Agerholm, Niels; Møller, Jørgen
Rural transportation is facing the challenges of the required mobility increasing and the public transportation parallel being limited to a deficient level. A new mobility application (app) based on Intelligent Transport Systems (ITS), called Intelligent Carpooling, can be a significant contribut...
Shriram S. Kulkarni
Full Text Available Carpooling (also known as car-sharing, ride-sharingand lift sharing, is the sharing of car journeys so that more thanone person travels in a single car . Carpooling consists ofsharing one’s personal vehicles with one or several passengers inwhich the related passengers shares the related costs but also helpto reduce the traffic as well as pollution. One major issue incarpooling is the prior agreement between the car owner and theride seekers. Dynamic carpooling uses an IT system to removethis limitation and provide ways to react to events such as a trafficjam as well as improving the quality of life benefits of participatingpeople. But it requires accessing potentially sensitive informationsuch as the real time users’ position or their identity. So there mustbe an efficient security mechanism should be implemented toprotect data exchanged to provide the service but also to increasethe users’ confidence in the tool. This paper mostly focuses on thesecurity services allowing both the mutual authentication of theusers and of the application components with the system.Traffic congestion and the associated pressure in car parking,that results from increased number of cars on the road ,it requirethe study of innovative measures to reduce the number of carstraveling every day to the main areas in the city, specifically singleoccupant vehicles.
In the light of the increasingly severe traffic congestion in the city, the rising number of private cars on the road and the low occupancy rate of those cars, this paper explores the current legal obstacles to carpooling and proposes "neighborhood carpooling" as an innovative mobility project aimed at alleviating traffic pressure in the areas around residential districts and reducing the use of private cars. The paper begins by introducing the preparatory investigation, consultation and scheme design process, and then elaborates on the series of measures undertaken to ensure that the project runs smoothly, including the formulation and distribution of the proposal, establishment of carpooling stations, registration and management of carpooling information, signing of the voluntary undertakings, design of the carpooling stickers and encouragement of public participation through the media. The analysis of different data on the actual practice of carpooling and the results of the media survey shows that the "neighborhood carpooling" project can indeed reduce private car use and has achieved certain social benefits through media publicity. Finally, the paper points out that with the guarantee of the two-level management system involving the community administrative committee and the residents’ committees, effective community organization is the key to the successful operation of the project.
Full Text Available For the problem of route choice in taxi carpooling detour, considering the uncertainty of traffic and the characteristic of passengers’ noncomplete rationality, an evolutionary game model of taxi carpooling detour route is built, in which prospect theory is introduced and revenue of strategy is replaced by prospect value. The model reflects more really decision-making psychology of passengers. Then the stable strategies of the model are studied, and the influences of detour distance and traffic congestion on detour carpooling success are analyzed, respectively. The results show that when at least one route of which prospect values for two passenger sides are both positive exists, carpooling route can reach an agreement. The route is stable strategy of evolutionary game, and the passengers requiring short travel time tend to select the nondetour route. With the increase of detour distance and traffic congestion rate, the possibility of reaching an agreement decreases gradually; that is, possibility of carpooling failure increases. So taxi carpooling detour is possible under the certain condition, but some measures must be carried out such as constraints of detour distance and mitigation of traffic congestion to improve carpooling success probability. These conclusions have a certain guiding significance to the formulation of taxi carpooling policy.
谭家美; 朱丽叶; 南香兰; 侯立文
In consideration of the factors which influence Internet carpool,a carpool website is selected as data source,and regression analysis and Design of Experiment (DOE) are used to analyze the factors which influence carpooling behavior on the Internet and the impact strength of the factors influencing the actual carpool success and the number of carpool applicants.The results show that the number of carpool replies and clicks has positive impact on the success rate of carpooling.As for the carpool website,appropriate measures should be adopted to motivate the number of replies and clicks,thus to enhance the website activeness.From the perspective of society,higher involvement of carpool needs more government policy support.%针对影响互联网拼车的因素,选择某拼车网站为数据来源,采用回归分析和试验设计(Design of Experiment,DOE)方法,分析影响网上拼车行为的因素及其对实际拼车成功和拼车申请人数的影响强度.结果表明,拼车信息回复数和点击数对拼车成功率有正面影响；对于拼车网站而言,可以采取适当的鼓励措施提高点击数和回复数,从而增强网站活跃度；从社会整体而言,提高拼车参与率更需要有相关政策的支持.
