenAIRE

    Wismans, L.; De Romph, E.; Friso, K.; Zantema, K.

    2014-01-01

    Reliable and accurate short-term traffic state prediction can improve the performance of real-time traffic management systems significantly. Using this short-time prediction based on current measurements delivered by advanced surveillance systems will support decision-making processes on various control strategies and enhance the performance of the overall network. By taking proactive action deploying traffic management measures, congestion may be prevented or its effects limited. An approach...

  20. Traffic Games: Modeling Freeway Traffic with Game Theory.

    Science.gov (United States)

    Cortés-Berrueco, Luis E; Gershenson, Carlos; Stephens, Christopher R

    2016-01-01

    We apply game theory to a vehicular traffic model to study the effect of driver strategies on traffic flow. The resulting model inherits the realistic dynamics achieved by a two-lane traffic model and aims to incorporate phenomena caused by driver-driver interactions. To achieve this goal, a game-theoretic description of driver interaction was developed. This game-theoretic formalization allows one to model different lane-changing behaviors and to keep track of mobility performance. We simulate the evolution of cooperation, traffic flow, and mobility performance for different modeled behaviors. The analysis of these results indicates a mobility optimization process achieved by drivers' interactions.

  1. Traffic Games: Modeling Freeway Traffic with Game Theory

    Science.gov (United States)

    Cortés-Berrueco, Luis E.; Gershenson, Carlos; Stephens, Christopher R.

    2016-01-01

    We apply game theory to a vehicular traffic model to study the effect of driver strategies on traffic flow. The resulting model inherits the realistic dynamics achieved by a two-lane traffic model and aims to incorporate phenomena caused by driver-driver interactions. To achieve this goal, a game-theoretic description of driver interaction was developed. This game-theoretic formalization allows one to model different lane-changing behaviors and to keep track of mobility performance. We simulate the evolution of cooperation, traffic flow, and mobility performance for different modeled behaviors. The analysis of these results indicates a mobility optimization process achieved by drivers’ interactions. PMID:27855176

  2. Particle number concentrations near the Rome-Ciampino city airport

    Science.gov (United States)

    Stafoggia, M.; Cattani, G.; Forastiere, F.; Di Menno di Bucchianico, A.; Gaeta, A.; Ancona, C.

    2016-12-01

    Human exposure to ultrafine particles (UFP) has been postulated to be associated with adverse health effects, and there is interest regarding possible measures to reduce primary emissions. One important source of UFP are airport activities, with aircraft take-offs being the most relevant one. We implemented two measurement campaigns of total particle number concentrations (PNC), a proxy for UFP, near a medium-size airport in central Italy. One-minute PNC averages were collected on June 2011 and January 2012 concurrently with 30-min average meteorological data on temperature and wind speed/direction. Data on minute-specific take-offs and landings were obtained by the airport authorities. We applied statistical regression models to relate PNC data to the presence of aircraft activities while adjusting for time trends and meteorology, and estimated the increases in PNC ±15 min before and after take-offs and landings. We repeated the analyses considering prevalent wind direction and by size of the aircraft. We estimated PNC increases of 5400 particles/cm3/minute during the 15 min before and after take-offs, with a peak of 19,000 particles/cm3/minute within 5 min after take-offs. Corresponding figures for landings were 1300 and 1000 particles, respectively. The highest PNC estimates were obtained when the prevailing wind came from the runway direction, and led to estimated PNC increases of 60,000 particles/cm3/minute within 5 min after take-offs. No main differences were noted from the exhaust of different types of aircrafts. The area surrounding Ciampino airport is densely inhabited, raising concerns about the potential adverse effects of long-term and short-term exposure to airport-borne UFP. A close monitoring of airport activities and emissions is mandatory to reduce the public health impact of the airport on the nearby population.

  3. Gunnison County Airport Terminal solar cooperative agreement

    Energy Technology Data Exchange (ETDEWEB)

    Waller, L. H.; Kreider, J. F.

    1981-01-01

    The results of solar system performance studies carried out on the final construction of a passive space heating system for the Gunnison County Airport Terminal are presented. The principal topic discussed is the economic performance of the system with supporting material on thermal performance and system design. The conclusions of this study, using the methods of computer modeling and life-cycle economics are: (1) the final design passive solar heating system with night insulation will provide, on the average, 41% of the annual heating load for the terminal, (2) the passive system will result in a saving of 154 million Btu per year or, equivalently, 45,122 kWh per year, and (3) over a 40-year period the system is expected to save 3.1 million dollars in heating energy costs after the solar system investment has been paid off. Over the first 20-year period the net savings are approximately $100,000. The simple payback period is 13 years.

  4. Aircraft Noise Perception Study in Brazil: A Perspective on Airport Sustainable Growth and Environmental Awareness

    Science.gov (United States)

    deArantesGomesEller, Rogerio; Urbina, Ligia Maria Soto; Porto, Protogenes Pires

    2003-01-01

    Aircraft noise perception is related to several variables that are tangible and objective, such as the number of operations, flight schedules. Other variables, instead, are more subjective, such as preferences. However, although their elusiveness, they contribute to determine the individuals' perception of this type of externality. Despite the fact that the complaints related to aeronautical noise have been registered since the decade of 50, it has been observed that the perception of noise seems to have grown, especially since the 80's. It has been argued that this change in noise perception has its roots on the accelerated expansion of air traffic. But, it is necessary to point out the important role played on modeling preferences, by the growing environmental conscience and the higher welfare and quality of life standards and expectations. In that context, the main objective of this paper is to study the aeronautical noise perception in the neighborhoods of the Aeroporto Internacional de Sao Paulo - AISP (the biggest airport of South America). Specifically, it analyzes the relationship between aircraft noise perception and social class, which is expected to be positive. Since noise perception is an intangible variable, this study chose as a proxy the value losses of residential properties, caused by aeronautical noise. The variable social class has been measured utilizing average per capita income of the population who live nearby the airport. The comparison of both, the lowest and the highest social class suggests that the relationship between social class and noise perception is positive in the AISP region. Moreover, it was observed that all social classes are very susceptible to aircraft noise annoyance. In fact, the magnitude of the noise perception proxy for both social classes -the residential value losses- was found to be comparable to levels encountered in developed countries.

  5. Metal distribution in urban soil around steel industry beside Queen Alia Airport, Jordan.

    Science.gov (United States)

    Al-Khashman, Omar A; Shawabkeh, Reyad A

    2009-12-01

    The objective of this study was to assess the extent and severity of metal contamination in urban soil around Queen Alia Airport, Jordan. Thirty-two soil samples were collected around steel manufacturing plants located in the Al-Jiza area, south Jordan, around the Queen Alia Airport. The samples were obtained at two depths, 0-10 and 10-20 cm, and were analyzed by atomic absorption spectrophotometry for lead (Pb), zinc (Zn), cadmium (Cd), iron (Fe), copper (Cu) and chromium (Cr) levels. The physicochemical factors believed to affect the mobility of metals in the soil of the study area were also examined, including pH, electrical conductivity, total organic matter, calcium carbonate (CaCO(3)) content and cation exchange capacity. The high concentrations of Pb, Zn and Cd in the soil samples were found to be related to anthropogenic sources, such as the steel manufacturing plants, agriculture and traffic emissions, with the highest concentrations of these metals close to the site of the steel plants; in contrast the concentration of Cr was low in the soil sampled close to the steel plants. The metals were concentrated in the surface soil, and concentrations decreased with increasing depth, reflecting the physical properties of the soil and its alkaline pH. The mineralogical composition of the topsoil, identified by X-ray diffraction, was predominantly quartz, calcite, dolomite and minor minerals, such as gypsum and clay minerals. Metal concentrations were compared using one-way analysis of variance (ANOVA) to compute the statistical significance of the mean. The results of the ANOVA showed significant differences between sites for Pb, Cd and Cu, but no significant differences for the remaining metals tested. Factor analysis revealed that polluted soil occurs predominantly at sites around the steel plants and that there is no significant variation in the characteristics of the unpolluted soil, which are uniform in the study area.

  6. Road traffic noise and incident myocardial infarction: a prospective cohort study.

    Directory of Open Access Journals (Sweden)

    Mette Sørensen

    Full Text Available BACKGROUND: Both road traffic noise and ambient air pollution have been associated with risk for ischemic heart disease, but only few inconsistent studies include both exposures. METHODS: In a population-based cohort of 57 053 people aged 50 to 64 years at enrolment in 1993-1997, we identified 1600 cases of first-ever MI between enrolment and 2006. The mean follow-up time was 9.8 years. Exposure to road traffic noise and air pollution from 1988 to 2006 was estimated for all cohort members from residential address history. Associations between exposure to road traffic noise and incident MI were analysed in a Cox regression model with adjustment for air pollution (NO(x and other potential confounders: age, sex, education, lifestyle confounders, railway and airport noise. RESULTS: We found that residential exposure to road traffic noise (L(den was significantly associated with MI, with an incidence rate ratio IRR of 1.12 per 10 dB for both of the two exposure windows: yearly exposure at the time of diagnosis (95% confidence interval (CI: 1.02-1.22 and 5-years time-weighted mean (95% CI: 1.02-1.23 preceding the diagnosis. Visualizing of the results using restricted cubic splines showed a linear dose-response relationship. CONCLUSIONS: Exposure to long-term residential road traffic noise was associated with a higher risk for MI, in a dose-dependent manner.

  7. Framework for Traffic Congestion Management

    OpenAIRE

    Mahmud Hassan TALUKDAR

    2013-01-01

    Traffic Congestion is one of many serious global problems in all great cities resulted from rapid urbanization which always exert negative externalities upon society. The solution of traffic congestion is highly geocentric and due to its heterogeneous nature, curbing congestion is one of the hard tasks for transport planners. It is not possible to suggest unique traffic congestion management framework which could be absolutely applied for every great cities. Conversely, it is quite feasible t...

  8. Traffic forecasts ignoring induced demand

    DEFF Research Database (Denmark)

    Næss, Petter; Nicolaisen, Morten Skou; Strand, Arvid

    2012-01-01

    Although the phenomenon of induced traffic has been theorized for more than 60 years and is now widely accepted among transport researchers, the traffic-generating effects of road capacity expansion are still often neglected in transport modelling. Such omission can lead to serious bias in the as......Although the phenomenon of induced traffic has been theorized for more than 60 years and is now widely accepted among transport researchers, the traffic-generating effects of road capacity expansion are still often neglected in transport modelling. Such omission can lead to serious bias...

  9. Road traffic noise and stroke

    DEFF Research Database (Denmark)

    Sørensen, Mette; Hvidberg, Martin; Andersen, Zorana J

    2011-01-01

    Epidemiological studies suggest that long-term exposure to road traffic noise increases the risk of cardiovascular disorders. The aim of this study was to investigate the relation between exposure to road traffic noise and risk for stroke, which has not been studied before.......Epidemiological studies suggest that long-term exposure to road traffic noise increases the risk of cardiovascular disorders. The aim of this study was to investigate the relation between exposure to road traffic noise and risk for stroke, which has not been studied before....

  10. Road traffic injuries

    Institute of Scientific and Technical Information of China (English)

    WANG Zheng-guo 王正国

    2003-01-01

    @@ The appearance of cars has raised materialistic civilization and living standard to an unprecedented level. Today, it is hard to imagine how we human beings can live without cars.Yet, motor vehicles can cause a great number of deaths and injuries as well as considerable economic losses, which have constituted the global burden. Understanding of the occurrence and development of road traffic injuries will contribute to the prevention and control of crash and to the implementation of "everybody has the right to enjoy health" proposed by WHO.

  11. Inaccuracy in traffic forecasts

    DEFF Research Database (Denmark)

    Flyvbjerg, Bent; Holm, Mette K. Skamris; Buhl, Søren Ladegaard

    2006-01-01

    that forecasters generally do a poor job of estimating the demand for transportation infrastructure projects. The result is substantial downside financial and economic risk. Forecasts have not become more accurate over the 30-year period studied. If techniques and skills for arriving at accurate demand forecasts...... forecasting. Highly inaccurate traffic forecasts combined with large standard deviations translate into large financial and economic risks. But such risks are typically ignored or downplayed by planners and decision-makers, to the detriment of social and economic welfare. The paper presents the data...

  12. Real time traffic models, decision support for traffic management

    NARCIS (Netherlands)

    Wismans, L.J.J.; Romph, de E.; Friso, K.; Zantema, K.

    2014-01-01

    Reliable and accurate short-term traffic state prediction can improve the performance of real-time traffic management systems significantly. Using this short-time prediction based on current measurements delivered by advanced surveillance systems will support decision-making processes on various con

  13. Real Time Traffic Models, Decision Support for Traffic Management

    NARCIS (Netherlands)

    Wismans, L.; De Romph, E.; Friso, K.; Zantema, K.

