WorldWideScience

Sample records for catenaries railroads

  1. The Catenary as Roulette

    Science.gov (United States)

    Sanchez-Reyes, Javier S.

    2012-01-01

    The focus of a parabola rolling without sliding along a straight line traces a catenary. We give some historical notes on this classical kinematical construction, observe that it was rediscovered in a recent article, and give a simpler and more geometric alternative derivation.

  2. Catenaries in viscous fluid

    CERN Document Server

    Chakrabarti, Brato

    2015-01-01

    This work explores a simple model of a slender, flexible structure in a uniform flow, providing analytical solutions for the translating, axially flowing equilibria of strings subjected to a uniform body force and drag forces linear in the velocities. The classical catenaries are extended to a five-parameter family of curves. A sixth parameter affects the tension in the curves. Generic configurations are planar, represented by a single first order equation for the tangential angle. The effects of varying parameters on representative shapes, orbits in angle-curvature space, and stress distributions are shown. As limiting cases, the solutions include configurations corresponding to "lariat chains" and the towing, reeling, and sedimentation of flexible cables in a highly viscous fluid. Regions of parameter space corresponding to infinitely long, semi-infinite, and finite length curves are delineated. Almost all curves subtend an angle less than $\\pi$ radians, but curious special cases with doubled or infinite ra...

  3. A Classroom Investigation into the Catenary

    Science.gov (United States)

    Staples, Ed

    2011-01-01

    The quest to find the equation of a catenary makes an ideal investigation for upper secondary students. In the modelling exercise that follows, no knowledge of calculus is required to gain a fairly good understanding of the nature of the curve. This investigation is best described as a scientific investigation--a "hands on" experience that…

  4. A fresh look at the catenary

    Science.gov (United States)

    Behroozi, F.

    2014-09-01

    A hanging chain takes the familiar form known as the catenary which is one of the most ubiquitous curves students encounter in their daily life. Yet most introductory physics and mathematics texts ignore the subject entirely. In more advanced texts the catenary equation is usually derived as an application of the calculus of variations. Although the variational approach is mathematically elegant, it is suitable for more advanced students. Here we derive the catenary equation in special and rectangular coordinates by considering the equilibrium conditions for an element of the hanging chain and without resorting to the calculus of variations. One advantage of this approach is its simplicity which makes it accessible to undergraduate students; another is the concurrent derivation of a companion equation which gives the tension along the chain. These solutions provide an excellent opportunity for undergraduates to explore the underlying physics. One interesting result is that the shape of a hanging chain does not depend on its linear mass density or on the strength of the gravitational field. Therefore, within a scale factor, all catenaries are copies of the same universal curve. We give the functional dependence of the scale factor on the length and terminal angle of the hanging chain.

  5. Solar radiation on a catenary collector

    Science.gov (United States)

    Crutchik, M.; Appelbaum, J.

    1992-01-01

    A tent-shaped structure with a flexible photovoltaic blanket acting as a catenary collector is presented. The shadow cast by one side of the collector produces a shadow on the other side of the collector. This self-shading effect is analyzed. The direct beam, the diffuse, and the albedo radiation on the collector are determined. An example is given for the insolation on the collector operating on Viking Lander 1 (VL1).

  6. Risers. Fatigue of steel catenary risers

    Energy Technology Data Exchange (ETDEWEB)

    Croutelle, Y.; Le Cunff, C.; Biolley, F. [Institut Francais du Petrole (IFP), 92 - Rueil-Malmaison (France)

    2002-12-01

    Steel catenary risers (SCR) are used in the Golf of Mexico (Auger,...), Brazil (Marlim), and soon West Africa (Bonga). Some risers have been instrumented to better understand their behaviour, for instance in the Allegheny Field or the Marlim field. One of the main problem is the interaction between the riser and the soil, since it may create high stresses when the riser is excited by top motion or Vortex-Induced Vibrations (VIV), leading to low fatigue life near the Touch Down Point (TDP). The objective of the present paper is to analyze the influence of the soil on the fatigue of a SCR. A riser configuration is defined and parametric studies are conducted on the soil stiffness, the riser characteristics and the geographic location. The fatigue considered is either due to currents (VIV) or waves (top excitation). For the latter case, several fatigue methods are also compared. (authors)

  7. Catenary optics for achromatic generation of perfect optical angular momentum.

    Science.gov (United States)

    Pu, Mingbo; Li, Xiong; Ma, Xiaoliang; Wang, Yanqin; Zhao, Zeyu; Wang, Changtao; Hu, Chenggang; Gao, Ping; Huang, Cheng; Ren, Haoran; Li, Xiangping; Qin, Fei; Yang, Jing; Gu, Min; Hong, Minghui; Luo, Xiangang

    2015-10-01

    The catenary is the curve that a free-hanging chain assumes under its own weight, and thought to be a "true mathematical and mechanical form" in architecture by Robert Hooke in the 1670s, with nevertheless no significant phenomena observed in optics. We show that the optical catenary can serve as a unique building block of metasurfaces to produce continuous and linear phase shift covering [0, 2π], a mission that is extremely difficult if not impossible for state-of-the-art technology. Via catenary arrays, planar optical devices are designed and experimentally characterized to generate various kinds of beams carrying orbital angular momentum (OAM). These devices can operate in an ultra-broadband spectrum because the anisotropic modes associated with the spin-orbit interaction are almost independent of the incident light frequency. By combining the optical and topological characteristics, our approach would allow the complete control of photons within a single nanometric layer.

  8. 3D CATENARY CURVE FITTING FOR GEOMETRIC CALIBRATION

    Directory of Open Access Journals (Sweden)

    T.-O. Chan

    2012-09-01

    Full Text Available In modern road surveys, hanging power cables are among the most commonly-found geometric features. These cables are catenary curves that are conventionally modelled with three parameters in 2D Cartesian space. With the advent and popularity of the mobile mapping system (MMS, the 3D point clouds of hanging power cables can be captured within a short period of time. These point clouds, similarly to those of planar features, can be used for feature-based self-calibration of the system assembly errors of an MMS. However, to achieve this, a well-defined 3D equation for the catenary curve is needed. This paper proposes three 3D catenary curve models, each having different parameters. The models are examined by least squares fitting of simulated data and real data captured with an MMS. The outcome of the fitting is investigated in terms of the residuals and correlation matrices. Among the proposed models, one of them could estimate the parameters accurately and without any extreme correlation between the variables. This model can also be applied to those transmission lines captured by airborne laser scanning or any other hanging cable-like objects.

  9. Center vortices, area law and the catenary solution

    Science.gov (United States)

    Höllwieser, Roman; Altarawneh, Derar

    2015-12-01

    We present meson-meson (Wilson loop) correlators in Z(2) center vortex models for the infrared sector of Yang-Mills theory, i.e. a hypercubic lattice model of random vortex surfaces and a continuous (2 + 1)-dimensional model of random vortex lines. In particular, we calculate quadratic and circular Wilson loop correlators in the two models, respectively, and observe that their expectation values follow the area law and show string breaking behavior. Further, we calculate the catenary solution for the two cases and try to find indications for minimal surface behavior or string surface tension leading to string constriction.

  10. Modelling of structural flexiblity in multibody railroad vehicle systems

    Science.gov (United States)

    Escalona, José L.; Sugiyama, Hiroyuki; Shabana, Ahmed A.