Keila Rodrigues De Moura
Full Text Available The world is undergoing major changes due to technological innovations, which make life easier for people, however, has caused great impacts in relation to urban mobility and the environment. Traffic is one of the main problems of the modern era, however, difficult people leave the comfort of the car by collective alternatives. The carpooling or car sharing is an alternative for sustainable traffic improvement, since it can help to reduce the number of vehicles circulating on the public highway and hence to the environment. The aim of this study is to evaluate the acceptance of carpooling among students of a college in the city of Botucatu, and to identify characteristics associated with interest in participating in a program of carpooling. For this, an observational study using a sample survey was conducted among the students of a public institution of higher learning, using a structured questionnaire to collect data, and the sample of students obtained through a random process. After collecting the data, they were analyzed using descriptive statistics and the Goodman test to study the association between variables. It was found that only 5.5% of respondents did not have an interest in giving a ride to a colleague or employee of the institution and that gender, age, period studying and ownership of a vehicle are not associated with interest in participating in a carpooling program.
Private vehicles are a significant source of air pollution in many areas of the United States. Areas with already high levels of air pollution are required by the Clean Air Act to take steps to reduce automobile use and the associated emissions. The behavioral implications of many travel demand management techniques are poorly understood. In this dissertation I focus on carpooling. Policy makers encourage commuters to carpool through High Occupancy Vehicle (HOV) Lanes, fre...
Chou, Sheng-Kai; Jiau, Ming-Kai; Huang, Shih-Chia
The growing ubiquity of vehicles has led to increased concerns about environmental issues. These concerns can be mitigated by implementing an effective carpool service. In an intelligent carpool system, an automated service process assists carpool participants in determining routes and matches. It is a discrete optimization problem that involves a system-wide condition as well as participants' expectations. In this paper, we solve the carpool service problem (CSP) to provide satisfactory ride matches. To this end, we developed a particle swarm carpool algorithm based on stochastic set-based particle swarm optimization (PSO). Our method introduces stochastic coding to augment traditional particles, and uses three terminologies to represent a particle: 1) particle position; 2) particle view; and 3) particle velocity. In this way, the set-based PSO (S-PSO) can be realized by local exploration. In the simulation and experiments, two kind of discrete PSOs-S-PSO and binary PSO (BPSO)-and a genetic algorithm (GA) are compared and examined using tested benchmarks that simulate a real-world metropolis. We observed that the S-PSO outperformed the BPSO and the GA thoroughly. Moreover, our method yielded the best result in a statistical test and successfully obtained numerical results for meeting the optimization objectives of the CSP. PMID:26890944
张璇; 朱菁; 董欣
With the rapid increase of private car ownership and ever worsening urban traffic congestion in Xi'an, community carpool has become one of the effective ways to relieve traffic congestion. Based on do-mestic and abroad carpool development experience, this paper discusses the existing conditions and prob-lems in carpool development in Xi'an through questionnaire survey and interviews. Targeting existing problems, the paper proposes implementable strategies for community carpool promotion. Firstly, carpool agencies are suggested to be established in the community with service platforms, stations, and signs to manage carpool travel;Secondly, safety assurance measures such as real-name registration system, neigh-borhood carpool agreements, and additional types of insurance are proposed to endure safe carpool service;Thirdly, providing policy support to encourage carpool travel by prioritizing carpool vehicle roadway us-age, promoting legislative improvement, and offering parking promotion policies.%伴随西安市私人小汽车保有量迅速增长,城市交通拥堵状况不断加剧,社区拼车模式成为缓解交通拥堵的有效措施之一.通过分析总结国内外拼车发展经验,采用问卷调查、访谈等方法对西安市拼车现状和发展问题进行解析.针对现状问题,提出社区拼车的实施策略:第一,成立社区拼车机构,通过拼车服务平台、社区拼车站点和社区拼车标志等措施管理拼车出行;第二,提供安全保障措施,通过设立实名认证体系、签订社区拼车协议、增加险种等措施保障拼车安全;第三,寻求政策支持,建议通过赋予多人乘坐的拼车车辆道路优先使用权、完善相关法律法规使拼车合法化、提供停车优惠政策等措施鼓励市民拼车.