    2014-01-01

    Reliable and accurate short-term traffic state prediction can improve the performance of real-time traffic management systems significantly. Using this short-time prediction based on current measurements delivered by advanced surveillance systems will support decision-making processes on various con

  14. Traffic Infrastructure in the Development of the Croatian Traffic System

    Directory of Open Access Journals (Sweden)

    Damir Šimulčik

    2012-10-01

    Full Text Available The absence of a long-term traffic policy and of the policyof financing the constntction and maintenance of traffic infrastructurefacilities, represents a synthesis of numerous unresolvedrelations whose negative effects are felt in the overalleconomic and traffic development and consequently theevaluation of national potentials in the field. Adverse aspectcaused by the lack of a clear and feasible policy of financing thetraffic infrastructure facilities, is also a result of not having definedan adequate traffic policy, programme and strategiccourses of development, nor financing models that would be inaccordance with the market and economy system.This indicates that it is necessary to determine a policy forfinancing the constntction and maintenance of traffic infrastntcture,which has to be based on scientific development,team work, availability of plans and programmes to scientistsand experts, determined methodology based on marketing andeconomic logic in defining the programme and strategic tasksand assignments so as to make them feasible.In the near future, intensive preparations for investments inthe overall traffic sysiem are necessary, especially regarding thetraffic infrastntcture facilities - the pivotal points in the processof evaluating the traffic in our national tenitory. Croatia needsto define clearly its strategy in constructing and maintaining thegeneral traffic infrastructure, appointing at the same time thosewho will carry out the given tasks.

  15. Simulation of Traffic on Intersection After Change of Traffic Priority

    Directory of Open Access Journals (Sweden)

    Vladislav KŘIVDA

    2011-06-01

    Full Text Available This paper deals with problem of capacity calculation of intersection after change of traffic priority and with simulation of traffic using simulation software PTV VISSIM. This paper was prepared with financial support for project FRVŠ č. 2206/2011/F1/d “Innovation of Learning of Subjects from the Design of Urban Roads and Intersections”.

  16. 76 FR 70468 - Extension of Agency Information Collection Activity Under OMB Review: Airport Security

    Science.gov (United States)

    2011-11-14

    ... (SIDA); (4) submission to TSA of identifying information about individuals to whom the airport operator... information on individuals with unescorted access to a SIDA. Airport operators must ensure that...

  17. Delay Banking for Managing Air Traffic

    Science.gov (United States)

    Green, Steve

    2008-01-01

    Delay banking has been invented to enhance air-traffic management in a way that would increase the degree of fairness in assigning arrival, departure, and en-route delays and trajectory deviations to aircraft impacted by congestion in the national airspace system. In delay banking, an aircraft operator (airline, military, general aviation, etc.) would be assigned a numerical credit when any of their flights are delayed because of an air-traffic flow restriction. The operator could subsequently bid against other operators competing for access to congested airspace to utilize part or all of its accumulated credit. Operators utilize credits to obtain higher priority for the same flight, or other flights operating at the same time, or later, in the same airspace, or elsewhere. Operators could also trade delay credits, according to market rules that would be determined by stakeholders in the national airspace system. Delay banking would be administered by an independent third party who would use delay banking automation to continually monitor flights, allocate delay credits, maintain accounts of delay credits for participating airlines, mediate bidding and the consumption of credits of winning bidders, analyze potential transfers of credits within and between operators, implement accepted transfers, and ensure fair treatment of all participating operators. A flow restriction can manifest itself in the form of a delay in assigned takeoff time, a reduction in assigned airspeed, a change in the position for the aircraft in a queue of all aircraft in a common stream of traffic (e.g., similar route), a change in the planned altitude profile for an aircraft, or change in the planned route for the aircraft. Flow restrictions are typically imposed to mitigate traffic congestion at an airport or in a region of airspace, particularly congestion due to inclement weather, or the unavailability of a runway or region of airspace. A delay credit would be allocated to an operator of a

  18. Trajectory Specification for Automation of Terminal Air Traffic Control

    Science.gov (United States)

    Paielli, Russell A.

    2016-01-01

    "Trajectory specification" is the explicit bounding and control of aircraft tra- jectories such that the position at each point in time is constrained to a precisely defined volume of space. The bounding space is defined by cross-track, along-track, and vertical tolerances relative to a reference trajectory that specifies position as a function of time. The tolerances are dynamic and will be based on the aircraft nav- igation capabilities and the current traffic situation. A standard language will be developed to represent these specifications and to communicate them by datalink. Assuming conformance, trajectory specification can guarantee safe separation for an arbitrary period of time even in the event of an air traffic control (ATC) sys- tem or datalink failure, hence it can help to achieve the high level of safety and reliability needed for ATC automation. As a more proactive form of ATC, it can also maximize airspace capacity and reduce the reliance on tactical backup systems during normal operation. It applies to both enroute airspace and the terminal area around airports, but this paper focuses on arrival spacing in the terminal area and presents ATC algorithms and software for achieving a specified delay of runway arrival time.

  19. Geometric origin of scaling in large traffic networks

    CERN Document Server

    Popović, Marko; Zlatić, Vinko

    2011-01-01

    Large scale traffic networks are an indispensable part of contemporary human mobility and international trade. Networks of airport travel or cargo ships movements are invaluable for the understanding of human mobility patterns\\cite{Guimera2005}, epidemic spreading\\cite{Colizza2006}, global trade\\cite{Imo2006} and spread of invasive species\\cite{Ruiz2000}. Universal features of such networks are necessary ingredients of their description and can point to important mechanisms of their formation. Different studies\\cite{Barthelemy2010} point to the universal character of some of the exponents measured in such networks. Here we show that exponents which relate i) the strength of nodes to their degree and ii) weights of links to degrees of nodes that they connect have a geometric origin. We present a simple robust model which exhibits the observed power laws and relates exponents to the dimensionality of 2D space in which traffic networks are embedded. The model is studied both analytically and in simulations and t...

  20. Twelfth Annual Report of Operations under the Airport and Airway Development Act.

    Science.gov (United States)

    1981-01-01

    Expand apron. Rock Island County Quad City Mount Vernon 08 $ 338,670 Apply porous friction surface Mount Vernon Airport R/W 5-23; rehabilitate runway...lights. Authority Mount Vernon -Outland (COMMUTER) Peoria 09 $ 554,390 Construct and light airport entrance Greater Peoria Airport road. Authority...taxiway lighting. Airport Board Owensboro-Daviess County (COMMUTER) Somerset 07 $ 13,500 Replace portion of lighting on R/W 4-22. Somerset -Pulaski County

  1. Airport Choice in Sao Paulo Metropolitan Area: An Application of the Conditional Logit Model

    Science.gov (United States)

    Moreno, Marcelo Baena; Muller, Carlos

    2003-01-01

    Using the conditional LOGIT model, this paper addresses the airport choice in the Sao Paulo Metropolitan Area. In this region, Guarulhos International Airport (GRU) and Congonhas Airport (CGH) compete for passengers flying to several domestic destinations. The airport choice is believed to be a result of the tradeoff passengers perform considering airport access characteristics, airline level of service characteristics and passenger experience with the analyzed airports. It was found that access time to the airports better explain the airport choice than access distance, whereas direct flight frequencies gives better explanation to the airport choice than the indirect (connections and stops) and total (direct plus indirect) flight frequencies. Out of 15 tested variables, passenger experience with the analyzed airports was the variable that best explained the airport choice in the region. Model specifications considering 1, 2 or 3 variables were tested. The model specification most adjusted to the observed data considered access time, direct flight frequencies in the travel period (morning or afternoon peak) and passenger experience with the analyzed airports. The influence of these variables was therefore analyzed across market segments according to departure airport and flight duration criteria. The choice of GRU (located neighboring Sao Paulo city) is not well explained by the rationality of access time economy and the increase of the supply of direct flight frequencies, while the choice of CGH (located inside Sao Paulo city) is. Access time was found to be more important to passengers flying shorter distances while direct flight frequencies in the travel period were more significant to those flying longer distances. Keywords: Airport choice, Multiple airport region, Conditional LOGIT model, Access time, Flight frequencies, Passenger experience with the analyzed airports, Transportation planning

  2. Partitioning of Black Carbon between ultrafine and fine particle modes in an urban airport vs. urban background environment

    Science.gov (United States)

    Costabile, F.; Angelini, F.; Barnaba, F.; Gobbi, G. P.

    2015-02-01

    In this work, we characterize the Black Carbon (BC) aerosol in an urban airport vs. urban background environment with the objective to evaluate when and how the ultrafine BC dominates the bulk aerosol. Aerosol optical and microphysical properties were measured in a Mediterranean urban area (Rome) at sites impacted by BC sources including fossil fuels (FF), and biomass burning (BB). Experimental BC data were interpreted through measurement-constrained simulations of BC microphysics and optical properties. A "scheme" to separate the ultrafine BC was experimented on the basis of the relation found between changes in the BC partitioning between Aitken and accumulation mode particles, and relevant changes in particle size distribution and optical properties of the bulk aerosol. This separation scheme, applied to experimental data, proved useful to reveal the impact of airport and road traffic emissions. Findings may have important atmospheric implications. The experimented scheme can help separating different BC sources (FF, BB, "aged" BC) when BC size distributions may be very difficult to obtain (satellite, columnar observations, routine monitoring). Indeed, separating the ultrafine BC from the fine BC may provide significant benefits in addressing BC impact on air quality and climate.

  3. SAR Raw Data Generation for Complex Airport Scenes

    Directory of Open Access Journals (Sweden)

    Jia Li

    2014-10-01

    Full Text Available The method of generating the SAR raw data of complex airport scenes is studied in this paper. A formulation of the SAR raw signal model of airport scenes is given. Via generating the echoes from the background, aircrafts and buildings, respectively, the SAR raw data of the unified SAR imaging geometry is obtained from their vector additions. The multipath scattering and the shadowing between the background and different ground covers of standing airplanes and buildings are analyzed. Based on the scattering characteristics, coupling scattering models and SAR raw data models of different targets are given, respectively. A procedure is given to generate the SAR raw data of airport scenes. The SAR images from the simulated raw data demonstrate the validity of the proposed method.

  4. A Novel Surveillance System Applied in Civil Airport

    Directory of Open Access Journals (Sweden)

    Sun Hua Bo

    2016-01-01

    Full Text Available Conventional security monitoring of civil airport usually uses a fixed camera to acquire images. There are several problems with performance including difficulties introduced in the information transmission, storage, and analysis of the process. Insect compound eyes offer unique advantages for moving target capture and these have attracted the attention of many researchers in recent years. This paper contributes to this research by proposing a new surveillance system applied in civil airport. We discuss the finished bionic structure of the system, the development of the bionic control circuit, and introduce the proposed mathematical model of bionic compound eyes for data acquisition and image mosaic. Image matching for large view is also illustrated with different conditions. This mode and algorithm effectively achieve safety surveillance of airport with large field of view and high real-time processing.

  5. Aeronautical Mobile Airport Communications System (AeroMACS)

    Science.gov (United States)

    Budinger, James M.; Hall, Edward

    2011-01-01

    To help increase the capacity and efficiency of the nation s airports, a secure wideband wireless communications system is proposed for use on the airport surface. This paper provides an overview of the research and development process for the Aeronautical Mobile Airport Communications System (AeroMACS). AeroMACS is based on a specific commercial profile of the Institute of Electrical and Electronics Engineers (IEEE) 802.16 standard known as Wireless Worldwide Interoperability for Microwave Access or WiMAX (WiMax Forum). The paper includes background on the need for global interoperability in air/ground data communications, describes potential AeroMACS applications, addresses allocated frequency spectrum constraints, summarizes the international standardization process, and provides findings and recommendations from the world s first AeroMACS prototype implemented in Cleveland, Ohio, USA.

  6. Multi-modal cockpit interface for improved airport surface operations

    Science.gov (United States)

    Arthur, Jarvis J. (Inventor); Bailey, Randall E. (Inventor); Prinzel, III, Lawrence J. (Inventor); Kramer, Lynda J. (Inventor); Williams, Steven P. (Inventor)

    2010-01-01

    A system for multi-modal cockpit interface during surface operation of an aircraft comprises a head tracking device, a processing element, and a full-color head worn display. The processing element is configured to receive head position information from the head tracking device, to receive current location information of the aircraft, and to render a virtual airport scene corresponding to the head position information and the current aircraft location. The full-color head worn display is configured to receive the virtual airport scene from the processing element and to display the virtual airport scene. The current location information may be received from one of a global positioning system or an inertial navigation system.