    2013-07-01

    This paper presents a review of recent research investigations on the computer modelling of flexible bodies in railroad vehicle systems. The paper will also discuss the influence of the structural flexibility of various components, including the wheelset, the truck frames, tracks, pantograph/catenary systems, and car bodies, on the dynamics of railroad vehicles. While several formulations and computer techniques for modelling structural flexibility are discussed in this paper, a special attention is paid to the floating frame of reference formulation which is widely used and leads to reduced-order finite-element models for flexible bodies by employing component modes synthesis techniques. Other formulations and numerical methods such as semi-analytical approaches, absolute nodal coordinate formulation, finite-segment method, boundary elements method, and discrete elements method are also discussed. This investigation is motivated by the fact that the structural flexibility can have a significant effect on the overall dynamics of railroad vehicles, ride comfort, vibration suppression and noise level reduction, lateral stability, track response to vehicle forces, stress analysis, wheel-rail contact forces, wear and crashworthiness.

  11. Nonlinear analysis of wind-induced vibration of high-speed railway catenary and its influence on pantograph-catenary interaction

    Science.gov (United States)

    Song, Yang; Liu, Zhigang; Wang, Hongrui; Lu, Xiaobing; Zhang, Jing

    2016-06-01

    The wind-induced vibration of the high-speed catenary and the dynamic behaviour of the pantograph-catenary under stochastic wind field are firstly analysed. The catenary model is established based on nonlinear cable and truss elements, which can fully describe the nonlinearity of each wire and the initial configuration. The model of the aerodynamic forces acting on the messenger/contact wire is deduced by considering the effect of the vertical and horizontal fluctuating winds. The vertical and horizontal fluctuating winds are simulated by employing the Davenport and Panofsky spectrums, respectively. The aerodynamic coefficients of the contact/messenger wire are calculated through computational fluid dynamics. The wind-induced vibration response of catenary is analysed with different wind speeds and angles. Its frequency-domain characteristics are discussed using Auto Regression model. Finally, a pantograph model is introduced and the contact force of the pantograph-catenary under stochastic wind is studied. The results show that both the wind speed and the attack angle exert a significant effect on the wind-induced vibration. The existence of the groove on the contact wire cross-section leads to a significant change of the aerodynamic coefficient, which affects largely the aerodynamic forces applied on the catenary wires, as well as the vibration response. The vibration frequency with high spectral power mainly concentrates on the predominant frequency of the fluctuating wind and the natural frequency of catenary. The increase in the wind speed results in a significant deterioration of the current collection. The numerical example shows that a relatively stable current collection can be ensured when the wind flows at the relatively horizontal direction.

  12. Investigation of Collision Behavior of Hoisting Catenaries during a Lifting Cycle in Coal Mines

    Directory of Open Access Journals (Sweden)

    Jiannan Yao

    2015-01-01

    Full Text Available This investigation focused on the analyses of transverse vibrations of mine hoisting catenaries where collision between adjacent ropes is more likely to occur. To support the analyses of transverse vibrations of catenaries, theoretical correlation models for longitudinal tension and transverse vibration were first established. Based on a severe rope collision case, on-site measurements and numerical simulations were performed. The research results indicated that the external second-order excitation frequency induced by axial fluctuations of head sheave was the primary excitation frequency, which was closer to the resonance frequency. Furthermore, the effects of excitation amplitude and imbalanced tension were also investigated revealing that larger excitation amplitude contributes to larger response amplitude and the maximum response amplitude of a catenary is sensitive to imbalanced rope tension. Eventually, new solutions, which will facilitate hoisting catenary operation beyond the resonance frequency range, were proposed.

  13. The Effect of a Soap Film on a Catenary: Measurement of Surface Tension from the Triangular Configuration

    Science.gov (United States)

    Behroozi, F.; Behroozi, P. S.

    2011-01-01

    A chain assumes the well-known shape known as a catenary when it hangs loosely from two points in a gravitational field. The correct solution of the catenary was one of the early triumphs of the newly invented calculus of variations at the end of the 17th century. Here we revisit the catenary and show that, for a chain hanging from a horizontal…

  14. DOT Basemap Railroads

    Data.gov (United States)

    Minnesota Department of Natural Resources — This layer represents railroads lines within the state of Minnesota. It has its source as one of the layers in the State of Minnesota BaseMap 2001. This layer was...

  15. Active Control of Contact Force for a Pantograph-Catenary System

    Directory of Open Access Journals (Sweden)

    Jiqiang Wang

    2016-01-01

    Full Text Available The performance of the high speed trains depends critically on the quality of the contact in the pantograph-catenary interaction. Maintaining a constant contact force needs taking special measures and one of the methods is to utilize active control to optimize the contact force. A number of active control methods have been proposed in the past decade. However, the primary objective of these methods has been to reduce the variation of the contact force in the pantograph-catenary system, ignoring the effects of locomotive vibrations on pantograph-catenary dynamics. Motivated by the problems in active control of vibration in large scale structures, the author has developed a geometric framework specifically targeting the remote vibration suppression problem based only on local control action. It is the intention of the paper to demonstrate its potential in the active control of the pantograph-catenary interaction, aiming to minimize the variation of the contact force while simultaneously suppressing the vibration disturbance from the train. A numerical study is provided through the application to a simplified pantograph-catenary model.

  16. Railroad Lines, Railroad, Published in 2007, Millard County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, was produced all or in part from Other information as of 2007. It is described as 'Railroad'. Data by this publisher are often provided...

  17. 78 FR 17763 - Housatonic Railroad Company, Inc., Maybrook Railroad Company, and Housatonic Transportation...

    Science.gov (United States)

    2013-03-22

    ... Surface Transportation Board Housatonic Railroad Company, Inc., Maybrook Railroad Company, and Housatonic Transportation Company--Intra-Corporate Family Transaction Exemption Housatonic Railroad Company, Inc. (HRRC), Maybrook Railroad Company (MRC), and Housatonic Transportation Company (HTC) (collectively,...

  18. Design and Analysis of Steel Catenary Riser Systems for Deep Waters

    OpenAIRE

    Buberg, Thomas

    2014-01-01

    The global growing demand of energy leads the oil and gas industry into deeper waters and harsher environments as current fields are being depleted. This results in need for more advanced technologies to ensure that the systems are able to cope with the increased environmental loads and vessel motions.Steel catenary risers (SCRs) has emerged as a preferred solution for use in deepwater fields because of its simplicity in terms of engineering and fabrication in addition to its cost efficiency ...

  19. Camera-based measurement for transverse vibrations of moving catenaries in mine hoists using digital image processing techniques

    International Nuclear Information System (INIS)

    This paper proposes a novel, non-contact, sensing method to measure the transverse vibrations of hoisting catenaries in mine hoists. Hoisting catenaries are typically moving cables and it is not feasible to use traditional methods to measure their transverse vibrations. In order to obtain the transverse displacements of an arbitrary point in a moving catenary, by superposing a mask image having the predefined reference line perpendicular to the hoisting catenaries on each frame of the processed image sequence, the dynamic intersecting points with a grey value of 0 in the image sequence could be identified. Subsequently, by traversing the coordinates of the pixel with a grey value of 0 and calculating the distance between the identified dynamic points from the reference, the transverse displacements of the selected arbitrary point in the hoisting catenary can be obtained. Furthermore, based on a theoretical model, the reasonability and applicability of the proposed camera-based method were confirmed. Additionally, a laboratory experiment was also carried out, which then validated the accuracy of the proposed method. The research results indicate that the proposed camera-based method is suitable for the measurement of the transverse vibrations of moving cables. (paper)

  20. RailroadValleySpringfish_CH

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — These data identify the areas where final critical habitat for the Railroad Valley springfish (Crenichthys nevadae) occur. The irrigation ditch that is on the north...