Cuadrado Borbonés, Jordi
El proyecto que se presenta a continuación, Creación e implantación en el Racó de un sistema para Carpool, surge para cubrir la necesidad de mejorar la eficiencia de los desplazamientos en vehículo privado a y desde el Campus Nord de Barcelona, generados por la propia actividad docente de la Facultat d’Informàtica de Barcelona. El proyecto se enmarca en la idea de una mejor gestión de la movilidad en cuanto al vehículo privado se refiere, llevándola a criterios más racionales y...
张薇; 何瑞春; 肖强; 马昌喜
针对出租车合乘模式下司机的收入问题,建立了合乘模式下司机收入公平心理模型,采用公平理论分析了司机的心理及行为,通过仿真计算,分析了合乘模式下乘客总需求量及司机公平心理对司机收入的影响.研究结果表明,乘客总需求对合乘模式下司机总体的平均收入有较大的影响,合适的供需比下实施合乘才能提高司机收入;在供需比较大时,司机争抢乘客的行为会导致司机个体收入差距增大,部分司机收入降低的现象;为成功实施合乘模式,必须考虑当地出租车市场的供需比情况,并且建立合理的措施以防范司机争抢乘客的行为出现.所得结论对出租车合乘政策的制定与管理有一定的指导意义.%Considering taxi driver psychology for equity, driver income under taxi carpooling mode is researched. Equity psychology model of driver income under carpooling mode is established, and psychology and behavior of drivers are analyzed based on equity theory. Then the influence of total passenger demand and driver behavior on income is analyzed through simulation. The results show that, the influence of total passengers demand on driver average income is large, and the appropriate ratio of supply and demand is the key factor of increasing driver income; when the ratio is big, the driver behavior for passengers causes the gap between drivers income increasing and some drivers income lowing; in order to implement successfully carpooling, it is necessary to consider the ratio of supply and demand of local taxi market, and establish reasonable measures to prevent driver behavior for passengers. These conclusions have a certain guiding significance to formulating taxi policy.
Campos, Márcia da Conceição Antunes
Dissertação apresentada para obtenção do grau de Mestre em Planeamento e Projecto do Ambiente Urbano, nas Faculdades de Arquitectura e Engenharia da Universidade do Porto, sob a orientação do professor Doutor Álvaro Fernando de Oliveira Costa
Kenneth A. Small; Clifford Winston; Jia Yan
In the face of rising congestion on the nation's road system, policymakers have explored ways to reduce travel delays. One approach has been to allocate reserved lanes, called high-occupancy-vehicle (HOV) lanes, to vehicles carrying two or more people. A recent innovation is to allow solo drivers to use the HOV lanes if they pay a toll. These so-called high-occupancy-toll (HOT) lanes can be found in Los Angeles, San Diego, Houston, and Minneapolis and are under consideration in several other ...
A photo report of the following three treks by illegal aliens across the border from Mexico to work in Arizona reveals the dangers and disappointments the migrants are exposed to: (1) a "carpool" from Southern Mexico; (2) a train ride from Sinaloa; and (3) a 40-mile hike through the Arizona desert. (PS)
Foehr, Ulla G.
In the past, multitasking was a juggling act performed by busy adults, as they tried to manage jobs, chores, carpools, and PTA meetings. But recently, teens and tweens have turned into the real experts at multitasking, as their lives become chock-full of organized activities. For them, multitasking has simply become a way of life: "If I couldn't…
Guise, Eric; Puckett, Kathy
This resource guide and supplement contain class activities and discussion pieces for use in integrating energy education into driver education. Included are such activities as survey-taking, fuel consumption calculations, and extensive examination of transportation alternatives such as bicycling, carpooling, mass transit, and alternative means of…
This volume contains technical material related to community energy conservation programs, and supplements the organizational material in Volume I. It is in looseleaf format so that sections related to specific topics can be easily copied or transferred to individuals responsible for various sorts of conservation, such as carpooling programs, building improvements, and community outreach. Three technical chapters are included, discussing topics in the areas of: internal city and county operations; community powers and regulations, and outreach programs. In the first, the concern is with what the community can do to reduce energy use in its own operations, an effective first step in promoting comprehensive energy conservation. The second chapter analyzes ways that the police power and fiscal powers of the community can be used for energy conservation, through building codes, zoning, and similar measures. In the final chapter, ways to promote energy conservation in the community are discussed: programs include outreach to households and firms, carpool promotion, waste oil recycling, etc.