  7. Nowcasting system MeteoExpert at Irkutsk airport

    Science.gov (United States)

    Bazlova, Tatiana; Bocharnikov, Nikolai; Solonin, Alexander

    2016-04-01

    Airport operations are significantly impacted by low visibility concerned with fog. Generation of accurate and timely nowcast products is a basis of early warning automated system providing information about significant weather conditions for decision-makers. Nowcasting system MeteoExpert has been developed that provides aviation forecasters with 0-6 hour nowcasts of the weather conditions including fog and low visibility. The system has been put into operation at the airport Irkutsk since August 2014. Aim is to increase an accuracy of fog forecasts, contributing to the airport safety, efficiency and capacity improvement. Designed for operational use numerical model of atmospheric boundary layer runs with a 10-minute update cycle. An important component of the system is the use of AWOS at the airdrome and three additional automatic weather stations at fogging sites in the vicinity of the airdrome. Nowcasts are visualized on a screen of forecaster's workstation and dedicated website. Nowcasts have been verified against actual observations.

  8. Meanings of a Territorial Infrastructure: the Airports Significati di una infrastruttura territoriale: gli aeroporti

    Directory of Open Access Journals (Sweden)

    Giuseppe Mazzeo

    2011-11-01

    Full Text Available

    The paper want to explore the major meanings of an airport. It is a territorial infrastructure that increases the spatial accessibility and the economic potential of a territory; in this sense, it is also a port to boost tourism and cultural exchanges. It is also an infrastructure bringing with it investment in other areas of mobility. Since the sixties, finally, it has also become an architectural icon and a symbol of urban level. Objective limitations remain; in particular for the position, outside the city, and for the service, that can be ordered and tidy. The airports have an important role for the move of people. As the international transport statistics the number of passengers in the main airports is growing, also if has suffered the blows of the international economic crisis. The expansion of air passenger traffic is related with the tendency to the specialization of travels, according to the range of movement of persons. The actual changing economic world coincides with a process of continuous growth of passenger flows, partly independent from that of economic growth; the combination of these two processes has multiplied the number of connections and has produced new phenomena. The transport system isn’t a neutral system, also if it is sectorial; it, rather, is linked very strongly with the territorial system in which it operates and with the location choices of firms and individuals. This reflection has value for all the transport’s infrastructures, although with different degrees. In this ranking the airports are located in a great importance position, as they can be a strategic asset in the territorial economic growth processes, contributing directly or indirectly to the development of local enterprises. An airport operates whether as a supplier of infrastructure or as a business reality in itself, operating in a highly competitive market with an high speed of change. Airports are an architectural and urban typology typically

  9. ANALYSIS OF TRAFFIC CONDITIONS IN URBAN THOROUGHFARES

    OpenAIRE

    Kovalenko, L.; Urdzik, S.

    2006-01-01

    Results of experimental investigations into descriptions of traffic flows in urban thoroughfares have been considered. Dependencies between traffic speed, density and intensity for various traffic conditions have been offered.

  10. Probabilistic description of traffic flow

    Science.gov (United States)

    Mahnke, R.; Kaupužs, J.; Lubashevsky, I.

    2005-03-01

    A stochastic description of traffic flow, called probabilistic traffic flow theory, is developed. The general master equation is applied to relatively simple models to describe the formation and dissolution of traffic congestions. Our approach is mainly based on spatially homogeneous systems like periodically closed circular rings without on- and off-ramps. We consider a stochastic one-step process of growth or shrinkage of a car cluster (jam). As generalization we discuss the coexistence of several car clusters of different sizes. The basic problem is to find a physically motivated ansatz for the transition rates of the attachment and detachment of individual cars to a car cluster consistent with the empirical observations in real traffic. The emphasis is put on the analogy with first-order phase transitions and nucleation phenomena in physical systems like supersaturated vapour. The results are summarized in the flux-density relation, the so-called fundamental diagram of traffic flow, and compared with empirical data. Different regimes of traffic flow are discussed: free flow, congested mode as stop-and-go regime, and heavy viscous traffic. The traffic breakdown is studied based on the master equation as well as the Fokker-Planck approximation to calculate mean first passage times or escape rates. Generalizations are developed to allow for on-ramp effects. The calculated flux-density relation and characteristic breakdown times coincide with empirical data measured on highways. Finally, a brief summary of the stochastic cellular automata approach is given.

  11. Reports on internet traffic statistics

    NARCIS (Netherlands)

    Hoogesteger, Martijn; Oliveira Schmidt, de Ricardo; Sperotto, Anna; Pras, Aiko

    2013-01-01

    Internet traffic statistics can provide valuable information to network analysts and researchers about the way nowadays networks are used. In the past, such information was provided by Internet2 in a public website called Internet2 NetFlow: Weekly Reports. The website reported traffic statistics fro

  12. Traffic Light Controller Using Fpga

    Directory of Open Access Journals (Sweden)

    D.Bhavana

    2015-04-01

    Full Text Available The traffic light sequence works on the specific switching of Red, Green and Yellow lights in a particular way with stipulated time form. The normal function of traffic lights requires sophisticated control and coordination to ensure that traffic moves as smoothly and safely as possible and that pedestrians are protected when they cross the roads [1] .This Traffic Light sequence is generated using a specific switching mechanism which will help to control a traffic light system on a road in a specified sequence. This paper focuses on the fact that the traffic lights can be varied in the day and night mode depending on the intensity of the traffic. It plays a vital role in supervising and running the metropolitan traffic and evade the possibilities of any unfortunate mishaps happening in and around the cities. It is a sequential machine to be scrutinized as per the requirements and programmed through a multistep development process. The methods that are used in this project are proposing the circuit, write a code, simulate, synthesis and implement on the hardware [8] . In this project, XILINX Software was chosen to devise a schematic using schematic edit, write a code using Verilog HDL (Hardware Description Language text editor and implements the circuit on Programmable Logic Device [PLD].The system has been successfully tested and implemented in hardware using Nexys 2 Digilent FPGA.

  13. 14 CFR 151.13 - Federal-aid Airport Program: Policy affecting landing aid requirements.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Federal-aid Airport Program: Policy affecting landing aid requirements. 151.13 Section 151.13 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIRPORTS FEDERAL AID TO AIRPORTS General...

  14. The importance of agglomeration effects for distribution centres around Amsterdam Airport Schiphol

    NARCIS (Netherlands)

    Warffemius, P.; van der Hoorn, T.; Klaassen, H.

    2010-01-01

    Amsterdam Airport Schiphol is a main European airport and represents an important concentration of European distribution centres (EDCs). It is commonly assumed that distribution centres are attracted to the airport region because of its air transport services. However, if one considers economies of

  15. 76 FR 67017 - Notice to Manufacturers of Airport Avian Radar Systems

    Science.gov (United States)

    2011-10-28

    ... Federal Aviation Administration Notice to Manufacturers of Airport Avian Radar Systems AGENCY: Federal Aviation Administration (FAA), U.S. DOT. ACTION: Notice to Manufacturers of Airport Avian Radar Systems... waivers to foreign manufacturers of airport avian radar systems that meet the requirements of FAA...

  16. 77 FR 64580 - Noise Exposure Map Notice for Van Nuys Airport, Van Nuys, California

    Science.gov (United States)

    2012-10-22

    ... Federal Aviation Administration Noise Exposure Map Notice for Van Nuys Airport, Van Nuys, California... Administration (FAA) announces its determination that the noise exposure maps submitted by Los Angeles World Airports, for Van Nuys Airport under the provisions of 49 U.S.C. 47501 et seq. (Aviation Safety and...

  17. 78 FR 64048 - Noise Exposure Map Notice for Bob Hope Airport, Burbank, California

    Science.gov (United States)

    2013-10-25

    ... Federal Aviation Administration Noise Exposure Map Notice for Bob Hope Airport, Burbank, California AGENCY... that the noise exposure maps submitted by Burbank-Glendale-Pasadena Airport Authority, for Bob Hope Airport under the provisions of 49 U.S.C. 47501 et. seq (Aviation Safety ] and Noise Abatement Act) and...

  18. 75 FR 47881 - Noise Exposure Map Notice, T.F.Green Airport, Warwick, RI

    Science.gov (United States)

    2010-08-09

    ... Federal Aviation Administration Noise Exposure Map Notice, T.F.Green Airport, Warwick, RI AGENCY: Federal... its determination that the noise exposure maps for T.F.Green Airport as submitted by the Rhode Island Airport Corporation under the provisions of Title I of the Aviation Safety and Noise Abatement Act of...

  19. 75 FR 76067 - Noise Exposure Map Notice, Naples Municipal Airport, Naples, FL

    Science.gov (United States)

    2010-12-07

    ... Federal Aviation Administration Noise Exposure Map Notice, Naples Municipal Airport, Naples, FL AGENCY...) announces its determination that the Noise Exposure Maps submitted by Naples Airport Authority for Naples Municipal Airport under the provisions of 49 U.S.C. 47501 et. seq (Aviation Safety and Noise Abatement...

  20. 78 FR 31627 - Twenty-Second Meeting: RTCA Special Committee 224, Airport Security Access Control Systems

    Science.gov (United States)

    2013-05-24

    ...: RTCA Special Committee 224, Airport Security Access Control Systems AGENCY: Federal Aviation... 224, Airport Security Access Control Systems. SUMMARY: The FAA is issuing this notice to advise the public of the twenty-second meeting of the RTCA Special Committee 224, Airport Security Access...

  1. 14 CFR 93.345 - VFR outbound procedures for fringe airports.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false VFR outbound procedures for fringe airports... Metropolitan Area Special Flight Rules Area § 93.345 VFR outbound procedures for fringe airports. (a) A pilot may depart from a fringe airport as defined in § 93.335 without filing a flight plan or...

  2. 14 CFR 121.590 - Use of certificated land airports in the United States.

    Science.gov (United States)

    2010-01-01

    ... under 14 CFR part 380 are covered by the statutory requirements to operate to and from part 139 airports... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Use of certificated land airports in the... Use of certificated land airports in the United States. (a) Except as provided in paragraphs (b) or...

  3. 48 CFR 1252.236-70 - Special precautions for work at operating airports.

    Science.gov (United States)

    2010-10-01

    ... Provisions and Clauses 1252.236-70 Special precautions for work at operating airports. As prescribed in (TAR) 48 CFR 1236.570, insert the following clause: Special Precautions for Work at Operating Airports (OCT... work at operating airports. 1252.236-70 Section 1252.236-70 Federal Acquisition Regulations...

  4. 14 CFR 135.393 - Large nontransport category airplanes: Landing limitations: Destination airports.

    Science.gov (United States)

    2010-01-01

    ...: Landing limitations: Destination airports. 135.393 Section 135.393 Aeronautics and Space FEDERAL AVIATION... category airplanes: Landing limitations: Destination airports. (a) No person operating a large nontransport... effective length of the most suitable runway at the destination airport; and (2) Is greater than the...

  5. 14 CFR 158.30 - PFC Authorization at Non-Hub Airports.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false PFC Authorization at Non-Hub Airports. 158... (CONTINUED) AIRPORTS PASSENGER FACILITY CHARGES (PFC'S) Application and Approval § 158.30 PFC Authorization at Non-Hub Airports. (a) General. This section specifies the procedures a public agency controlling...

  6. 14 CFR 121.443 - Pilot in command qualification: Route and airports.

    Science.gov (United States)

    2010-01-01

    ... airports. 121.443 Section 121.443 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Pilot in command qualification: Route and airports. (a) Each certificate holder shall provide a system... to each airport and terminal area into which that person is to operate, and ensures that that...

  7. 14 CFR 121.195 - Airplanes: Turbine engine powered: Landing limitations: Destination airports.

    Science.gov (United States)

    2010-01-01

    ... limitations: Destination airports. 121.195 Section 121.195 Aeronautics and Space FEDERAL AVIATION...: Destination airports. (a) No person operating a turbine engine powered airplane may take off that airplane at... alternate airport) the weight of the airplane on arrival would exceed the landing weight set forth in...

  8. The history of the airport; from grass fields to giant cities

    NARCIS (Netherlands)

    Peterse, H.

    2011-01-01

    In the early days of aviation airports where nothing more than a simple grass field from which airplanes could take off. These days there are airports that are enormous in size, and fulfil many more functions than simply allowing aircraft to take-off and land. The airport has shown a remarkable revo

  9. 48 CFR 1236.570 - Special precautions for work at operating airports.

    Science.gov (United States)

    2010-10-01

    ... Contract Clauses 1236.570 Special precautions for work at operating airports. Where any acquisition will require work at an operating airport, insert the clause at (TAR) 48 CFR 1252.236-70, Special Precautions... work at operating airports. 1236.570 Section 1236.570 Federal Acquisition Regulations System...