  1. Theoretical-experimental static and dynamic analysis of double layered catenary

    Directory of Open Access Journals (Sweden)

    Vlajić Ljubomir

    2010-01-01

    Full Text Available The paper presents the results of static and dynamic tests of double layered catenary of the swimming pool building roof in Leskovac. By the comparison of measured and calculated values, a potential was created to correct the mathematical model, and to verify it. Only then, the calculation model for all sorts of static and dynamic load was able to simulate the realistic behavior of the structure. In this paper, the authors presented the basic recommendations in terms of what initial tensile force should be adopted in order to control the stability of such very cost-effective girders.

  2. Design Optimization for a Truncated Catenary Mooring System for Scale Model Test

    Directory of Open Access Journals (Sweden)

    Climent Molins

    2015-11-01

    Full Text Available One of the main aspects when testing floating offshore platforms is the scaled mooring system, particularly with the increased depths where such platforms are intended. The paper proposes the use of truncated mooring systems to emulate the real mooring system by solving an optimization problem. This approach could be an interesting option when the existing testing facilities do not have enough available space. As part of the development of a new spar platform made of concrete for Floating Offshore Wind Turbines (FOWTs, called Windcrete, a station keeping system with catenary shaped lines was selected. The test facility available for the planned experiments had an important width constraint. Then, an algorithm to optimize the design of the scaled truncated mooring system using different weights of lines was developed. The optimization process adjusts the quasi-static behavior of the scaled mooring system as much as possible to the real mooring system within its expected maximum displacement range, where the catenary line provides the restoring forces by its suspended line length.

  3. The Cost of Railroad Regulation

    DEFF Research Database (Denmark)

    Federico, Giovanni; Sharp, Paul R.

    We investigate the costs of transportation regulation using the example of agricultural markets in the United States. Using a large database of prices by state of agricultural commodities, we find that the coefficient of variation (as a measure of market integration between states) falls for many...... commodities until the First World War. We demonstrate that this reflected changes in transportation costs which in turn in the long run depended on productivity growth in railroads. 1920 marked a change in this relationship, however, and between the First and Second World Wars we find considerable...... disintegration of agricultural markets, ultimately as a consequence of the 1920 Transportation Act. We argue that this benefited railroad companies in the 1920s and workers in the 1930s, and we put forward an estimate of the welfare losses for the consumers of railroad services (i.e. agricultural producers...

  4. 77 FR 64185 - Railroad Revenue Adequacy-2011 Determination

    Science.gov (United States)

    2012-10-18

    ... Surface Transportation Board Railroad Revenue Adequacy--2011 Determination AGENCY: Surface Transportation... the 2011 revenue adequacy determinations for the Nation's Class I railroads. Two carriers, Norfolk Southern Combined Railroad Subsidiaries and Union Pacific Railroad Company, were found to be...

  5. 78 FR 62940 - Railroad Revenue Adequacy-2012 Determination

    Science.gov (United States)

    2013-10-22

    ... Surface Transportation Board Railroad Revenue Adequacy--2012 Determination AGENCY: Surface Transportation... announcing the 2012 revenue adequacy determinations for the Nation's Class I railroads. Two carriers, Norfolk Southern Combined Railroad Subsidiaries and Union Pacific Railroad Company, were found to be...

  6. Effect of Hoisting Load on Transverse Vibrations of Hoisting Catenaries in Floor Type Multirope Friction Mine Hoists

    Directory of Open Access Journals (Sweden)

    Jiannan Yao

    2016-01-01

    Full Text Available The effect of hoisting load on transverse vibrations of hoisting catenaries during lifting in coal mines was investigated in this study. Firstly, dynamic analyses of the vertical hoisting rope were performed. The results show that transverse vibration plays the dominating role in the coupled dynamics of the vertical rope subjected to external excitation induced by axial fluctuations of head sheave, and the rope tension can be approximated by the quasistatic tension. Secondly, employing dynamic simulations, the effect of hoisting load on the transverse vibrations of hoisting catenaries was discussed. The results show that, under the second-order excitation frequency, a discrepant large transverse amplitude will be excited when the hoisting load ranges from 0 to 5000 kg, leading to collision between the two adjacent catenaries and accelerating the rupture of rope. To solve this problem, according to simulation curves, the self-weight of conveyance (preload can be optimized from 39500 kg to 49500 kg. Eventually, on-site measurements were performed on the studied machine, validating the accuracy of the effect of hoisting load on transverse vibrations of hoisting catenaries. This investigation will greatly support facility maintenance, machine design, and even engineering optimization for floor type multirope friction mine hoists.

  7. Driving Resistance from Railroad Trains

    DEFF Research Database (Denmark)

    Lindgreen, Erik Bjørn Grønning; Sorenson, Spencer C

    2005-01-01

    This report methods and parameters for calculating the driving resistance of railroad trains. Calculations and comparisons are presented for aerodynamic, rolling and total resistance for a variety of freight trains under different loading conditions, operating speed and configuration. Simplified ...... methods are presented for the estimation of the driving resistance for passenger trains. This report is a supplement to the ARTEMIS rail emissions model.......This report methods and parameters for calculating the driving resistance of railroad trains. Calculations and comparisons are presented for aerodynamic, rolling and total resistance for a variety of freight trains under different loading conditions, operating speed and configuration. Simplified...

  8. Critical Top Tension for Static Equilibrium Configuration of A Steel Catenary Riser

    Institute of Scientific and Technical Information of China (English)

    Chainarong ATHISAKUL; Karun KLAYCHAM; Somchai CHUCHEEPSAKUL

    2014-01-01

    This paper aims to present the critical top tension for static equilibrium configurations of a steel catenary riser (SCR) by using the finite element method. The critical top tension is the minimum top tension that can maintain the equilibrium of the SCR. If the top tension is smaller than the critical value, the equilibrium of the SCR does not exist. If the top tension is larger than the critical value, there are two possible equilibrium configurations. These two configurations exhibit the nonlinear large displacement. The configuration with the smaller displacement is stable, while the one with larger displacement is unstable. The numerical results show that the increases in the riser’s vertical distances, horizontal offsets, riser’s weights, internal flow velocities, and current velocities increase the critical top tensions of the SCR. In addition, the parametric studies are also performed in order to investigate the limit states for the analysis and design of the SCR.

  9. Kennedy Space Center (KSC) Pad B Catenary Capability Analysis and Technical Exchange Meeting (TEM) Support

    Science.gov (United States)

    Wilson, Timmy R.; Kichak, Robert; Rakov, Vladimir; Kithil, Richard, Jr.; Sargent, Noel B.

    2009-01-01

    The existing lightning protection system at Pad 39B for the Space Shuttle is an outgrowth of a system that was put in place for the Apollo Program. Dr. Frank Fisher of Lightning Technologies was a key participant in the design and implementation of that system. He conveyed to the NESC team that the catenary wire provision was put in place quickly (as assurance against possible vehicle damage causing critical launch delays) rather than being implemented as a comprehensive system designed to provide a high degree of guaranteed protection. Also, the technology of lightning protection has evolved over time with considerable work being conducted by groups such as the electric utilities companies, aircraft manufacturers, universities, and others. Several accepted present-day methods for analysis of lightning protection were used by Drs. Medelius and Mata to study the expected lightning environment for the Pad 39B facility and to analyze the degree of protection against direct lightning attachment to the Space Shuttle. The specific physical configuration directly affects the vulnerability, so cases that were considered included the RSS next to and rolled back from the Space Shuttle, and the GOx Vent Arm both extended and withdrawn from the ET. Elements of the lightning protection system at Pad 39B are shown in Figure 6.0-1 and consist of an 80 foot insulating mast on top of the Fixed Support Structure (FSS), a catenary wire system that runs from the mast in a North/South direction to grounds 1000 feet away on each side of the mast, the RSS which can either be next to or away from the Space Shuttle, and a GOx vent that can either be extended or retracted from the top of the ET.