Congestion on Canadian highways is having a significant negative economic impact on major Canadian cities. Rather than face the political challenge of introducing road tolls to discourage traffic, governments have chosen to build carpool lanes on urban highways, despite evidence that these lanes have limited effectiveness in curbing congestion. Policymakers in major Canadian cities need realistic options for reducing the economic cost of congestion and increasing revenue for transportation in...
Kim, Sukwon; Effros, Michelle; Ho, Tracey
Previous results on network coding for low-power wireless transmissions of multiple unicasts rely on opportunistic coding or centralized optimization to reduce the power consumption. This paper proposes a distributed strategy for reducing the power consumption in a network coded wireless network with multiple unicasts. We apply a simple network coding strategy called “reverse carpooling,” which uses only XOR and forwarding operations. In this paper, we use the rectangu...
Nowadays cities are affected by the increasing number of cars. Car traffic leads to considerable problems related with congestion, parking, accidents as well as environmental pollution. Thus a very important issue is change of people’s mobility, behaviours towards more sustainable transport modes: public transport, bikes, walking trips or shared car usage – carpooling and carsharing systems. We can shape the travellers’ attitudes and behaviours using the mobility management concept. Mobility ...
Analysis of the daily mobility of French households reveals some changes in their use of the different modes of transport available to them. While use of the private car is still predominant, the use of other transport modes is changing, depending on the socio-economic characteristics of households and areas of residence. New mobility services such as car-pooling or car sharing now complement the transport facilities available to individuals. (authors)
Jeung, Hoyoung; Yiu, Man Lung; Zhou, Xiaofang;
group of objects that have traveled together for some time. More specifically, this paper formalizes the concept of a convoy query using density-based notions, in order to capture groups of arbitrary extents and shapes. Convoy discovery is relevant for real-life applications in throughput planning of...... trucks and carpooling of vehicles. Although there has been extensive research on trajectories in the literature, none of this can be applied to retrieve correctly exact convoy result sets. Motivated by this, we develop three efficient algorithms for convoy discovery that adopt the well-known filter...
This report presents data compiled on the estimated energy conservation achieved by programs included in the Illinois Energy Conservation Plan. Summaries are given for the following areas: thermal and lighting standards; state and local procurement standards; carpooling, vanpooling, and public transit; right turn on red; energy data information system; Homeowner's Extension Program; agricultural resource applications; Farm Energy Conservation Program; Commercial Industrial Program; Public Utilities Program; School Energy Management Program; energy management assistance to local government; Administration of State Plan; energy conservation information; energy management for state buildings; solar energy; waste to energy and resource recovery; intergovernmental coordination; community technology assistance.
An area of growing concern is the future stability of oil producing regions and the ability to maintain stability in international petroleum markets. The transport sector, in particular, is extremely vulnerable to short-term supply disruptions with consequent implications on economic activities in most countries. This paper analyses potential transport demand restraint strategies that could potentially mitigate the impact of short-term supply disruptions. Our analysis includes estimates of the potential fuel savings from several policies. Specifically, we examine various work-based policies (telecommuting, flexible work schedules), the potential of carpooling, speed limit reductions, driving bans and restrictions, increased public transport usage, and providing information on the effect of maintaining optimal tire pressures. The analysis uses various assumptions based on existing knowledge about how travelers may respond under emergency conditions to develop estimates of potential fuel savings. Results suggest that the most restrictive policies, such as driving bans and mandatory carpooling are the most effective. Other policies provide small reductions with some, such as telecommuting and flexible work schedules, having the potential to be easily implemented. Those policies, focussed on encouraging public transport use, are less effective and potentially more costly to implement
Glass, D. S.