  10. 48 CFR 3052.236-70 - Special precautions for work at operating airports.

    Science.gov (United States)

    2010-10-01

    ... work at operating airports. As prescribed in (HSAR) 48 CFR 3036.570, insert the following clause: Special Precautions for Work at Operating Airports (DEC 2003) (a) When work is to be performed at an... work at operating airports. 3052.236-70 Section 3052.236-70 Federal Acquisition Regulations...

  11. 14 CFR 135.299 - Pilot in command: Line checks: Routes and airports.

    Science.gov (United States)

    2010-01-01

    ... airports. 135.299 Section 135.299 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Crewmember Testing Requirements § 135.299 Pilot in command: Line checks: Routes and airports. (a) No...; and (3) Include takeoffs and landings at one or more representative airports. In addition to...

  12. 28 CFR 0.69b - Delegation of authority respecting conveyances for public airports.

    Science.gov (United States)

    2010-07-01

    ... conveyances for public airports. 0.69b Section 0.69b Judicial Administration DEPARTMENT OF JUSTICE... authority respecting conveyances for public airports. The Assistant Attorney General in charge of the...(b) of The Airport and Airway Improvement Act of 1982 (96 Stat. 671, 692) with respect to...

  13. 14 CFR 121.637 - Takeoffs from unlisted and alternate airports: Domestic and flag operations.

    Science.gov (United States)

    2010-01-01

    ... airports: Domestic and flag operations. 121.637 Section 121.637 Aeronautics and Space FEDERAL AVIATION... Flight Release Rules § 121.637 Takeoffs from unlisted and alternate airports: Domestic and flag operations. (a) No pilot may takeoff an airplane from an airport that is not listed in the...

  14. Smoking restrictions in large-hub airports --- United States, 2002 and 2010.

    Science.gov (United States)

    2010-11-19

    Secondhand smoke (SHS) exposure causes death and disease in both nonsmoking adults and children, including cancer, cardiovascular and respiratory diseases. SHS exposure causes an estimated 46,000 heart disease deaths and 3,400 lung cancer deaths among U.S. nonsmoking adults annually. Adopting policies that completely eliminate smoking in all indoor areas is the only effective way to eliminate involuntary SHS exposure. In 2009, an estimated 696 million aircraft passenger boardings occurred in the United States. A 2002 survey of airport smoking policies found that 42% of 31 large-hub U.S. airports had policies requiring all indoor areas to be smoke-free. To update that finding, CDC analyzed the smoking policies of airports categorized as large-hub in 2010. This report summarizes the results of that analysis, which found that, although 22 (76%) of the 29 large-hub airports surveyed were smoke-free indoors, seven airports permitted smoking in certain indoor locations, including three of the five busiest airports. Although a majority of airports reported having specifically designated smoking areas outdoors in 2010 (79%) and/or prohibiting smoking within a minimum distance of entryways (69%), no airport completely prohibited smoking on all airport property. Smoke-free policies at the state, local, or airport authority level are needed for all airports to protect air travelers and workers at airports from SHS.

  15. 14 CFR Appendix D to Part 91 - Airports/Locations: Special Operating Restrictions

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Airports/Locations: Special Operating.... D Appendix D to Part 91—Airports/Locations: Special Operating Restrictions Section 1. Locations at..., GA (The William B. Hartsfield Atlanta International Airport) Baltimore, MD (Baltimore...

  16. 76 FR 19698 - Safety Zone; Repair of High Voltage Transmission Lines to Logan International Airport, Saugus...

    Science.gov (United States)

    2011-04-08

    ... to Logan International Airport, Saugus River, Saugus, MA AGENCY: Coast Guard, DHS. ACTION: Final rule... to Logan Airport. This safety zone is required to provide for the safety of life on navigable waters... Logan International Airport, Saugus River, Saugus, Massachusetts, in the Federal Register (76 FR...

  17. 76 FR 26183 - Safety Zone; Repair of High Voltage Transmission Lines to Logan International Airport, Saugus...

    Science.gov (United States)

    2011-05-06

    ... to Logan International Airport, Saugus River, Saugus, MA AGENCY: Coast Guard, DHS. ACTION: Temporary... transmission lines to Logan Airport. This safety zone is required to provide for the safety of life on... Lines to Logan International Airport, Saugus River, Saugus, Massachusetts, in the Federal Register...

  18. 76 FR 4575 - Safety Zone; Repair of High Voltage Transmission Lines to Logan International Airport, Saugus...

    Science.gov (United States)

    2011-01-26

    ... to Logan International Airport, Saugus River, Saugus, MA AGENCY: Coast Guard, DHS. ACTION: Notice of... of high voltage transmission lines to Logan Airport. This safety zone is required to provide for the... feed Logan Airport. The safety zone will be enforced immediately before, during, and after the start...

  19. 33 CFR 165.113 - Security Zone: Dignitary arrival/departure Logan International Airport, Boston, MA

    Science.gov (United States)

    2010-07-01

    .../departure Logan International Airport, Boston, MA 165.113 Section 165.113 Navigation and Navigable Waters... Guard District § 165.113 Security Zone: Dignitary arrival/departure Logan International Airport, Boston... governments arriving at, or departing from, Logan International Airport and as determined by the transit...

  20. Web traffic and firm performance

    DEFF Research Database (Denmark)

    Farooq, Omar; Aguenaou, Samir

    2013-01-01

    into better firm performance? This paper aims to answer these questions by documenting a positive relationship between the extent of web-traffic and firm performance in the MENA region during the 2010. We argue that higher web-traffic lowers the agency problems in firms by disseminating more information...... to stock market participants. Consequently, lower agency problems translate into better performance. Furthermore, we also show that agency reducing role of web-traffic is more pronounced in regimes where information environment is already bad. For example, our results show stronger impact of web......-traffic on firm performance in civil law countries, firms with concentrated ownership, and firms with more intangible assets. All of these groups are characterized by higher agency problems. Our results, therefore, indicate that web-traffic can play a substitute for traditional governance mechanisms in the MENA...

  1. Statistical analysis of the airport network of Pakistan

    Indian Academy of Sciences (India)

    Yasir Tariq Mohmand; Aihu Wang; Haibin Chen

    2015-07-01

    Transportation infrastructure plays a vital role in the development of a country’s economy and is regarded as one of the most important indicators of its economic growth. In this study, we analyse the Airport Network of Pakistan (ANP), which represents Pakistan’s domestic civil aviation infrastructure, as a weighted complex network. We find that ANP is a small-world network and is disassortative in nature. We further analyse the dynamic properties of the network and compare them to their topological counterparts. Although small in size, the ANP does show similar properties as compared to the US, China and especially the Indian airport network.

  2. The use of meta-heuristics for airport gate assignment

    DEFF Research Database (Denmark)

    Cheng, Chun-Hung; Ho, Sin C.; Kwan, Cheuk-Lam

    2012-01-01

    Improper assignment of gates may result in flight delays, inefficient use of the resource, customer’s dissatisfaction. A typical metropolitan airport handles hundreds of flights a day. Solving the gate assignment problem (GAP) to optimality is often impractical. Meta-heuristics have recently been...... proposed to generate good solutions within a reasonable timeframe. In this work, we attempt to assess the performance of three meta-heuristics, namely, genetic algorithm (GA), tabu search (TS), simulated annealing (SA) and a hybrid approach based on SA and TS. Flight data from Incheon International Airport...

  3. Multiproduct airport competition and e-commerce strategies

    OpenAIRE

    Valentina Bracaglia; Tiziana D'Alfonso; Alberto Nastasi

    2014-01-01

    We study airport competition when vertically differentiated products may be strategically offered at the time of ticket purchase through the Internet: a base product – the flight – and a composite one – the flight plus some premium commercials (PCs), as car parking, car rental or hotel reservation. We model a two stages game: first airports decide whether to offer PCs online, thus making the purchasing decisions interact through observability of aviation and commercial prices. Then, the...

  4. Traffic information computing platform for big data

    Energy Technology Data Exchange (ETDEWEB)

    Duan, Zongtao, E-mail: ztduan@chd.edu.cn; Li, Ying, E-mail: ztduan@chd.edu.cn; Zheng, Xibin, E-mail: ztduan@chd.edu.cn; Liu, Yan, E-mail: ztduan@chd.edu.cn; Dai, Jiting, E-mail: ztduan@chd.edu.cn; Kang, Jun, E-mail: ztduan@chd.edu.cn [Chang' an University School of Information Engineering, Xi' an, China and Shaanxi Engineering and Technical Research Center for Road and Traffic Detection, Xi' an (China)

    2014-10-06

    Big data environment create data conditions for improving the quality of traffic information service. The target of this article is to construct a traffic information computing platform for big data environment. Through in-depth analysis the connotation and technology characteristics of big data and traffic information service, a distributed traffic atomic information computing platform architecture is proposed. Under the big data environment, this type of traffic atomic information computing architecture helps to guarantee the traffic safety and efficient operation, more intelligent and personalized traffic information service can be used for the traffic information users.

  5. Statistical Multiplexing of Video Traffic and Data Traffic

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    This paper studies statistical multiplexing performance byinput of video traffic and data traffic. The inputs have different Qos requirements such as loss and delay jitter. By applying a modified FBM model, we present methods to estimate effective bandwidth of the aggregated traffic. Simulationswere paformed to evaluate effective bandwidth. The comparison between the estimation and the simulation shows that the estimations can give correct data for the effective bandwidths in terms of our interests. The analysis of gain by using priority multiplexing also addresses proper Qos configuration for the inputs in order to achieve positive gains.

  6. The Relation between Self-Reported Worry and Annoyance from Air and Road Traffic

    Science.gov (United States)

    van den Berg, Frits; Verhagen, Claudia; Uitenbroek, Daan

    2015-01-01

    Negative perceptions such as fear or worry are known to be an important determinant of annoyance. Annoyance caused by noise and odour has been analysed in relation to worry about safety or health due to environmental hazards, using responses to a health survey. In the survey area high environmental impacts come from air and road traffic. The survey results show a correlation between worry due to the airport or passing aircraft and noise and odour annoyance from aircraft (correlation coefficient (c.c.) close to 0.6). For the relation between worry about a busy street and annoyance from road traffic the correlation is lower (c.c. 0.4–0.5). Worries about different situations, such as living below sea level, close to an airport, busy street or chemical industry, are highly correlated (c.c. 0.5–0.9), also for situations that are not obviously related. Personal factors can also lead to more worry: being female, above 35 years of age, having a high risk for anxiety/depression and being in bad health increase the odds for being worried. The results thus suggest that worry about safety or health is correlated to both personal and environmental factors. PMID:25723645

  7. The Relation between Self-Reported Worry and Annoyance from Air and Road Traffic

    Directory of Open Access Journals (Sweden)

    Frits van den Berg

    2015-02-01

    Full Text Available Negative perceptions such as fear or worry are known to be an important determinant of annoyance. Annoyance caused by noise and odour has been analysed in relation to worry about safety or health due to environmental hazards, using responses to a health survey. In the survey area high environmental impacts come from air and road traffic. The survey results show a correlation between worry due to the airport or passing aircraft and noise and odour annoyance from aircraft (correlation coefficient (c.c. close to 0.6. For the relation between worry about a busy street and annoyance from road traffic the correlation is lower (c.c. 0.4–0.5. Worries about different situations, such as living below sea level, close to an airport, busy street or chemical industry, are highly correlated (c.c. 0.5–0.9, also for situations that are not obviously related. Personal factors can also lead to more worry: being female, above 35 years of age, having a high risk for anxiety/depression and being in bad health increase the odds for being worried. The results thus suggest that worry about safety or health is correlated to both personal and environmental factors.

  8. A method of automatic recognition of airport in complex environment from remote sensing image

    Science.gov (United States)

    Hao, Qiwei; Ni, Guoqiang; Guo, Pan; Chen, Xiaomei; Tang, Yi

    2009-11-01

    In this paper, a new method is proposed for airport recognition in complex environments. The algorithm takes all advantages of essential characteristics of the airport target. Structural characteristics of the airport are used to establish assumption process. Improved Hough transformation (HT) is used to check out those right straight-lines which stand for actual position and direction of runways. Morphological processing is used to remove road segments and isolated points. Finally, we combine these segments carefully to describe the whole airport area, and then our automatic recognition of airport target is realized.