  10. Ground Attenuation of Railroad Noise

    DEFF Research Database (Denmark)

    Makarewicz, R.; Rasmussen, Karsten Bo; Kokowski, P.

    1996-01-01

    The influence of ground effect on railroad noise is described using the concept of the peak A-weighted sound exposure level, and A-weighted sound exposure level. The train is modelled by a continuous line of incoherent point sources that have a cosine directivity. The ground effect is included...... by the Weyl van der Pol solution with the single parameter model of the ground impedance. The method of determining of the referenced A-weighted power spectrum is presented....

  11. Program for catenary-pantograph analysis, PrOSA statement of methods and validation according EN 50318

    Science.gov (United States)

    Finner, Lars; Poetsch, Gero; Sarnes, Bernhard; Kolbe, Michael

    2015-03-01

    DB Systemtechnik is a high-performing, customer-driven service provider that, as well as authoritatively serving the Deutsche Bahn Group by dint of its specialist knowledge is also increasingly active on the global railway market. Development and testing of pantograph models and catenary systems have been part of the company's essential activity fields from the beginning. Therefore, an efficient and high-performing simulation tool is indispensable. That is why DB Systemtechnik spent high efforts to develop the program PrOSA in cooperation with the Heinz-Nixdorf-Institut (HNI) of the university Paderborn to simulate the interaction of pantograph and catenary. This article gives an overview of the most relevant properties of PrOSA. Furthermore, it is described how the benchmark requirements were implemented and processed.

  12. The effect of a soap film on a catenary: measurement of surface tension from the triangular configuration

    Science.gov (United States)

    Behroozi, F.; Behroozi, P. S.

    2011-09-01

    A chain assumes the well-known shape known as a catenary when it hangs loosely from two points in a gravitational field. The correct solution of the catenary was one of the early triumphs of the newly invented calculus of variations at the end of the 17th century. Here we revisit the catenary and show that, for a chain hanging from a horizontal rod, three new and distinct configurations are possible if a soap film covers the area bounded by the chain and the rod. We first review the general problem and discuss the conditions under which the chain assumes a concave, triangular or convex configuration. The deciding factor is the strength of surface tension relative to the gravitational force per unit length of the chain. The conditions under which the chain assumes the shape of a perfect triangle are discussed in greater detail and analysed to obtain the tension along the chain. The triangular configuration is especially intriguing to undergraduates and may be used as a simple experiment to obtain the surface tension of the soap solution by measuring just one angle of the triangle.

  13. Cross-Flow VIV-Induced Fatigue Damage of Deepwater Steel Catenary Riser at Touch-Down Point

    Institute of Scientific and Technical Information of China (English)

    王坤鹏; 唐文勇; 薛鸿祥

    2014-01-01

    A prediction model of the deepwater steel catenary riser VIV is proposed based on the forced oscillation test data, taking into account the riser-seafloor interaction for the cross-flow VIV-induced fatigue damage at touch-down point (TDP). The model will give more reasonable simulation of SCR response near TDP than the previous pinned truncation model. In the present model, the hysteretic riser-soil interaction model is simplified as the linear spring and damper to simulate the seafloor, and the damping is obtained according to the dissipative power during one periodic riser-soil interaction. In order to validate the model, the comparison with the field measurement and the results predicted by Shear 7 program of a full-scale steel catenary riser is carried out. The main induced modes, mode frequencies and response amplitude are in a good agreement. Furthermore, the parametric studies are carried out to broaden the understanding of the fatigue damage sensitivity to the upper end in-plane offset and seabed characteristics. In addition, the fatigue stress comparison at TDP between the truncation riser model and the present full riser model shows that the existence of touch-down zones is very important for the fatigue damage assessment of steel catenary riser at TDP.

  14. Cross-flow VIV-induced fatigue damage of deepwater steel catenary riser at touch-down point

    Science.gov (United States)

    Wang, Kun-peng; Tang, Wen-yong; Xue, Hong-xiang

    2014-03-01

    A prediction model of the deepwater steel catenary riser VIV is proposed based on the forced oscillation test data, taking into account the riser-seafloor interaction for the cross-flow VIV-induced fatigue damage at touch-down point (TDP). The model will give more reasonable simulation of SCR response near TDP than the previous pinned truncation model. In the present model, the hysteretic riser-soil interaction model is simplified as the linear spring and damper to simulate the seafloor, and the damping is obtained according to the dissipative power during one periodic riser-soil interaction. In order to validate the model, the comparison with the field measurement and the results predicted by Shear 7 program of a full-scale steel catenary riser is carried out. The main induced modes, mode frequencies and response amplitude are in a good agreement. Furthermore, the parametric studies are carried out to broaden the understanding of the fatigue damage sensitivity to the upper end in-plane offset and seabed characteristics. In addition, the fatigue stress comparison at TDP between the truncation riser model and the present full riser model shows that the existence of touch-down zones is very important for the fatigue damage assessment of steel catenary riser at TDP.

  15. A New Contactless Fault Diagnosis Approach for Pantograph-Catenary System Using Pattern Recognition and Image Processing Methods

    Directory of Open Access Journals (Sweden)

    AYDIN, I.

    2014-08-01

    Full Text Available Comfort and safety of railway transport has become more important as train speeds continue to increase. In electrified railways, the electrical current of the train is produced by the sliding contact between the pantograph and catenary. The quality of the current depends on the reliability of contact between the pantograph and catenary. So, pantograph inspection is very important task in electrified railways and it is periodically made for preventing dangerous situations. This inspection is operated manually by taking the pantograph to the service for visual anomalies. However, this monitoring is impractical because of time consuming and slowness, as locomotive remains disabled. An innovative method based on image processing and pattern recognition is proposed in this paper for online monitoring of the catenary-pantograph interaction. The images are acquired from a digital line-scan camera. Data are simultaneously processed according to edge detection and Hough transform, and then the obtained features are provided to a D-Markov based state machine, and the pantograph related faults, such as overheating of the pantograph strip, bursts of arcing, and irregular positioning of the contact line are diagnosed. The proposed method is verified by real faulty and healthy pantograph videos.

  16. Railroad Lines, Railroad ROW, Published in 2009, Polk County Assessor's Office.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset as of 2009. It is described as 'Railroad ROW'. Data by this publisher are often provided in State Plane coordinate system; in a Albers...

  17. Railroad Lines, Railroad, Published in 2007, 1:24000 (1in=2000ft) scale, Juab County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Other information as of 2007. It is described as 'Railroad'....