Many schools require community service yet students work at a food bank or stream clean-up without understanding causes or solutions for the issues they encounter. Since students learn best when they make connections between scientific concepts and real-world issues that interest them, integrated science service learning is an effective and engaging way to teach. My fifth grade students at National Presbyterian School in Washington, DC learned about climate change through a service learning project to help the environment on campus. The curriculum was aligned with science and climate literacy frameworks, "Benchmarks for Science Literacy," from the American Academy for the Advancement of Science (AAAS) and "The Essential Principles of Climate Sciences," from the U.S. Global Change Research Program / U.S. Climate Change Science Program, and was supported through partnership with NOAA's Climate Stewards Education Program. The service learning project was implemented according to seven best practices of service learning: the students initiated the project, researched the issue, developed a plan, worked with the community, shared their results, reflected on the project, and celebrated their accomplishment. My class of 28 fifth-graders researched and experimented with several environmental variables affecting our campus. They brainstormed service projects they could do to help the environment and decided to focus on reducing idling in the school carpool lane. Students researched how automobile exhaust contributes to climate change, causes acid rain, and harms human health. Students designed a system to measure and eventually minimize the exhaust released by cars idling in the carpool line. They crafted a tally sheet to record the number and size of cars and their idling times. They measured temperature and CO2 data, although they did not find that the number of idling cars affected these variables. Students concluded that over an average week with pleasant weather, 35 of
Chen, Yee Ming; Shiu, Hung-Ming
We are exploring the enhancement of models of agent behaviour with more "human-like" decision making strategies than are presently available. Our motivation is to developed with a view to as the decision analysis and support for electric taxi company under the mission of energy saving and reduction of CO2, in particular car-pool and car-sharing management policies. In order to achieve the object of decision analysis for user, we provide a human-agents interactive spatial behaviour to support user making decision real time. We adopt passenger average waiting time and electric taxi average idle time as the performance measures and decision support fro electric taxi company. Finally, according to the analysis result, we demonstrate that our multi-agent simulation and GUI can help users or companies quickly make a quality and accurate decision to reduce the decision-making cost and time.
The energy-savings and energy-management programs set up by state agencies in New Mexico are presented. Also the energy-savings and energy-management programs for public schools are presented. Plans and summaries are also given for the following program: solar water heaters for secondary schools; solar portable classroom demonstration; energy-savings and energy-management programs for county and municipal governments; energy-savings programs for commercial and residential sectors; weatherization; solar sustenance; energy-savings programs for hospitals and industrial buildings; carpools and vanpools; a program encouraging compliance with the national 55-mph speed limit; waste-oil recycling; utilitites; agriculture; procurement; modification; public information; and an administrative packet containing information on how to facilitate internal accounting procedures.
Jeung, Hoyoung; Zhou, Xiaofang; Jensen, Christian S; Shen, Heng Tao
As mobile devices with positioning capabilities continue to proliferate, data management for so-called trajectory databases that capture the historical movements of populations of moving objects becomes important. This paper considers the querying of such databases for convoys, a convoy being a group of objects that have traveled together for some time. More specifically, this paper formalizes the concept of a convoy query using density-based notions, in order to capture groups of arbitrary extents and shapes. Convoy discovery is relevant for real-life applications in throughput planning of trucks and carpooling of vehicles. Although there has been extensive research on trajectories in the literature, none of this can be applied to retrieve correctly exact convoy result sets. Motivated by this, we develop three efficient algorithms for convoy discovery that adopt the well-known filter-refinement framework. In the filter step, we apply line-simplification techniques on the trajectories and establish distance b...