  9. Framework for Traffic Congestion Management

    Directory of Open Access Journals (Sweden)

    Mahmud Hassan TALUKDAR

    2013-06-01

    Full Text Available Traffic Congestion is one of many serious global problems in all great cities resulted from rapid urbanization which always exert negative externalities upon society. The solution of traffic congestion is highly geocentric and due to its heterogeneous nature, curbing congestion is one of the hard tasks for transport planners. It is not possible to suggest unique traffic congestion management framework which could be absolutely applied for every great cities. Conversely, it is quite feasible to develop a framework which could be used with or without minor adjustment to deal with congestion problem. So, the main aim of this paper is to prepare a traffic congestion mitigation framework which will be useful for urban planners, transport planners, civil engineers, transport policy makers, congestion management researchers who are directly or indirectly involved or willing to involve in the task of traffic congestion management. Literature review is the main source of information of this study. In this paper, firstly, traffic congestion is defined on the theoretical point of view and then the causes of traffic congestion are briefly described. After describing the causes, common management measures, using world- wide, are described and framework for supply side and demand side congestion management measures are prepared.

  10. Road traffic injuries in Mozambique.

    Science.gov (United States)

    Romão, Francelina; Nizamo, Hanifa; Mapasse, Domingos; Rafico, Momede Mussá; José, João; Mataruca, Simão; Efron, M Lúcia; Omondi, Lucas O; Leifert, Thelma; Bicho, Joaquim M L Marungo

    2003-01-01

    Road traffic injuries affect the economy, health and quality of life of the people of Mozambique. Current road safety programmes are inadequate and inefficient given the magnitude of the problem. Data reported on road traffic crashes in the period 1990 to 2000 from the National Institute for Road Safety, the traffic police and the Central Hospital of Maputo were reviewed. The burden of road traffic injuries in Mozambique is rising, with at least three people killed daily. The age group most affected is 25-38 (39.35%), followed by 16-24 (20.79%). The main causes of crashes include reckless driving, drunken driving, roads with potholes, inadequate signs, lack of protection for pedestrians, and inadequate traffic law enforcement. However, the data are not adequate to reveal the true magnitude of the problem. Data collected by different sources are incomplete and not coordinated with other sources and databases. In urban areas, however, better response to crashes, treatment of the injured, reporting and data collection is attributable to a greater concentration of police and medical facilities. Road traffic safety programmes in Mozambique are inadequate and inefficient, starting with the data collection system. Improvement of injury surveillance systems is needed to help make road traffic safety a national development agenda priority and for developing and implementing road safety policies. For road safety programmes to be effective, government must facilitate stakeholders' involvement, and the clear definition of government activities, civil society activities and public-private partnerships need to be established.

  11. 国外控制机场飞机噪声影响的措施%Noise Impact Control Measures of Aircrafts in Foreign Airports

    Institute of Scientific and Technical Information of China (English)

    尹建坤; 赵仁兴; 田瑞丽; 马丽霞

    2015-01-01

    介绍了国外机场控制飞机噪声影响的主要做法。国际民航组织发行的《飞机噪声管理的平衡做法指导》主要是从减少噪声源,土地使用规划和管理,减噪运行程序和运行限制等方面控制噪声污染。美国采取的控制措施主要有做好航空规划和城市规划的协调发展,根据机场周边敏感点情况设计影响居民较少的飞行程序,并给出了机场噪声控制措施汇总。欧盟采取的控制措施是建立安静的空中交通系统,技术上需要有安静的飞机,低噪声程序和社会影响管理等。举例说明了目前国外几个机场采取的降噪措施。结合国外机场飞机噪声控制措施,提出了适合我国的飞机噪声控制措施建议。%The main approaches to control the impact of aircraft noise in foreign airports were introduced. The“Bal-ance approach guidance for aircraft noise management”by ICAO has provided the approaches for noise pollution control in the aspects of noise source reduction, land-use planning and management, noise abatement operational procedures and opera-tion restrictions, etc. In the United States, the main control measures are the balancing between aviation development plan-ning and urban development planning, designing the flight procedures with less affect on residents according to the distribu-tion of sensitive points around the airport, and summarizing the airport noise control measures. Control measure by the EU is to establish a quiet air traffic system, including the use of technically quiet aircrafts, low-noise flight procedures and social impact management. The noise reduction measures currently used by several foreign airports were illustrated. Summarizing the aircraft noise control measures in foreign airports, some aircraft noise control measures for domestic airports were sug-gested.

  12. 78 FR 57677 - Notice of Submission Deadline for Schedule Information for O'Hare International Airport, San...

    Science.gov (United States)

    2013-09-19

    .... Kennedy International Airport, 73 FR 3510 (Jan. 18, 2008) as amended 78 FR 28276 (May 14, 2013); Operating Limitations at Newark Liberty International Airport, 73 FR 29550 (May 21, 2008) as amended 78 FR 28280 (May 14...'s John F. Kennedy International Airport (JFK), and Newark Liberty International Airport (EWR)...

  13. 76 FR 18622 - Notice of Submission Deadline for Schedule Information for O'Hare International Airport, John F...

    Science.gov (United States)

    2011-04-04

    ... Airport (ORD), New York's John F. Kennedy International Airport (JFK), and Newark Liberty International... INFORMATION: The FAA has designated ORD as an IATA Level 2, Schedules Facilitated Airport, and JFK and EWR as Level 3, Coordinated Airports. Scheduled operations at JFK and EWR are limited by the FAA ] Orders,...

  14. Traffic jams: dynamics and control.

    Science.gov (United States)

    Orosz, Gábor; Wilson, R Eddie; Stépán, Gábor

    2010-10-13

    This introductory paper reviews the current state-of-the-art scientific methods used for modelling, analysing and controlling the dynamics of vehicular traffic. Possible mechanisms underlying traffic jam formation and propagation are presented from a dynamical viewpoint. Stable and unstable motions are described that may give the skeleton of traffic dynamics, and the effects of driver behaviour are emphasized in determining the emergent state in a vehicular system. At appropriate points, references are provided to the papers published in the corresponding Theme Issue.

  15. OPTIMASI BANDWITH MENGGUNAKAN TRAFFIC SHAPPING

    Directory of Open Access Journals (Sweden)

    Imam Riadi

    2012-05-01

    Full Text Available Perkembangan layanan komunikasi telah berkembang sangat pesat. Salah satunya adalah pemanfaatan penggunaan bandwith untuk mengakases jaringan Internet. Traffic shapping bandwidth dapat memberikan efesiensi dalam hal pemanfaatan bandwidth pada instansi yang melakukan manajemen dalam lalulintas jaringannya. Metode yang digunakan dalam penelitian ini adalah metode literatur yaitu metode pengumpulan data yang dilakukan dengan mengumpulkan sumber-sumber data yang terkait dan metode eksperimen yaitu melakukan penelitian dengan mengkonfigurasi Mikrotik RouterOS untuk melakukan traffic shapping bandwidth. Hasil penelitian ini adalah router yang dapat melakukan traffic shapping sehingga kualitas koneksi menjadi lebih baik untuk mengakses dan mengambil data dari sebuah website.

  16. Traffic Light Detection at Night

    DEFF Research Database (Denmark)

    Jensen, Morten Bornø; Philipsen, Mark Philip; Bahnsen, Chris

    2015-01-01

    Traffic light recognition (TLR) is an integral part of any in- telligent vehicle, it must function both at day and at night. However, the majority of TLR research is focused on day-time scenarios. In this paper we will focus on detection of traffic lights at night and evalu- ate the performance...... of three detectors based on heuristic models and one learning-based detector. Evaluation is done on night-time data from the public LISA Traffic Light Dataset. The learning-based detector out- performs the model-based detectors in both precision and recall. The learning-based detector achieves an average...

  17. 14 CFR 139.325 - Airport emergency plan.

    Science.gov (United States)

    2010-01-01

    ...; (8) Failure of power for movement area lighting; and (9) Water rescue situations, as appropriate. (c... will be used to accommodate uninjured, injured, and deceased persons; (6) Plans for crowd control... control of crowds in the event of an emergency on the airport; and (7) Procedures for removing...

  18. 76 FR 5510 - Safety Enhancements Part 139, Certification of Airports

    Science.gov (United States)

    2011-02-01

    ... expired airport identification badge or when a tenant renews a lease agreement. All training curricula... required to conduct pavement surface evaluations to ensure reliability of runway surfaces in wet weather... performance is critical for all aircraft especially on wet runway surfaces. Under certain...

  19. LF airport ground noise mitigation using scattering sections

    NARCIS (Netherlands)

    Bosschaart, C.; Eisses A.R.; Eerden, F.J.M. van der

    2012-01-01

    Ground noise due to aircraft starting from the Amsterdam airport runway ‘Polderbaan’ has been an issue since its construction in 2003. Take off operation in headwind conditions causes downwind sound propagation towards a residential area situated 2,5 km Southwest of the runway. Due to the large prop

  20. Aircraft noise exposure from Schiphol airport: A relation with complainants

    NARCIS (Netherlands)

    Jong, R.G. de; Wiechen, C.M.A.G. van; Franssen, E.A.M.; Lebret, E.

    2002-01-01

    The possible relation between aircraft noise exposure and the prevalence of complainants around Schiphol airport was studied. The home address of people who complain about aircraft noise at the Environment Advisory Committee Schiphol was combined with annual average noise levels, using a Geographic

  1. Operational workforce planning for check-in counters at airports

    DEFF Research Database (Denmark)

    Stolletz, Raik

    2010-01-01

    This paper addresses operation models for workforce planning for check-in systems at airports. We characterize different tasks of the hierarchical workforce planning problem with time-dependent demand. A binary linear programming formulation is developed for the fortnightly tour scheduling problem...

  2. SAS Launches Biometric Identification at Airports All Over Sweden

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ Scandinavian Airlines is to launch a new biometric identification system throughout Sweden.When traveling, your fingerprint will be matched to your check-in baggage. This makes the check-in process easier and improves security. The new technology will be launched during November and December at almost all airports served by Scandinavian Airlines in Sweden.

  3. Discharge of surface water from Billund Airport (VB)

    DEFF Research Database (Denmark)

    Wetlesen, Kåre Wessel; Møller, Jens; Bastholm, Lars

    1999-01-01

    It has been found that Billund Airport does not cause any environmental strain on Billund Stream that it can not handle by itself. Thought it has been assessed that in combination with extreme weather the strain can exceed a critical limit. Such situation can cause great damage to the flora...

  4. Annual variations of frost table in Kangerlussuaq Airport, western Greenland

    DEFF Research Database (Denmark)

    2007-01-01

    Ground-penetrating radar (GPR) has been used to study the annual variations of the frost table beneath the southern parking area at Kangerlussuaq Airport, western Greenland. In autumn 2000, three test areas were painted white in order to reduce further development of depressions in the asphalt...

  5. Human factors in layers of defense in airport security

    NARCIS (Netherlands)

    Andriessen, H.; Van Gulijk, C.; Ale, B.J.M.

    2012-01-01

    Airport security systems are built up out of layers of defence based on the security-in-depth model (Talbot & Jakeman, 2008). The Transport Safety Authority (TSA) in the United States defined a staggering 20 layers of defence to control security risks. This means that not only security personnel is

  6. The security system at European airports - Tour d’Horizon

    NARCIS (Netherlands)

    Rekiel, J.; de Wit, J.

    2013-01-01

    This paper aims to provide an analysis of the existing security system at European airports. At first, the security is defined and the considerations of the air passenger security on the ground and in the air are discussed. Subsequently, current aspects shaping the European aviation security policy

  7. Precise Ortho Imagery as the Source for Authoritative Airport Mapping

    Science.gov (United States)

    Howard, H.; Hummel, P.

    2016-06-01

    As the aviation industry moves from paper maps and charts to the digital cockpit and electronic flight bag, producers of these products need current and accurate data to ensure flight safety. FAA (Federal Aviation Administration) and ICAO (International Civil Aviation Organization) require certified suppliers to follow a defined protocol to produce authoritative map data for the aerodrome. Typical airport maps have been produced to meet 5 m accuracy requirements. The new digital aviation world is moving to 1 m accuracy maps to provide better situational awareness on the aerodrome. The commercial availability of 0.5 m satellite imagery combined with accurate ground control is enabling the production of avionics certified .85 m orthophotos of airports around the globe. CompassData maintains an archive of over 400+ airports as source data to support producers of 1 m certified Aerodrome Mapping Database (AMDB) critical to flight safety and automated situational awareness. CompassData is a DO200A certified supplier of authoritative orthoimagery and attendees will learn how to utilize current airport imagery to build digital aviation mapping products.