  18. Railroad and locomotive technology roadmap.

    Energy Technology Data Exchange (ETDEWEB)

    Stodolsky, F.; Gaines, L.; Energy Systems

    2003-02-24

    Railroads are important to the U.S. economy. They transport freight efficiently, requiring less energy and emitting fewer pollutants than other modes of surface transportation. While the railroad industry has steadily improved its fuel efficiency--by 16% over the last decade--more can, and needs to, be done. The ability of locomotive manufacturers to conduct research into fuel efficiency and emissions reduction is limited by the small number of locomotives manufactured annually. Each year for the last five years, the two North American locomotive manufacturers--General Electric Transportation Systems and the Electro-Motive Division of General Motors--have together sold about 800 locomotives in the United States. With such a small number of units over which research costs can be spread, outside help is needed to investigate all possible ways to reduce fuel usage and emissions. Because fuel costs represent a significant portion of the total operating costs of a railroad, fuel efficiency has always been an important factor in the design of locomotives and in the operations of a railroad. However, fuel efficiency has recently become even more critical with the introduction of strict emission standards by the U.S. Environmental Protection Agency, to be implemented in stages (Tiers 0, 1, and 2) between 2000 and 2005. Some of the technologies that could be employed to meet the emission standards may negatively affect fuel economy--by as much as 10-15% when emissions are reduced to Tier 1 levels. Lowering fuel economy by that magnitude would have a serious impact on the cost to the consumer of goods shipped by rail, on the competitiveness of the railroad industry, and on this country's dependence on foreign oil. Clearly, a joint government/industry R&D program is needed to help catalyze the development of advanced technologies that will substantially reduce locomotive engine emissions while also improving train system energy efficiency. DOE convened an industry

  19. Railroad and locomotive technology roadmap.

    Energy Technology Data Exchange (ETDEWEB)

    Stodolsky, F.; Gaines, L.; Energy Systems

    2003-02-24

    Railroads are important to the U.S. economy. They transport freight efficiently, requiring less energy and emitting fewer pollutants than other modes of surface transportation. While the railroad industry has steadily improved its fuel efficiency--by 16% over the last decade--more can, and needs to, be done. The ability of locomotive manufacturers to conduct research into fuel efficiency and emissions reduction is limited by the small number of locomotives manufactured annually. Each year for the last five years, the two North American locomotive manufacturers--General Electric Transportation Systems and the Electro-Motive Division of General Motors--have together sold about 800 locomotives in the United States. With such a small number of units over which research costs can be spread, outside help is needed to investigate all possible ways to reduce fuel usage and emissions. Because fuel costs represent a significant portion of the total operating costs of a railroad, fuel efficiency has always been an important factor in the design of locomotives and in the operations of a railroad. However, fuel efficiency has recently become even more critical with the introduction of strict emission standards by the U.S. Environmental Protection Agency, to be implemented in stages (Tiers 0, 1, and 2) between 2000 and 2005. Some of the technologies that could be employed to meet the emission standards may negatively affect fuel economy--by as much as 10-15% when emissions are reduced to Tier 1 levels. Lowering fuel economy by that magnitude would have a serious impact on the cost to the consumer of goods shipped by rail, on the competitiveness of the railroad industry, and on this country's dependence on foreign oil. Clearly, a joint government/industry R&D program is needed to help catalyze the development of advanced technologies that will substantially reduce locomotive engine emissions while also improving train system energy efficiency. DOE convened an industry

  20. 75 FR 18253 - R.J. Corman Railroad Property, LLC-Acquisition Exemption-NC Railroad, Inc.

    Science.gov (United States)

    2010-04-09

    ... Surface Transportation Board R.J. Corman Railroad Property, LLC--Acquisition Exemption--NC Railroad, Inc. R.J. Corman Railroad Property, LLC (RJC Railroad Property), a Class III rail carrier, has filed a... concurrently filed notice of exemption in STB Finance Docket No. 35364, R.J. Corman Railroad...

  1. 77 FR 22381 - Odorant Fade in Railroad Tank Cars

    Science.gov (United States)

    2012-04-13

    ... Federal Railroad Administration Odorant Fade in Railroad Tank Cars AGENCY: Federal Railroad Administration... odorant during the transportation cycle (commonly known as ``odorant fade''). This safety advisory... odorization standards and procedures, and take appropriate actions to guard against odorant fade in...

  2. 76 FR 68830 - Railroad Revenue Adequacy-2010 Determination

    Science.gov (United States)

    2011-11-07

    ... Surface Transportation Board Railroad Revenue Adequacy--2010 Determination AGENCY: Surface Transportation... announcing the 2010 revenue adequacy determinations for the Nation's Class I railroads. One carrier, Union Pacific Railroad Company, was found to be revenue adequate. DATES: Effective Date: This decision...

  3. 49 CFR 219.23 - Railroad policies.

    Science.gov (United States)

    2010-10-01

    ... .02 or greater but less than .04. (12) Information concerning the effects of alcohol misuse on an..., DEPARTMENT OF TRANSPORTATION CONTROL OF ALCOHOL AND DRUG USE General § 219.23 Railroad policies. (a) Whenever a breath or body fluid test is required of an employee under this part, the railroad must...

  4. 20 CFR 404.1027 - Railroad work.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Railroad work. 404.1027 Section 404.1027...- ) Employment, Wages, Self-Employment, and Self-Employment Income Work Excluded from Employment § 404.1027 Railroad work. We exclude from employment any work you do as an employee or employee representative...

  5. Experimental investigation on vortex-induced vibration of steel catenary riser

    Science.gov (United States)

    Fan, Yu-ting; Mao, Hai-ying; Guo, Hai-yan; Liu, Qing-hai; Li, Xiao-min

    2015-10-01

    Steel catenary riser (SCR) is the transmission device between the seabed and the floating production facilities. As developments move into deeper water, the fatigue life of the riser can become critical to the whole production system, especially due to the vortex-induced vibration (VIV), which is the key factor to operational longevity. As a result, experimental investigation about VIV of the riser was performed in a large plane pool which is 60 m long, 36 m wide and 6.5 m deep. Experiments were developed to study the influence of current speed and seabed on VIV of SCR. The results show that amplitudes of strain and response frequencies increase with the current speed both in cross-flow (CF) and in-line (IL). When the current speed is high, multi-mode response is observed in the VIV motion. The amplitudes of strain in IL direction are not much smaller than those in CF direction. The seabed has influence on the response frequencies of riser and the positions of damage for riser.

  6. Steel catenary riser for the Marlim field FPS P-XVIII

    Energy Technology Data Exchange (ETDEWEB)

    Serta, O.B.; Mourelle, M.M. [Petrobras S/A, Rio de Janeiro (Brazil); Grealish, F.W.; Harbert, S.J.; Souza, L.F.A.

    1996-12-31

    Steel catenary risers (SCRs) have been successfully deployed on the Shell Auger TLP in the Gulf of Mexico and will also be deployed on the Shell Mars TLP. There is considerable interest in using SCRs for other applications, in particular for semi-sub based FPS systems. Petrobras is developing an SCR for installation on the P-XVIII platform, located in the Marlim Field, Campos Basin, in a water depth of 910 meters. The riser will be a dead-ended prototype which will be monitored for a period of up to one year. Subsequently, it will be connected via flexible piping to the P-XXVI platform, located approximately 5 kilometers from P-XVIII. This paper describes the design, materials, components, specification and installation of the Petrobras P-XVIII SCR. The static/dynamic design, VIV analysis and fatigue analysis methodologies are discussed in detail and results are presented. Important aspects of the flex joint design and specification are discussed. This project represents the first application of SCRs to semi-sub based FPS systems. In addition, it is the first use of SCRs outside of the Gulf of Mexico.