Every IEA member state must have in place measures to reduce oil demand during oil supply emergencies. The transport sector offers significant opportunities to reduce oil demand with relatively limited impact on the overall economy. To determine which measures are useful in the Dutch situation, this report performs a quick scan of a number of demand restraint measures in the transport sector. The quick scan ranks measures by their effectiveness, feasibility, and efficiency. Based on the quick scan results, three measures have been selected for further research (Sunday driving ban, work-trip reduction, and carpooling). Additionally, the effects of price increases on oil demand have been examined. Five refineries and a large petrochemical industry sector are based in the Netherlands. Therefore, the shares of passenger road transport (20%) and freight road transport (12%) in the national oil demand are comparatively low. As a consequence an oil demand reduction in road transport of at least 20% to 30% is required to meet the national oil demand reduction target of 7% to 10% agreed within IEA. Price effects during an oil crisis are uncertain given limited research, and estimated to reduce oil demand from passenger road transport by 15% to 35% and oil demand from freight road transport by 10% to 25%. Given the uncertainty, this effect was halved to obtain a conservative estimate of 2% to 4% of national oil demand reduction as a result of price effects. A Sunday driving ban can lead to reductions of 50% to 80% of passenger travel on Sundays, leading to savings of 1% to 1.5% of national oil demand. Work-trip reduction policies can reduce worktrips by 10% and lead to reductions of 0.5% to 1% of total oil demand. Carpooling has the greatest potential, reducing work trips up to 30% and leading to 0% to 2.5% savings of national oil demand. The broad range of the latter estimate is due to the limited options available to influence motorists to share their vehicles with others
Evans, Laurel; Maio, Gregory R.; Corner, Adam; Hodgetts, Carl J.; Ahmed, Sameera; Hahn, Ulrike
Inspired by the principles used to market physical products, campaigns to promote pro-environmental behaviour have increasingly emphasized self-interested (for example, economic) reasons for engaging with a self-transcendent cause (that is, protecting the environment). Yet, psychological evidence about values and behaviour suggests that giving self-interested reasons, rather than self-transcending reasons, to carry out a self-transcending action should be ineffective at increasing self-transcending behaviour more generally. In other words, such a campaign may fail to cause spillover, or an increase in other, different environmental behaviours. Here we show that recycling rates are dependent on the information participants receive about a separate environmental behaviour, car-sharing (carpooling in the USA). In two experiments, we found that recycling was significantly higher than control when participants received environmental information about car-sharing, but was no different from control when they received financial information or (in experiment 2) received both financial and environmental information. Our results suggest that, congruent with value theory, positive spillover from one environmental message to another behaviour (car-sharing to recycling) may occur primarily when self-transcending reasons alone are made salient.
During 2004, oil prices reached levels unprecedented in recent years. Though world oil markets remain adequately supplied, high oil prices do reflect increasingly uncertain conditions. Many IEA member countries and non-member countries alike are looking for ways to improve their capability to handle market volatility and possible supply disruptions in the future. This book aims to provide assistance. It provides a new, quantitative assessment of the potential oil savings and costs of rapid oil demand restraint measures for transport. Some measures may make sense under any circumstances; others are primarily useful in emergency situations. All can be implemented on short notice ? if governments are prepared. The book examines potential approaches for rapid uptake of telecommuting, ?ecodriving?, and car-pooling, among other measures. It also provides methodologies and data that policymakers can use to decide which measures would be best adapted to their national circumstances. This ?tool box? may help countries to complement other measures for coping with supply disruptions, such as use of strategic oil stocks.
Full Text Available After initial enthusiasm by motor vehicles, society is lately increasingly noticing their shortcomings. Traffic problems caused by excessive use of cars, still represent a very serious and widespread problem, particularly in cities. Public opinion expresses dissatisfaction with the quality of the environment and traffic conditions. As the most important demand, the demand for human health stands out in the first place, and, consequently, the demand for sustainable transport development. The fact that the EU is involved in solving traffic problems by means of various directives and scientific research projects, points out the seriousness of the problem. Two solutions which are mainly used for solving traffic problems in cities are the construction or extension of existing transport infrastructure and traffic demand management (TDM. Traffic demand management is a new paradigm, which aims at reducing or transforming of traffic demand through reduction of unnecessary drives by cars and improvement of more efficient, healthier and, above all, cleaner forms of public and non-motorized transport. There is a whole range of methods for traffic demand management, such as Park & Ride system, carpooling, carsharing, priority for the vehicles with specified number of passenger – HOV, teleworking, congestion charging, charging for use of road infrastructure, bicycling infrastructure improvement, etc. The topic of the work focuses on the choice of optimal traffic demand management strategies in the city of Zagreb using multi-criteria analysis.