  8. PRECISE ORTHO IMAGERY AS THE SOURCE FOR AUTHORITATIVE AIRPORT MAPPING

    Directory of Open Access Journals (Sweden)

    H. Howard

    2016-06-01

    Full Text Available As the aviation industry moves from paper maps and charts to the digital cockpit and electronic flight bag, producers of these products need current and accurate data to ensure flight safety. FAA (Federal Aviation Administration and ICAO (International Civil Aviation Organization require certified suppliers to follow a defined protocol to produce authoritative map data for the aerodrome. Typical airport maps have been produced to meet 5 m accuracy requirements. The new digital aviation world is moving to 1 m accuracy maps to provide better situational awareness on the aerodrome. The commercial availability of 0.5 m satellite imagery combined with accurate ground control is enabling the production of avionics certified .85 m orthophotos of airports around the globe. CompassData maintains an archive of over 400+ airports as source data to support producers of 1 m certified Aerodrome Mapping Database (AMDB critical to flight safety and automated situational awareness. CompassData is a DO200A certified supplier of authoritative orthoimagery and attendees will learn how to utilize current airport imagery to build digital aviation mapping products.

  9. The treatment of uncertainty in airport strategic planning

    NARCIS (Netherlands)

    Kwakkel, J.H.

    2010-01-01

    The treatment of uncertainty in the long-term planning of infrastructures in general and of mainports such as airports and seaports is a key challenge for decisionmakers. Moreover, these uncertainties have increased over the last decades due to changes in owner structure, changes in rules and regula

  10. Consumer preferences in the design of airport passenger areas

    NARCIS (Netherlands)

    Van Oel, C.J.; Van den Berkhof, F.W.

    2013-01-01

    In recent decades, commercial developments have become increasingly important for the overall profit of airports. However, little is known about consumer preferences regarding the design of passenger areas, which is striking as the design of terminal buildings affects consumers' emotional state and

  11. A New Method for Automatically Labeling Aircrafts in Airport Video

    Directory of Open Access Journals (Sweden)

    Luo Xiao

    2015-01-01

    Full Text Available For the problem that the airport video monitoring could only provide the image information while the label information including the flight number is not provided, a new method for automatically labeling aircrafts in airport video through the fusion of video and ADS-B data has been proposed. First, the image coordinates of aircrafts will be obtained through the image tracking of video. Then, the homography matrix between two projection planes will be calculated with the four and above point and line correspondences selected from the airport map and video image, respectively to the map image coordinates into the map coordinates. Finally, the aircrafts in video can be automatically labeled through the fusion of image tracking data and ADS-B monitoring data. Because an image coordinate measurement error exists at the time of selecting points from the image, the resulting coordinate conversion error is derived and the impact of point correspondence geometric layout on mesh coordinate mapping error is analyzed. Experiments have been conducted based on the actual data of Chengdu Shuangliu International Airport. The results show that the method can automatically label aircrafts in video in an effective way.

  12. [Medical services at Paris-Charles-de-Gaulle airport].

    Science.gov (United States)

    Bargain, Philippe

    2015-01-01

    Charles-de-Gaulle airport in Roissy, a 3 400 hectare citadel, contains a multitude of airlines, service companies, businesses, retailers and public services, including firefighters, police officers, customs officers, ministers and medical teams. This article presents its missions, notably with regard to health services.

  13. The Use of Wireless Sensor Network for Increasing Airport Safety

    Directory of Open Access Journals (Sweden)

    Jakub Kraus

    2013-09-01

    Full Text Available This article deals with the use of wireless sensor networks for increasing safety at airports, respectively for replacing the current monitoring system to ensure safety. The article describes sensor networks and their applications to the identified processes and consideration of financial and safety benefits.

  14. Birds of Prey at the International Airport "Strigino", Russia

    Directory of Open Access Journals (Sweden)

    Nadezhda E. Kolesova

    2016-04-01

    Full Text Available In this article we discuss the seasonal dynamics and population density of Birds of Prey at the Nizhniy Novgorod International airport “Strigino”, based on data collected from November, 2013 to November, 2014. During this period a total of 71 raptors of 9 species were observed, including one breeding species – the Eurasian Marsh Harrier (Circus aeruginosus. The seasonal population dynamics and species composition of Birds of Prey on the territory of the airport was studied. The highest population density and species number occurred during end of June – July, in September and in April. The summer population peak was caused by regular observations of hunting birds, whose nests were located on the territory of the airport and in the close vicinity. Young birds also made a contribution to this peak. Autumn and spring population peaks were caused by more frequent observations of migrating raptors during the seasonal migrations. The lowest number of raptors in the airport was observed in winter.

  15. 78 FR 9770 - Notice of Request to Release Airport Property

    Science.gov (United States)

    2013-02-11

    .... ADDRESSES: Comments on this application may be mailed or delivered to the FAA at the following address: Lynn... subsequently reinvested in purchasing land adjacent to the Wichita Mid-continent Airport (ICT), which is also... person may, upon appointment and request, inspect the application, notice and other documents...

  16. Study Results on Knowledge Requirements for Entry-Level Airport Operations and Management Personnel

    Science.gov (United States)

    Quilty, Stephen M.

    2005-01-01

    This paper identifies important topical knowledge areas required of individuals employed in airport operations and management positions. A total of 116 airport managers and airfield operations personnel responded to a survey that sought to identify the importance of various subject matter for entry level airport operations personnel. The results from this study add to the body of research on aviation management curriculum development and can be used to better develop university curriculum and supplemental training focused on airport management and operations. Recommendations are made for specialized airport courses within aviation management programs. Further, this study identifies for job seekers or individuals employed in entry level positions those knowledge requirements deemed important by airport managers and operations personnel at different sized airports.

  17. Designing Public Space for Mobility: Contestation, Negotiation and Experiment at Amsterdam Airport Schiphol

    DEFF Research Database (Denmark)

    Nikolaeva, Anna

    2012-01-01

    the complexity and interdependency of the interests at stake in the airport design, as well the value of an airport terminal as an urban design exercise. This is particularly relevant in the discussion of the transformation of spaces of mobility, such as airports or railway stations, into multifunctional public......The paper investigates airport design, using the example of Amsterdam Airport Schiphol, from the point of view of managers, architects and designers. It is argued that existing accounts of the airport as a space of transit as well as a place for shopping and entertainment have underrated...... spaces and may also be valid for urban spaces where mobilities are becoming increasingly important. The paper analyses the challenges and opportunities that arise in such design situations, tracing the recent transformations of Amsterdam Airport Schiphol from the perspective of professionals who have...

  18. [Comics for traffic education: evaluation of a traffic safety campaign].

    Science.gov (United States)

    Bonfadelli, H

    1989-01-01

    Traffic safety campaigns often are ineffective to change driving behavior because they don't reach the target group or are recognized only by people who are already interested or concerned. The evaluation of a traffic safety campaign called "Leo Lässig", addressed to young new drivers, shows that recognition and acceptance by the target group were stimulated by the age-conform means of comic-strips.

  19. Inside the Mechanics of Network Development: How Competition and Strategy Reorganize European Air Traffic

    Science.gov (United States)

    Huber, Hans

    2006-01-01

    Air transport forms complex networks that can be measured in order to understand its structural characteristics and functional properties. Recent models for network growth (i.e., preferential attachment, etc.) remain stochastic and do not seek to understand other network-specific mechanisms that may account for their development in a more microscopic way. Air traffic is made up of many constituent airlines that are either privately or publicly owned and that operate their own networks. They follow more or less similar business policies each. The way these airline networks organize among themselves into distinct traffic distributions reveals complex interaction among them, which in turn can be aggregated into larger (macro-) traffic distributions. Our approach allows for a more deterministic methodology that will assess the impact of airline strategies on the distinct distributions for air traffic, particularly inside Europe. One key question this paper is seeking to answer is whether there are distinct patterns of preferential attachment for given classes of airline networks to distinct types of European airports. Conclusions about the advancing degree of concentration in this industry and the airline operators that accelerate this process can be drawn.

  20. Characteristics of synchronized traffic in mixed traffic flow

    Institute of Scientific and Technical Information of China (English)

    Ning Hong-Xin; Xue Yu

    2012-01-01

    In this paper,the characteristics of synchronized traffic in mixed traffic flow are investigated based on the braking light model.By introducing the energy dissipation and the distribution of slowdown vehicles,the effects of the maximum velocity,the mixing ratio,and the length of vehicles on the synchronized flow are discussed.It is found that the maximum velocity plays a great role in the synchronized flow in mixed traffic.The energy dissipation and the distribution of slowdown vehicles in the synchronized flow region are greatly different from those in free flow and a traffic jamming region.When all of vehicles have the same maximum velocity with Vmax > 15,the mixed traffic significantly displays synchronized flow,which has been demonstrated by the relation between flow rate and occupancy and estimation of the cross-correlation function.Moreover,the energy dissipation in the synchronized flow region does not increase with occupancy.The distribution of slowdown vehicles shows a changeless platform in the synchronized flow region.This is an interesting phenomenon. It helps to deeply understand the synchronized flow and greatly reduce the energy dissipation of traffic flow.

  1. Lagrangian Multi-Class Traffic State Estimation

    NARCIS (Netherlands)

    Yuan, Y.

    2013-01-01

    Road traffic is important to everybody in the world. People travel and commute everyday. For those who travel by cars (or other types of road vehicles), traffic congestion is a daily experience. One essential goal of traffic researchers is to reduce traffic congestion and to improve the whole traffi

  2. Study on Macro-traffic Model

    Institute of Scientific and Technical Information of China (English)

    FangGe; GuowuZhang; BaojunYuan; KepingLi

    2004-01-01

    Macro-traffic model is an effective tool for supporting traffic programmer to This article is based on the software products VISEM (demand model) and VISUM (supply model) from PTV Company of Germany, and studies macro-traffic model on the basis of considering that traffic system is an interactive system of between a supply system and a demand system.

  3. Assessment of Traffic Noise Impacts

    DEFF Research Database (Denmark)

    Rich, Jeppe Husted; Nielsen, Otto Anker

    2004-01-01

    A steady growth in traffic intensities in most urban areas throughout the world has forced planners and politicians to seriously consider the resulting environmental impact, such as traffic noise, accidents and air pollution. The assessment of such negative factors is needed in order to reveal...... the true social benefit of infrastructure plans. The paper presents a noise assessment model for the Copenhagen region, which brings together GIS technology and non-linear hedonic regression models to reveal the implicit costs of traffic noise measured as the marginal percentage loss in property values...... with respect to the decibel traffic noise. The model distinguishes between houses and apartments and shows that the ability to include refined accessibility variables have significant impact on estimated prices....

  4. Intelligent Ambulance Traffic Assistance System

    Directory of Open Access Journals (Sweden)

    RONOJOY GHOSH

    2013-09-01

    Full Text Available With the increase in traffic road density, several causalities occur due to delay in taking a patient to the hospital in an ambulance. In this paper, we have developed an algorithm to find the shortest path to reach the required destination. As required the software will identify the present location of the vehicle and ask the user for the destination. Then it will show all the available paths, highlighting the shortest one or in several cases the most optimum one. Further we made the traffic signals automated for special vehicles like an ambulance or a fire-engine such that the signals will go green for the ambulance as it comes in the vicinity of the traffic signal, thus providing them with a clear path to reach its destination. The original signal is restored as soon as the ambulance goes undetected by the Bluetooth scanner of the traffic signal.

  5. A multiagent urban traffic simulation

    CERN Document Server

    Tranouez, Pierrick; Langlois, Patrice

    2012-01-01

    We built a multiagent simulation of urban traffic to model both ordinary traffic and emergency or crisis mode traffic. This simulation first builds a modeled road network based on detailed geographical information. On this network, the simulation creates two populations of agents: the Transporters and the Mobiles. Transporters embody the roads themselves; they are utilitarian and meant to handle the low level realism of the simulation. Mobile agents embody the vehicles that circulate on the network. They have one or several destinations they try to reach using initially their beliefs of the structure of the network (length of the edges, speed limits, number of lanes etc.). Nonetheless, when confronted to a dynamic, emergent prone environment (other vehicles, unexpectedly closed ways or lanes, traffic jams etc.), the rather reactive agent will activate more cognitive modules to adapt its beliefs, desires and intentions. It may change its destination(s), change the tactics used to reach the destination (favorin...

  6. Automatic Traffic Recorder (ATR) Stations

    Data.gov (United States)

    Department of Homeland Security — The data included in the GIS Traffic Stations Version database have been assimilated from station description files provided by FHWA for Weigh-in-Motion (WIM), and...

  7. Estimating Emissions from Railway Traffic

    DEFF Research Database (Denmark)

    Jørgensen, Morten W.; Sorenson, Spencer C.

    1998-01-01

    Several parameters of importance for estimating emissions from railway traffic are discussed, and typical results presented. Typical emissions factors from diesel engines and electrical power generation are presented, and the effect of differences in national electrical generation sources...