  7. Dynamics of Large-Truncated Mooring Systems Coupled with A Catenary Moored Semi-Submersible

    Institute of Scientific and Technical Information of China (English)

    徐胜; 嵇春艳

    2014-01-01

    With the floating structures pushing their activities to the ultra-deep water, model tests have presented a challenge due to the limitation of the existing wave basins. Therefore, the concept of truncated mooring system is implemented to replace the full depth mooring system in the model tests, which aims to have the same dynamic responses as the full depth system. The truncated mooring system plays such a significant role that extra attention should be paid to the mooring systems with large truncation factor. Three different types of large truncation factor mooring system are being employed in the simulations, including the homogenously truncated mooring system, non-homogenously truncated mooring system and simplified truncated mooring system. A catenary moored semi-submersible operating at 1000 m water depth is presented. In addition, truncated mooring systems are proposed at the truncated water depth of 200 m. In order to explore the applicability of these truncated mooring systems, numerical simulations of the platform’s surge free decay interacting with three different styles of truncated mooring systems are studied in calm water. Furthermore, the mooring-induced damping of the truncated mooring systems is simulated in the regular wave. Finally, the platform motion responses and mooring line dynamics are simulated in irregular wave. All these simulations are implemented by employing full time domain coupled dynamic analysis, and the results are compared with those of the full depth simulations in the same cases. The results show that the mooring-induced damping plays a significant role in platform motion responses, and all truncated mooring systems are suitable for model tests with appropriate truncated mooring line diameters. However, a large diameter is needed for simplified truncated mooring lines. The suggestions are given to the selection of truncated mooring system for different situations as well as to the truncated mooring design criteria.

  8. Multiaxial Fatigue Analyses of Stress Joints for Deepwater Steel Catenary Risers

    Institute of Scientific and Technical Information of China (English)

    ZHENG Wen-qing; YANG He-zhen; LI Qing-quan

    2012-01-01

    In the present study,the dynamic and fatigue characteristics of two types of stress joints are investigated under ocean environmental condition.Connected with the riser and the platform,stress joint at the vessel hang-off position should be one of the main critical design challenges for a steel catenary riser (SCR) in deepwater.When the riser is under a high pressure and deepwater working condition,the stress state for the joint is more complex,and the fatigue damage is easy to occur at this position.Stress joint discussed in this paper includes two types:Tapered Stress Joint (TSJ) and Sleeved Stress Joint (SSJ),and multiaxial fatigue analysis results are given for comparison.Global dynamic analysis for an SCR is performed fiust,and then the local boundary conditions obtained from the previous analysis are applied to the stress joint FE model for the later dynamic and multiaxial fatigue analysis.Results indicate that the stress level is far lower than the yield limit of material and the damage induced by fatigue needs more attention.Besides,the damage character of the two types of stress joints differs:for TSJ,the place where the stress joint connects with the riser is easy to occur fatigue damage; for SSJ,the most probable position is at the place where the end of the inner sleeve pipe contacts with the riser body.Compared with SSJ,TSJ shows a higher stress level but better fatigue performance,and it will have a higher material cost.In consideration of various factors,designers should choose the most suitable type and also geometric parameters.

  9. 76 FR 68523 - Utah Southern Railroad Company, LLC-Change in Operators Exemption-Iron Bull Railroad Company, LLC

    Science.gov (United States)

    2011-11-04

    ... Surface Transportation Board Utah Southern Railroad Company, LLC--Change in Operators Exemption--Iron Bull Railroad Company, LLC Utah Southern Railroad Company, LLC (USRC), a noncarrier, has filed a verified notice of exemption under 49 CFR 1150.31 to change operators from Iron Bull Railroad Company (IBRC) to...

  10. 76 FR 39155 - R.J. Corman Railroad Property, LLC-Acquisition Exemption-NC Railroad, Inc

    Science.gov (United States)

    2011-07-05

    ... Register on April 9, 2010 (75 FR 18,253), and became effective on April 25, 2010. On May 28, 2010, RJC... Surface Transportation Board R.J. Corman Railroad Property, LLC--Acquisition Exemption--NC Railroad, Inc R. J. Corman Railroad Property, LLC (RJC Railroad Property), a Class III rail carrier, filed a...

  11. 77 FR 55268 - Union Pacific Railroad Company-Acquisition and Operation Exemption-San Pedro Railroad Operating...

    Science.gov (United States)

    2012-09-07

    ... on Mack H. Shumate, Jr., Union Pacific Railroad Company, Law Department, 101 North Wacker Drive, Room... Surface Transportation Board Union Pacific Railroad Company--Acquisition and Operation Exemption--San Pedro Railroad Operating Company, LLC Union Pacific Railroad Company (UP) has filed a verified notice...

  12. 25 CFR 169.23 - Railroads.

    Science.gov (United States)

    2010-04-01

    ... is made. (d) Plats of railroad station grounds shall be drawn on a scale of 400 feet to an inch, and... on a scale sufficiently large to show clearly their dimensions and relative positions. (e) If...

  13. 75 FR 18254 - R.J. Corman Railroad Company/Bardstown Line-Lease and Operation Exemption-R.J. Corman Railroad...

    Science.gov (United States)

    2010-04-09

    ... Surface Transportation Board R.J. Corman Railroad Company/Bardstown Line--Lease and Operation Exemption--R.J. Corman Railroad Property, LLC R.J. Corman Railroad Company/Bardstown Line (RJC Railroad Company... from R.J. Corman Railroad Property, LLC (RJC Railroad Property), and to operate approximately 42...

  14. Fatigue crack initiation life prediction of railroad

    International Nuclear Information System (INIS)

    Study of multiaxial high-cycle fatigue initiation life prediction for railroad is done in this paper. Using ANSYS 11.0 software three dimensional elasto-plastic finite element model of rail/wheel contact is constructed and fine mesh technique in contact region is used to achieve both computational efficiency and accuracy. Stress analysis is performed and fatigue damage in railroad is evaluated numerically using multiaxial fatigue crack initiation model. Using the stress history during one loading cycle and fatigue damage model, the effects of vertical loading, material hardness material fatigue properties and wheel/rail contact situation on fatigue crack initiation life are investigated.

  15. 75 FR 5170 - Railroad Cost Recovery Procedures-Productivity Adjustment

    Science.gov (United States)

    2010-02-01

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Railroad Cost Recovery Procedures--Productivity Adjustment AGENCY: Surface Transportation Board, DOT. ACTION: Proposed Railroad Cost Recovery Procedures Productivity Adjustment....

  16. 78 FR 10262 - Railroad Cost Recovery Procedures-Productivity Adjustment

    Science.gov (United States)

    2013-02-13

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Railroad Cost Recovery Procedures--Productivity Adjustment AGENCY: Surface Transportation Board, DOT. ACTION: Proposed railroad cost recovery procedures productivity adjustment....

  17. 75 FR 16575 - Railroad Cost Recovery Procedures-Productivity Adjustment

    Science.gov (United States)

    2010-04-01

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Railroad Cost Recovery Procedures--Productivity Adjustment AGENCY: Surface Transportation Board. ACTION: Adoption of a railroad cost recovery procedures productivity adjustment....

  18. 77 FR 7237 - Railroad Cost Recovery Procedures-Productivity Adjustment

    Science.gov (United States)

    2012-02-10

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Railroad Cost Recovery Procedures--Productivity Adjustment AGENCY: Surface Transportation Board. ACTION: Proposed railroad cost recovery procedures productivity adjustment. SUMMARY: In...

  19. Railroad Lines, Railroad-The data set is a line feature representing railroad tracks. It was created to maintain the location of the railroad., Published in 1991, Davis County Utah.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, was produced all or in part from Field Survey/GPS information as of 1991. It is described as 'Railroad-The data set is a line feature...