Ring the changes on Thursday, 4 June by commuting another way! CERN has signed up for the 5th “challenge mobilité Rhône-Alpes”, the aim of which is to encourage people to use modes of transport other than their car to get to work. Are you up for the challenge? Join in the challenge! Sign up using the dedicated CERN form. "Commute another way!" is an initiative launched by the Rhône-Alpes regional authorities and the French environment agency ADEME (l’Agence de l’environnement et de la maîtrise de l’énergie française) to promote alternative ways of travelling to work than the car (excluding carpooling), in private and public-sector organisations across the region. We love this idea and CERN has been signed up to a similar scheme - Bike to Work - for several years. That’s why we’ve decided that CERN should join the Commute-A...
Not used to public transport any longer. A study about transport service based on needs and requirements in Siljansnaes; Man har vant sig av med kollektivtrafik. En studie om transportservice baserad paa behov och vanor i Siljansnaes
The goal of the transport policy is that every citizen shall have a transport service on a reasonable level. In sparsely populated areas the public transport service is on a low level and many groups without a private car will have small possibilities to travel to different activities. Siljansnaes, with nearly 2000 citizens, is a small region in the community Leksand in Dalarna where the transport problem have been more tangible. The aim of this project has been to create a transport system more based on the needs and requirements. Also the people who lives in Siljansnaes in their leisure times are a part in the project. They are almost as many as the permanent living ones. The result also has been built on the goal of a higher care of the environment. The transport solution contains; village-bus, car-pooling, changed price system for public transport, but also a partnership between the citizens, the community and the regional transport company (Dalatrafik). The project as a process has the goal that the people in Siljansnaes should take part of the solution and the responsibility for the operation of the system.
Ni Pt. Emmy Oktariani
Full Text Available Abstract : Employee transportation service is one of the traffic management method that imitate carpooling system which can decrease the used of private vehicle that being use towards the centers of activity with employee transportation services. The purpose of this research are to analyze socio – economic characteristic, operational system, vehicle operating cost and cost reduction. This research was conducted in Lumintang Denpasar. The method that was used in this research include field survey such us questionnaire spreading to the respondent and also doing a direct interview to the related parties. Result of the analysis indicated that the majority of employee’s (88,47% used motorcycle with average travel distance of 5 km’s, 4 employee transportation routes were planned with time cycle between 23 to 58 minutes , headway between 2 to 10 minutes and employee transportation operational cost is between Rp.252.531 to Rp.270.241 every day. operational expense saving with total Rp. 8110.332.019 and fuel saving as much as 6.624 liters a year
Full Text Available Nowadays more and more universities include sustainability into their strategies and intergrate this concept into their activities. Kaunas University of Technology (KTU seeks to gain the status of a sustainable university, therefore, in addition to already common ranges of sustainable management of waste, efficient consumption of water and energy, the importance of the transport sector impact on sustainability is continuously increasing. Based on the mentioned above and analyzing good practices of other EU universities, an attempt to develop sustainable mobility system platform for KTU has been made.Evaluation is done on the KTU current situation, safety of traffic, pollution and noise from cars and other aspects. Also, there is a review of communication by public transport, bicycles and on foot. KTU sustainable mobility system, based on other sustainable universities good practices, is provided. The suggested KTU sustainable mobility system focuses on private cars reduction, public transport, car-pooling, car sharing, cycling and encouragement to walking.DOI: http://dx.doi.org/10.5755/j01.erem.64.2.3155
The costs and potential for several carbon mitigation options were analyzed for Tompkins County, NY, within several categories: terrestrial carbon sequestration, local power generation, transportation, and energy end-use efficiency. The total county emissions are about 340 Gg C/year, with current biomass sequestration rates of about 121 Gg C/year. The potential for mitigation with the options examined, assuming full market penetration, amounts to at least 234 Gg C/year (69%), with 100 Gg C/year (29%) at no net cost to the consumer. Effective carbon mitigation strategies for this county based on costs per mg carbon and maximum potential include reforestation of abandoned agricultural lands for terrestrial carbon sequestration, biomass production for residential heating and co-firing in coal power plants, changes in personal behavior related to transportation (e.g., carpooling or using public transportation), installation of numerous residential energy-efficient products and development of local wind power. The principal barriers to the implementation of these approaches are discussed and policies for overcoming these barriers are analyzed