  8. AAA Foundation for Traffic Safety

    Science.gov (United States)

    ... kind of road user. 1 2 3 4 Traffic Safety News Distracted driving fines are up, but ... detailed data regarding when, where, and how much people drive and goes beyond existing federal data. Research ...

  9. An Open-Source Microscopic Traffic Simulator

    CERN Document Server

    Treiber, Martin; 10.1109/MITS.2010.939208

    2010-01-01

    We present the interactive Java-based open-source traffic simulator available at www.traffic-simulation.de. In contrast to most closed-source commercial simulators, the focus is on investigating fundamental issues of traffic dynamics rather than simulating specific road networks. This includes testing theories for the spatiotemporal evolution of traffic jams, comparing and testing different microscopic traffic models, modeling the effects of driving styles and traffic rules on the efficiency and stability of traffic flow, and investigating novel ITS technologies such as adaptive cruise control, inter-vehicle and vehicle-infrastructure communication.

  10. Stochastic control of traffic patterns

    DEFF Research Database (Denmark)

    Gaididei, Yuri B.; Gorria, Carlos; Berkemer, Rainer

    2013-01-01

    A stochastic modulation of the safety distance can reduce traffic jams. It is found that the effect of random modulation on congestive flow formation depends on the spatial correlation of the noise. Jam creation is suppressed for highly correlated noise. The results demonstrate the advantage...... of heterogeneous performance of the drivers in time as well as individually. This opens the possibility for the construction of technical tools to control traffic jam formation....

  11. TrafficGen Architecture Document

    Science.gov (United States)

    2016-01-01

    Poisson, Jitter, and Clone . Researchers can experience an added dimension of network traffic visualization by pairing TrafficGen with the NRL Scripted...MVC Classes The top-level MVC classes control the workspace of the application, specifically the menu and the way the nodes and events are rendered...This is a container class that holds singleton instances of the view classes employed by this application. Because of the way this application is

  12. Future Emissions from Railway Traffic

    DEFF Research Database (Denmark)

    Sorenson, Spencer C.

    1998-01-01

    In investigation of the expected development in factors which influence railway energy consumption and emissions. Traffic factors such as train speed, load, an occupancy were considered. Tehcnical factors such an emissions factors, fleet composition and train weight were also considered. An estim......In investigation of the expected development in factors which influence railway energy consumption and emissions. Traffic factors such as train speed, load, an occupancy were considered. Tehcnical factors such an emissions factors, fleet composition and train weight were also considered...

  13. Internet Load and Traffic Balancing

    Institute of Scientific and Technical Information of China (English)

    李文正; 郭巧; 郭为民

    2005-01-01

    Load and traffic balancing for the Internet are analyzed. An intelligent domain name system(DNS) policy for the control and management of content distribution networks (CDN) is presented. An CDNs network based Urtitech IntelliDNS is built, and performance of the network in realizing traffic and load balancing is measured. It is proved that CDNs provide a valuable service and the methods are feasible.

  14. Estimating emissions from railway traffic

    Energy Technology Data Exchange (ETDEWEB)

    Joergensen, M.W.; Sorenson, C.

    1997-07-01

    The report discusses methods that can be used to estimate the emissions from various kinds of railway traffic. The methods are based on the estimation of the energy consumption of the train, so that comparisons can be made between electric and diesel driven trains. Typical values are given for the necessary traffic parameters, emission factors, and train loading. Detailed models for train energy consumption are presented, as well as empirically based methods using average train speed and distance between stop. (au)

  15. Fastlane: Traffic flow modeling and multi-class dynamic traffic management

    NARCIS (Netherlands)

    Schreiter, T.; Van Wageningen-Kessels, F.L.M.; Yuan, Y.; Van Lint, J.W.C.; Hoogendoorn, S.P.

    2012-01-01

    Dynamic Traffic Management (DTM) aims to improve traffic conditions. DTM usually consists of two steps: first the current traffic is estimated, then appropriate control actions are determined based on that estimate. In order to estimate and control the traffic, a suitable traffic flow model that rep

  16. Classification of Automated Search Traffic

    Science.gov (United States)

    Buehrer, Greg; Stokes, Jack W.; Chellapilla, Kumar; Platt, John C.

    As web search providers seek to improve both relevance and response times, they are challenged by the ever-increasing tax of automated search query traffic. Third party systems interact with search engines for a variety of reasons, such as monitoring a web site’s rank, augmenting online games, or possibly to maliciously alter click-through rates. In this paper, we investigate automated traffic (sometimes referred to as bot traffic) in the query stream of a large search engine provider. We define automated traffic as any search query not generated by a human in real time. We first provide examples of different categories of query logs generated by automated means. We then develop many different features that distinguish between queries generated by people searching for information, and those generated by automated processes. We categorize these features into two classes, either an interpretation of the physical model of human interactions, or as behavioral patterns of automated interactions. Using the these detection features, we next classify the query stream using multiple binary classifiers. In addition, a multiclass classifier is then developed to identify subclasses of both normal and automated traffic. An active learning algorithm is used to suggest which user sessions to label to improve the accuracy of the multiclass classifier, while also seeking to discover new classes of automated traffic. Performance analysis are then provided. Finally, the multiclass classifier is used to predict the subclass distribution for the search query stream.

  17. 深圳地铁1号线续建工程机场东站设计%Design of east airport station of continuous constn~on engineering on Shenzhen subway lme No. 1

    Institute of Scientific and Technical Information of China (English)

    郄雪刚

    2012-01-01

    针对深圳地铁1号线续建工程机场东站的工程项目的特殊性,设计理念的先进性,探索了滨海城市轨道交通高架车站的建筑设计方向,通过机场东站技术成果的说明为相关项目的设计工作提供参考。%In light of the specialty of east airport station engineering project of Shenzhen subway line No. 1 and advancement of the design con- cept, the paper explores the design orientation of elevated track traffic station in waterfront city, and illustrated the technological achievements acquired in east airport, it has provided reference for the design of relevant project.

  18. Air Cargo Development in the Regional Airports of the Baltic Sea Region Through Road Feeder Services

    Directory of Open Access Journals (Sweden)

    Beifert Anatoli

    2015-06-01

    Full Text Available As issued in the Competition Policy Brief on the new state aid rules for a competitive aviation industry by the Competition Directorate-General of the European Commission in February 20141, it will be more difficult for unprofitable airports, to obtain financial public subsidies on EU, national or regional level. Although the positive impact of small airports on the regional development and general accessibility was mentioned, still the operating aid to the airports shall be cut out over a maximum of 10 years. It has been further stated that the vast majority of small and regional airports experience problems to cover their running operative costs, as a result from an intensive market competition and overlapping of airports’ catchment areas preventing even some promising airports from growth. Public subsidies are mostly used by the airport management for infrastructural investments, to cover operating losses or to attract price-sensitive airlines. Herewith, among other things, the EU Commission is pointing out at the lack of cooperation structures and network strategies among the regional airports and at rather isolated and individual approach during elaboration of the airport development scenarios. However, the Competition Policy Brief permits public aid to regional airports, among other things if there is sufficient transports need to establish transition periods for small airports; the need for more flexibility of the regional airports in the remote areas has been underlined. The EU Commission is expecting herewith not to close the regional airports, but to stimulate them to operate on cost efficient and profitable basis, and that only the most inefficient airports will be closed.

  19. Wind farms' influences for traffic safety. Study of distance requirements for road traffic, railway traffic, sea traffic and air travel; Tuulivoimaloiden vaikutukset liikenneturvallisuuteen. Selvitys etaeisyysvaatimuksista tie-, rautatie-, meri- ja lentoliikenteen osalta

    Energy Technology Data Exchange (ETDEWEB)

    Hytoenen, K.; Harju, M.; Piispanen, J.; Haulos, S.

    2012-11-15

    As wind power projects, both design and implementation, have increased rapidly, wind power manufacturers have stated that infrastructure of traffic restricts and complicates implementation of wind power projects. Failure of wind farm and both snow and ice thrown from blades and tower are commonly thought to be dangerous for settlement and for road, railway and sea traffic. Based on the accessible information accidents, which are connected to wind farms, won't cause notable harm for outsiders. Majority of the human injury and fatal accidents concerns the personnel of the wind farm in implementation and operational phases, not outsiders. Purpose of this study has been to clarify how distances requirements in different forms of traffic in Finland differ from other countries that are included in this comparison, and to find grounds for possibly revising these guidelines. In Finland there are still longest distance requirements when placing wind farm nearby the main roads, even after Finnish Traffic Agency revised guidelines in 2012. Regarding roads, differences between all the countries were minor. Also distance requirements regarding railways differ relatively little. Sweden has shortest distance requirement. Distance requirements in Finland and Denmark have been reduced in past few years. Any of these countries have not stated actual defined distance requirements related for example to shipping channels or lanes. International Civil Aviation Organization ICAO has settled internationally rules for obstacle limitation surface nearby airports and marking flight obstacles. Countries have stated national aviation regulations according to these rules and for this reason these regulations are quite consistent. In this study distance requirements are recommended to be calculated for certain basis. In case of roads and railways a general minimum distance requirement is suggested to be 1 x wind farm overall height. Road owner is allowed to require higher distance for

  20. Synchronized flow in oversaturated city traffic.

    Science.gov (United States)

    Kerner, Boris S; Klenov, Sergey L; Hermanns, Gerhard; Hemmerle, Peter; Rehborn, Hubert; Schreckenberg, Michael

    2013-11-01

    Based on numerical simulations with a stochastic three-phase traffic flow model, we reveal that moving queues (moving jams) in oversaturated city traffic dissolve at some distance upstream of the traffic signal while transforming into synchronized flow. It is found that, as in highway traffic [Kerner, Phys. Rev. E 85, 036110 (2012)], such a jam-absorption effect in city traffic is explained by a strong driver's speed adaptation: Time headways (space gaps) between vehicles increase upstream of a moving queue (moving jam), resulting in moving queue dissolution. It turns out that at given traffic signal parameters, the stronger the speed adaptation effect, the shorter the mean distance between the signal location and the road location at which moving queues dissolve fully and oversaturated traffic consists of synchronized flow only. A comparison of the synchronized flow in city traffic found in this Brief Report with synchronized flow in highway traffic is made.

  1. Percolation properties in a traffic model

    CERN Document Server

    Wang, Feilong; Xu, Xiaoyun; Wu, Ruoqian; Havlin, Shlomo

    2015-01-01

    As a dynamical complex system, traffic is characterized by a transition from free flow to congestions, which is mostly studied in highways. However, despite its importance in developing congestion mitigation strategies, the understanding of this common traffic phenomenon in a city-scale is still missing. An open question is how the traffic in the network collapses from a global efficient traffic to isolated local flows in small clusters, i.e. the question of traffic percolation. Here we study the traffic percolation properties on a lattice by simulation of an agent-based model for traffic. A critical traffic volume in this model distinguishes the free-state from congested state of traffic. Our results show that the threshold of traffic percolation decreases with increasing traffic volume and reaches a minimum value at the critical traffic volume. We show that this minimal threshold is the result of longest spatial correlation between traffic flows at the critical traffic volume. These findings may help to dev...

  2. Evaluating and optimizing resilience of airport pavement networks

    DEFF Research Database (Denmark)

    Faturechi, Reza; Levenberg, Eyal; Miller-Hooks, Elise

    2014-01-01

    This paper addresses the problem of assessing and maximizing the resilience of an airport's runway and taxiway network under multiple potential damage-meteorological scenarios. The problem is formulated as a stochastic integer program with recourse and an exact solution methodology based on the i......This paper addresses the problem of assessing and maximizing the resilience of an airport's runway and taxiway network under multiple potential damage-meteorological scenarios. The problem is formulated as a stochastic integer program with recourse and an exact solution methodology based...... levels taking into account operational, budgetary, time, space, and physical resource limitations. Details, such as aircraft size impacts, reductions in capacity due to joint takeoff and landing maneuvers on common runways or bidirectional flows on taxiways, potential for outsourcing repair work...

  3. Meteorological and air pollution modeling for an urban airport

    Science.gov (United States)

    Swan, P. R.; Lee, I. Y.

    1980-01-01

    Results are presented of numerical experiments modeling meteorology, multiple pollutant sources, and nonlinear photochemical reactions for the case of an airport in a large urban area with complex terrain. A planetary boundary-layer model which predicts the mixing depth and generates wind, moisture, and temperature fields was used; it utilizes only surface and synoptic boundary conditions as input data. A version of the Hecht-Seinfeld-Dodge chemical kinetics model is integrated with a new, rapid numerical technique; both the San Francisco Bay Area Air Quality Management District source inventory and the San Jose Airport aircraft inventory are utilized. The air quality model results are presented in contour plots; the combined results illustrate that the highly nonlinear interactions which are present require that the chemistry and meteorology be considered simultaneously to make a valid assessment of the effects of individual sources on regional air quality.