  20. Top local cohomology and the catenary of the unmixed part of support of a finitely generated module

    International Nuclear Information System (INIS)

    Let (R,m) be a Noetherian local ring and M a finitely generated R-module with dim M = d. This paper is concerned with the following property for the top local cohomology Hmd(M): AnnR(0:Hmd (M) p) = p for all prime ideals p is a subset of AnnRHmd(M). It is shown that this property is equivalent to the catenary of the unmixed part Supp M/UM(0) of the support of M, where UM(0) is the largest submodule of M of dimension less than d. Some characterizations of this property in terms of systems of parameters and relations between the unmixed parts of Supp M and Supp M-circumflex are given. A connection to the so-called co-localization is discussed. (author)

  1. Research on catenary bird damage prevention programs%接触网鸟害防治方案研究

    Institute of Scientific and Technical Information of China (English)

    毛进明

    2015-01-01

    In this paper,combined with the nest clean up the data,from birds to build nests occurred at a time,geographical distribution,build-ing location and other aspects of the law are analyzed to build the nest,and from the design,construction,operation and management and other aspects of proposed catenary bird damage prevention programs,in order to gain the target reduced the bird trouble.%结合网鸟巢清理数据,从鸟类筑巢发生的搭建时间、地域分布、搭建位置等方面分析了鸟巢的搭建规律,并从设计、施工、运营管理等多方面提出了接触网鸟害的防治方案,以达到降低鸟害的目标。

  2. TIGER Railroads for South Louisiana, UTM 15N NAD83, Louisiana Recovery Authority (2007), [TIGER_LA_Railroads_2000

    Data.gov (United States)

    Louisiana Geographic Information Center — This is a line data set for 'Railroads' of Louisiana extracted from 1997 TIGER/Line source data. Railroad Mainlines, Spurs, Yards, and specialized rail lines have...

  3. Railroad Lines, railroads, Published in 2008, 1:24000 (1in=2000ft) scale, Box Elder County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Other information as of 2008. It is described as 'railroads'....

  4. Railroad Lines, DASC railroad centerline layer, Published in 2003, 1:600 (1in=50ft) scale, City of Hutchinson.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:600 (1in=50ft) scale, was produced all or in part from Other information as of 2003. It is described as 'DASC railroad...

  5. 76 FR 2748 - Competition in the Railroad Industry

    Science.gov (United States)

    2011-01-14

    ... Surface Transportation Board Competition in the Railroad Industry AGENCY: Surface Transportation Board... to explore the current state of competition in the railroad industry and possible policy alternatives... Railroad Industry and Analysis of Proposals That Might Enhance Competition (November 2009), is available...

  6. 49 CFR 219.105 - Railroad's duty to prevent violations.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Railroad's duty to prevent violations. 219.105 Section 219.105 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD... duty to prevent violations. (a) A railroad may not, with actual knowledge, permit an employee to go...

  7. 76 FR 10430 - Railroad Cost of Capital-2010

    Science.gov (United States)

    2011-02-24

    ... 2010. The decision solicits comments on the following issues: (1) The railroads' 2010 current cost of debt capital; (2) the railroads' 2010 current cost of preferred equity capital (if any); (3) the... Surface Transportation Board Railroad Cost of Capital--2010 AGENCY: Surface Transportation Board....

  8. 75 FR 16894 - Railroad Cost of Capital-2009

    Science.gov (United States)

    2010-04-02

    ... current cost of debt capital; (2) the railroads' 2009 current cost of preferred equity capital (if any... Surface Transportation Board Railroad Cost of Capital--2009 AGENCY: Surface Transportation Board, DOT. ACTION: Notice of decision instituting a proceeding to determine the railroad industry's 2009 cost...

  9. 78 FR 13933 - Railroad Cost of Capital-2012

    Science.gov (United States)

    2013-03-01

    ... cost of debt capital; (2) the railroads' 2012 current cost of preferred equity capital (if any); (3... Surface Transportation Board Railroad Cost of Capital--2012 AGENCY: Surface Transportation Board, DOT. ACTION: Notice of decision instituting a proceeding to determine the railroad industry's 2012 cost...

  10. 77 FR 6625 - Railroad Cost of Capital-2011

    Science.gov (United States)

    2012-02-08

    ... cost of debt capital; (2) the railroads' 2011 current cost of preferred equity capital (if any); (3... Surface Transportation Board Railroad Cost of Capital--2011 AGENCY: Surface Transportation Board. ACTION: Notice of decision instituting a proceeding to determine the railroad industry's 2011 cost of...

  11. Railroad Bridges in Louisiana, Geographic NAD83, FEMA (1997) [railroad_bridges_FEMA_1997

    Data.gov (United States)

    Louisiana Geographic Information Center — This is is a point dataset for the locations and attributes of 32 Louisiana railroad bridges. The attributes include city (nearest?), county (sic), routefrom...

  12. 76 FR 34805 - Arkansas Midland Railroad Company, Inc., Trackage Rights Exemption; Caddo Valley Railroad Company

    Science.gov (United States)

    2011-06-14

    ... Union Pacific Railroad Company (UP) at milepost 426.88 in Gurdon, Ark. and milepost 429.5 north of... transaction from those listed in the emergency service proceeding involving the same line. See Ark. Midland...

  13. Railroad Lines, Line feature class representing individual Railroad rail lines, Published in unknown, Johnson County AIMS.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, was produced all or in part from Orthoimagery information as of unknown. It is described as 'Line feature class representing individual...

  14. 75 FR 61552 - Federal Railroad Administration

    Science.gov (United States)

    2010-10-05

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Railroad Administration Notice of Informational Filing In accordance with Section 236.913 of Title... Administration (FRA) has received an informational filing from the Northeast Illinois Regional Commuter...

  15. 77 FR 14058 - Santa Teresa Southern Railroad, LLC-Operation Exemption-Rail Line of Verde Logistics Railroad...

    Science.gov (United States)

    2012-03-08

    ... Logistics Railroad, LLC at Santa Teresa, Dona Ana County, NM Santa Teresa Southern Railroad, LLC (STSR), a... feet of rail line owned by Verde Logistics Railroad, LLC (Verde). The rail line extends between a point... to shippers and receivers located in the Santa Teresa Logistics Industrial Park. \\1\\ STSR states...

  16. Discussion on Lightning Protection Measures of Electrification Railway Catenary%电气化铁路接触网防雷措施的探讨

    Institute of Scientific and Technical Information of China (English)

    刘立方

    2013-01-01

      针对国内电气化铁道部分线路遭受雷击较频繁的现状,本文对接触网遭受雷击跳闸情况进行了统计分析,借鉴国外接触网防雷措施,结合我国电气化铁道防雷措施的现状,同时参考国内电气化铁路防雷措施的研究成果,提出了我国电气化铁路接触网系统的防雷措施原则及建议。%Aiming at the situation that the domestic electrified railway line often suffers from lightning, the paper makes a statistical analysis on lightning trip-out times of catenary; combined with foreign catenary lightning protection measures and domestic lightning protection measures of electrification railway, it puts forward the principle and suggestion on lightning protection measures of electrification railway catenary.