Heller, James N.; Grossmann, John R.; Shochet, Susan; Bresler, Joel; Duggan, Noreene
The State Energy Conservation Program was established in 1975 to promote energy conservation and to help states develop and implement their own conservation programs. Base (5) and supplemental (3) programs required states to implement programs including: mandatory thermal-efficiency standards and insulation requirements for new and renovated buildings; mandatory lighting efficiency standards for public buildings; mandatory standards and policies affecting the procurement practices of the state and its political subdivisions; program measures to promote the availability and use of carpools, vanpools, and public transportation; a traffic law or regulation which permits a right turn-on-red; and procedures to carry out a continuing public education effort to increase awareness of energy conservation; procedures which promote effective coordination among local, state, and Federal energy conservation programs; and procedures for carrying out energy audits on buildings and industrial plants. All 50 states and Puerto Rico, Guam, the Virgin Islands, American Samoa, and the District of Columbia participated in the program. The total 1980 energy savings projected by the states is about 5.9 quadrillion Btu's or about 7% of the DOE projected 1980 baseline consumption of just under 83 quads. The detailed summary is presented on the following: information the SECP evaluation; DOE response to the SECP; DOE's role in the program management process; the effectiveness of the states in managing the SECP; the status of program measure implementation; innovative state energy conservation programs; and the evaluation methodology.
With the increasing availability of moving-object tracking data, trajectory search and matching is increasingly important. We propose and investigate a novel problem called personalized trajectory matching (PTM). In contrast to conventional trajectory similarity search by spatial distance only, PTM takes into account the significance of each sample point in a query trajectory. A PTM query takes a trajectory with user-specified weights for each sample point in the trajectory as its argument. It returns the trajectory in an argument data set with the highest similarity to the query trajectory. We believe that this type of query may bring significant benefits to users in many popular applications such as route planning, carpooling, friend recommendation, traffic analysis, urban computing, and location-based services in general. PTM query processing faces two challenges: how to prune the search space during the query processing and how to schedule multiple so-called expansion centers effectively. To address these challenges, a novel two-phase search algorithm is proposed that carefully selects a set of expansion centers from the query trajectory and exploits upper and lower bounds to prune the search space in the spatial and temporal domains. An efficiency study reveals that the algorithm explores the minimum search space in both domains. Second, a heuristic search strategy based on priority ranking is developed to schedule the multiple expansion centers, which can further prune the search space and enhance the query efficiency. The performance of the PTM query is studied in extensive experiments based on real and synthetic trajectory data sets. © 2013 Springer-Verlag Berlin Heidelberg.
Moore, A.; Derry, L.
The Cornell Earth and Environmental Systems (EES) Field Program is a semester-length undergraduate field program located on the island of Hawai`i. The Hawaiian Islands are the world’s most dynamic natural laboratory and the premier location for Earth systems research and education. While there are compelling reasons for students and faculty to travel from the US mainland to Hawai`i, the air and ground travel that comprises the program carries a large carbon footprint. This liability is also an extraordinary educational opportunity. For the past two years EES students have been challenged to make the program carbon-neutral. They are asked to devise a set of criteria for a credible and defensible zero-CO2 footprint and then to put their plan into action. The C-neutral project consists of three elements: (1) quantifying CO2 emissions, (2) reducing emissions wherever possible, and (3) offsetting emissions that cannot be eliminated. In quantifying emissions six areas are identified: air travel, ground travel, domestic electricity, natural gas, food, and waste. Emissions reductions include all of the standard “carpool--turn it down--turn it off “ conservation behaviors, with special emphasis on food and waste; eating local and organic, shopping at re-use centers, and compost and recycling of garbage. Our program facility utilizes solar hot water and is equipped with neither heat nor air conditioning, thus domestic energy use is low. Students tabulate all of our energy use and calculate the resulting CO2 emissions for all program participants for a period of four months. The CO2 offsetting strategy is conducted in collaboration with a native ecosystem restoration project. Students participate in all aspects of forest restoration, including seed collection, germination and outplanting of native plant species and removal of invasive pest species. The initial goal of this locally-supported project was to restore degraded pasture to native forest. The EES students have