  4. Saying Farewell to Mayor Garcetti at Beijing Airport

    Institute of Scientific and Technical Information of China (English)

    Zhang; Heqiang

    2015-01-01

    Sometimes work at the CPAFFC can be filled with many unexpected and joyful encounters.Last November23,when I returned from a visit to New Zealand,my colleague asked me if I could see off Los Angeles Mayor Eric Garcetti at Beijing Capital International Airport the next morning.When I agreed to go,I had no inkling it would turn out to be such an

  5. Report of Accomplishments under the Airport Improvement Program.

    Science.gov (United States)

    1983-09-30

    jHON ;’’MM IN C’IIN’Y .. 𔃻’’ MN’ (G;EN ERAL Av IAT7IJN) S %𔄀 -. . -<kc ’ *~~ * - . . . .- --. AIRPORs ’TRANTIN AID) PROCBRAM PROJECIS PLACID) t- C1 O T...name Proj. Federal of airport no. funds Description ot work R U S 𔃼 PR I ." 0 P (1,NT’N J w) ENENELIP ISLAND 02 $ 225,000 RUNWAY CR0. MARSHALL

  6. Calculation of odour emissions from aircraft engines at Copenhagen Airport.

    Science.gov (United States)

    Winther, Morten; Kousgaard, Uffe; Oxbøl, Arne

    2006-07-31

    In a new approach the odour emissions from aircraft engines at Copenhagen Airport are calculated using actual fuel flow and emission measurements (one main engine and one APU: Auxiliary Power Unit), odour panel results, engine specific data and aircraft operational data for seven busy days. The calculation principle assumes a linear relation between odour and HC emissions. Using a digitalisation of the aircraft movements in the airport area, the results are depicted on grid maps, clearly reflecting aircraft operational statistics as single flights or total activity during a whole day. The results clearly reflect the short-term temporal fluctuations of the emissions of odour (and exhaust gases). Aircraft operating at low engine thrust (taxiing, queuing and landing) have a total odour emission share of almost 98%, whereas the shares for the take off/climb out phases (2%) and APU usage (0.5%) are only marginal. In most hours of the day, the largest odour emissions occur, when the total amount of fuel burned during idle is high. However, significantly higher HC emissions for one specific engine cause considerable amounts of odour emissions during limited time periods. The experimentally derived odour emission factor of 57 OU/mg HC is within the range of 23 and 110 OU/mg HC used in other airport odour studies. The distribution of odour emission results between aircraft operational phases also correspond very well with the results for these other studies. The present study uses measurement data for a representative engine. However, the uncertainties become large when the experimental data is used to estimate the odour emissions for all aircraft engines. More experimental data is needed to increase inventory accuracy, and in terms of completeness it is recommended to make odour emission estimates also for engine start and the fuelling of aircraft at Copenhagen Airport in the future.

  7. Report of Accomplishments under the Airport Improvement Program.

    Science.gov (United States)

    1985-01-01

    MUNICIPAL-WEBB FIELD (COMMERCIAL SERVICE) CALIFORNIA Ml 1 $36,000 REGIONAL SYSTEM PLAN UPDATE MONTEREY BAY METROPOLITAN AREA (SYSTEM PLAN) M3 $22,500...1985 LOCATION AND PROJECT FEDERAL NAME OF AIRPORT NUMBER FUNDS DESCRIPTION OF WORK a.’, CALIFORNIA (CONTINUED) MODESTO 03 $53,550 MASTER PLAN STUDY...1,950,000 REHABILITATE RUNWAY PUEBLO MEMORIAL (COMMERCIAL SERVICE) SALIDA 01 $200,000 EXPAND APRON HARRIET ALEXANDER FIELD -(GENERAL AVIATION

  8. Accomplishments under the Airport Improvement Program: Fiscal Year 1988

    Science.gov (United States)

    1988-01-01

    DEVELOPMENT AND WEST MEMPHIS MUNICIPAL APPROACHES (RELIEVER) CALIFORNIA M4 $345,511 CONDUCT AIRPORT SYSTEM PLAN UPDATE SAN DIEGO METROPOLITAN AREA (SYSTEM...PLAN) M8 $340,500 CONDUCT METROPOLITAN SYSTEM PLAN UPDATE SIX SOUTHERN CALIFORNIA COUNTIES (SITE IDENTIFICATION NEW COMMERCIAL (SYSTEM PLAN) SERVICE...FENCING SALIDA 02 $94,133 CONDUCT MASTER PLAN UPDATE; EXTEND HARRIET ALEXANDER FIELD RUNWAY AND RELOCATE ROAD (DESIGN ONLY); (GENERAL AVIATION) ACQUIRE LAND

  9. Survey of Technologies for the Airport Border of the Future

    Science.gov (United States)

    2014-04-01

    malls and duty free shopping . However, any further attempt to increase revenue depends on the capacity of the terminals to accommodate the passengers as...the design of signage system in various enclosed environments including airport terminals, multi-function railway stations, and shopping malls ...rebooking when flights are missed or canceled. Another possibility is paying for amenities such as food and beverages. Kiosk operations by US Airways

  10. Data on noise environments at different times of day around airports

    Science.gov (United States)

    Fields, J. M.

    1985-01-01

    Sources of information about noise environments at different times of the day at civilian and military airports are identified. Information about movements of scheduled flights are available in machine readable form from the Official Airline Guide. Information about permanent noise monitoring sites is readily obtained from individual airports. Limited data on the timing of flights are available at centralized locations for military airports. An examination of scheduled flights at commercial airports leads to the conclusion that differences between daytime and nighttime noise levels (measured in Equivalent Continuous Noise Level, LEQ) vary from 7 to 15 decibels. Data from 128 permanent noise monitoring sites at 11 airports are also examined. Differences between daytime and nighttime noise levels at these 128 noise monitoring sites vary from 3 to 17 decibels (LEQ). Preliminary analyses suggest that accurate estimates of time-of-day weights could not be obtained from conventional social surveys at existing airports.

  11. Traffic Signal Using Smart Agent System

    Directory of Open Access Journals (Sweden)

    Cheonshik Kim

    2008-01-01

    Full Text Available In this research, we propose an electro-sensitive traffic light using the smart agent algorithm to reduce traffic congestion and traffic accidents. The multi-agent system approach can provide a new and preferable solution. The proposed method adaptively controls the cycle of traffic signals even though the traffic volume varies. Consequently, we reduce the car waiting time and start-up delay time using fuzzy control of feedback data. In particular, we have designed and implemented a system to create optimum traffic signals in congested conditions. The effectiveness of this method was shown through simulation of multiple intersections.

  12. Structure Model of Urban Traffic System Evolution

    Institute of Scientific and Technical Information of China (English)

    JIANG Ke-jin; ZHANG Dian-ye

    2008-01-01

    A structure model of urban traffic system evolution is built based on the analysis of the factors influencing the system evolution and the hierarchy between the factors. Then the influencing degrees of the factors are quantificationally analyzed by DEMATE (decision making trial and evaluation laboratory). The analysis results indicate that the traffic mode structure which achieves the highest central degree is the dominant influencing factor of the urban traffic system evolution, and that economy development and the traffic poficy axe the second important factors that also affect the traffic mode structures. Furthermore, physical geography is a basic restriction to the urban traffic system evolution.

  13. Simulation Model of Traffic Jam at Crossroads

    Directory of Open Access Journals (Sweden)

    Mladen Kalajžić

    2002-11-01

    Full Text Available Traffic congestion is one of the major problems in most cities.It is the consequence of unavoidable motorization, butalso, in many cases, of improper solutions considering constructionof roads or organisation of traffic.This paper deals with one problematic crossroad in thetown of Zadar in which traffic jams occur due to poor organisationof traffic. Using mathematical simulation, the first partproves that traffic jams will certainly occur, and in the secondpart, crossroads signalling is considered as a possible solutionwhich, if combined with intelligent control could significantlyimprove the organisation of traffic at this crossroads.

  14. Hidden geometry of traffic jamming

    Science.gov (United States)

    Andjelković, Miroslav; Gupte, Neelima; Tadić, Bosiljka

    2015-05-01

    We introduce an approach based on algebraic topological methods that allow an accurate characterization of jamming in dynamical systems with queues. As a prototype system, we analyze the traffic of information packets with navigation and queuing at nodes on a network substrate in distinct dynamical regimes. A temporal sequence of traffic density fluctuations is mapped onto a mathematical graph in which each vertex denotes one dynamical state of the system. The coupling complexity between these states is revealed by classifying agglomerates of high-dimensional cliques that are intermingled at different topological levels and quantified by a set of geometrical and entropy measures. The free-flow, jamming, and congested traffic regimes result in graphs of different structure, while the largest geometrical complexity and minimum entropy mark the edge of the jamming region.

  15. On vehicular traffic data analysis

    Energy Technology Data Exchange (ETDEWEB)

    Brics, Martins; Mahnke, Reinhard [Institute of Physics, Rostock University (Germany)

    2011-07-01

    This contribution consists of analysis of empirical vehicular traffic flow data. The main focus lies on the Next Generation Simulation (NGSIM) data. The first findings show that there are artificial structures within the data due to errors of monitoring as well as smoothing position measurement data. As a result speed data show discretisation in 5 feet per second. The aim of this investigation is to construct microscopic traffic flow models which are in agreement to the analysed empirical data. The ongoing work follows the subject of research summarized by Christof Liebe in his PhD thesis entitled ''Physics of traffic flow: Empirical data and dynamical models'' (Rostock, 2010).

  16. Research of Airport-regional Economy System Based on System Dynamics

    Institute of Scientific and Technical Information of China (English)

    Zhang Xiaohu

    2015-01-01

    Research of airport' s influence on regional economy is conducted based on system dynamics, combining with input- output method and multiplier effect. SD model was used for visualizing, modeling and simulating airport-regional economy system behavior. Model validation using the example of the Xi' an airport proved model simulated system behavior accurately. Besides, the result of scenario development simulation provided a new perspective for the practice of airport management and policy-making.

  17. The Concept of Method for Determining the Minimum Level of Airport Business Continuity

    Directory of Open Access Journals (Sweden)

    Kozłowski Michał

    2016-07-01

    Full Text Available The paper presents the problem of determining the minimum acceptable level of products and services of airport business continuity. Conducted a study of legal requirements and operational needs. Characterized components of BCMS (ISO 22301. Determined the relationship between measures of the reliability and capacity in the airport BCMS. On this basis, presented a concept of use the reliability gamma-percent resource measure and RCM methods in the airport BCMS.

  18. [Study of 6 cases of malaria acquired near Roissy-Charles-de-Gaulle in 1994. Necessary prevention measures in airports].

    Science.gov (United States)

    Giacomini, T; Mouchet, J; Mathieu, P; Petithory, J C

    1995-02-01

    During the very hot 1994 summer, six new cases of airport malaria have been observed in and around Roissy-Charles-de-Gaulle airport. Four patients were regular or occasional airport employees. The two other cases were inhabitants of a city at 7 km. Entomological investigations suggest that cars of airport employees served to disseminate anophelines outside the airport areas. The six cases were very severe. One patient died. Apparently, W.H.O. recommendations on aircraft disinsecting procedures have not been fully followed. There is obviously a threat for areas near the airports.

  19. Traffic and Granular Flow '11

    CERN Document Server

    Buslaev, Alexander; Bugaev, Alexander; Yashina, Marina; Schadschneider, Andreas; Schreckenberg, Michael; TGF11

    2013-01-01

    This book continues the biannual series of conference proceedings, which has become a classical reference resource in traffic and granular research alike. It addresses new developments at the interface between physics, engineering and computational science. Complex systems, where many simple agents, be they vehicles or particles, give rise to surprising and fascinating phenomena.   The contributions collected in these proceedings cover several research fields, all of which deal with transport. Topics include highway, pedestrian and internet traffic, granular matter, biological transport, transport networks, data acquisition, data analysis and technological applications. Different perspectives, i.e. modeling, simulations, experiments and phenomenological observations, are considered.

  20. Traffic-Sign Recognition Systems

    CERN Document Server

    Escalera, Sergio

    2011-01-01

    This work presents a full generic approach to the detection and recognition of traffic signs. The approach is based on the latest computer vision methods for object detection, and on powerful methods for multiclass classification. The challenge was to robustly detect a set of different sign classes in real time, and to classify each detected sign into a large, extensible set of classes. To address this challenge, several state-of-the-art methods were developed that can be used for different recognition problems. Following an introduction to the problems of traffic sign detection and categoriza