  17. Correlation Analysis between Catenary Irregularities and Pantograph-Catenary Contact Forces Based on Improved NARX Neural Network%基于改进NARX神经网络的接触线表面不平顺与弓网接触力关联分析方法

    Institute of Scientific and Technical Information of China (English)

    张媛; 秦勇; 程晓卿; 庞学苗; 邢宗义

    2012-01-01

    For collecting the test data of catenary irregularities and contact forces, the pantograph/catenary dynamics model was established and dynamic simulation was conducted using MATLAB/Simulink. After normalization, the catenary irregularities data and contact forces data were used respectively as the inputs and outputs of Nonlinear Auto-Regressive with eXogenous Input (NARX) neural networks. The traditional Bayesian Regularization (BR) was improved to modify the weight of NARX neural network, and the improved NARX (NARX-IR) neural network method was obtained. With NARX-IR neural network method, the correlation analysis between catenary irregularities and pantograph-catenary contact forces was carried through. The BP neural network based on LM algorithm (BP-LM), the NARX neural network based on traditional Bayesian regularization algorithm (NARX-BR), and the NARX neural network based on improving traditional Bayesian regularization algorithm (NARX-IR), three methods were tested and compared, and root mean square error and correlation coefficient were used for performance evaluation. The result shows that it's difficult for BP-LM neural network method to describe the complicated correlation between catenary irregularities and pantograph-catenary contact forces. Whether in training or predicting, the root mean square error of NARX-IR neural network method is lower than that of NARX-BR, and its correlation coefficient is greater than that of NARX-BR It is concluded that the proposed NARX-IR neural network method is more suitable for analyzing the correlation between catenary irregularities and pantograph-catenary contact forces.%建立弓网耦合动力学模型,采用软件MATLAB的Simulink模块对该模型进行动态仿真,获取接触线表面不平顺和弓网接触力数据;对接触线表面不平顺和弓网接触力数据进行归—化处理后,分别作为非线性自回归(NARX)神经网络的输入和输出;对传统的贝叶斯正则化算法进行改

  18. Algorithmic generation of railroad and highway routes

    Energy Technology Data Exchange (ETDEWEB)

    Low, J. T.; Bushnell, R. C.; Shannon, R.; Borsos, R.; Graham, J.; Sherry, R.

    1979-01-01

    A minimum-time algorithm can be used to generate realistic highway routes between specific origins and destinations. Minimizing distances on links will not produce realistic railroad routes if links bear any resemblance to physical trackage. There are also multiple routes between two points since each carrier has its own philosophy. This paper outlines a systematic method of preparing information such that a computer algorithm can generate realistic routes for single- or multiple-carrier movements.

  19. 高速铁路牵引供电接触网雷电防护%Lightning Protection of Traction Power Supply Catenary of High-speed Railway

    Institute of Scientific and Technical Information of China (English)

    边凯; 陈维江; 王立天; 沈海滨; 李成榕; 王彦利; 赵海军

    2013-01-01

    中国高速铁路多采用高架桥敷设方式,牵引供电接触网的导线对地高度较大,雷击跳闸率较高,必须采取有效措施加以解决.建立了接触网的雷电过电压计算模型,并基于矢量匹配技术和网络综合理论提取了高架桥冲击阻抗的等值电路;计算分析了接触网雷击跳闸的概率和特点.结果表明:接触网F线的雷击跳闸率很高,而受到F线屏蔽的T线雷击跳闸率较低;提出了将PW线兼做避雷线使用以及在F线绝缘子上安装带串联间隙避雷器的防护方案,同时,建议加强高架桥非预应力结构钢筋与接地钢筋的可靠等电位连接,以提高防护方案的效果.%Because viaducts are widely adopted in china high-speed railway system, the conductors of traction power supply catenary are high, which makes the catenary suffer from lightning frequently. The paper gives a solution to the problem. Firstly, lightning overvoltage calculation models of the catenary were built, where the impulse grounding impedance equivalent circuit of the viaduct was extracted based on the Vector Fitting Method and Electric Network Theory. Secondly, the probability and characteristics of lightning outage of the catenary were analyzed, and the result shows that the probability of lightning outage of F wire is higher than T wire because T wire is shielded by F wire. Thirdly, two protection measures were proposed, One measure is to use PW wire as lightning shield wire and the other one is to install surge arresters with series gap on the insulators of F wire. Finally, it is also suggested that the equipotential connection of non-prestressed and grounding steels of the viaduct should be encouraged for getting better protection effect.

  20. 75 FR 57553 - Indexing the Annual Operating Revenues of Railroads

    Science.gov (United States)

    2010-09-21

    ... Surface Transportation Board Indexing the Annual Operating Revenues of Railroads The Surface... used by the railroads to adjust their gross annual operating revenues for classification purposes. This... Labor Statistics (BLS). The STB's deflator factor is used to deflate revenues for comparison...

  1. 78 FR 21007 - Indexing the Annual Operating Revenues of Railroads

    Science.gov (United States)

    2013-04-08

    ... TRANSPORTATION Surface Transportation Board Indexing the Annual Operating Revenues of Railroads The Surface... used by the railroads to adjust their gross annual operating revenues for classification purposes. This... Labor Statistics (BLS). The STB's deflator factor is used to deflate revenues for comparison...

  2. 76 FR 52384 - Indexing the Annual Operating Revenues of Railroads

    Science.gov (United States)

    2011-08-22

    ... Surface Transportation Board Indexing the Annual Operating Revenues of Railroads The Surface... used by the railroads to adjust their gross annual operating revenues for classification purposes. This... Labor Statistics (BLS). The STB's deflator factor is used to deflate revenues for comparison...

  3. 77 FR 34125 - Indexing the Annual Operating Revenues of Railroads

    Science.gov (United States)

    2012-06-08

    ... Surface Transportation Board Indexing the Annual Operating Revenues of Railroads The Surface... used by the railroads to adjust their gross annual operating revenues for classification purposes. This... Labor Statistics (BLS). The STB's deflator factor is used to deflate revenues for comparison...

  4. Railroad Lines - RAILROAD_100K_NTAD_IN: Railroad Network in Indiana (National Transportation Atlas Database, 1:100,000, Line Shapefile)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — RAILROAD_NTAD_100K_SW is a 1:100,000 scale line shapefile which is a subset of the rail network. Bureau of Transportation Statistics metadata states - "The Rail...

  5. 基于悬链线理论的海带打结原理研究%Research of kelp-knot principle based on catenary theory

    Institute of Scientific and Technical Information of China (English)

    李哲; 王宇锐; 汤剑; 李华龙; 王小强

    2011-01-01

    The mechanized technology of knotting kelp is a difficult issue and hotspot without settling at present worldwide. The machine of knotting kelp was developed and could basically a-chieve the movement of knotting kelp. But the success rate of the knotting kelp was less than 99% which was the knotting efficiency that industrialized production required. In order to find kelp-knot principle of the machine and improve success rate of knotting kelp, the process of knotting kelp by the equipment was analyzed based on catenary theory. A mathematical model of a kelp line was established. And the solution of the catenary equations including a catenary with endpoints of the same height, a catenary with endpoints of different height and a catenary with restriction besides endpoints were put forward. It made a study of the kelp-knot principle by analysing the states of the kelp line in four different stages of the motion and projecting the kept line in space of each state on the same surface along a certain axis. The result turned out that the way the equipment knots the kelp meets the qualification of the method of twisting knot. It is proved that the method of knotting kelp is correct and feasible. It provides a theoretical guidance for improving success rate of knotting kelp.%机械化海带打结是当今未解决的技术难题,目前研制的海带打结机难以达到产业化要求的99%的打结成功率,为了研究海带打结机的海带成结原理并提高海带打结成功率,利用悬链线理论对海带打结过程进行了分析.建立了海带线的悬链线数学模型,提出了端点等高、端点不等高和受到端点外其他约束等各种悬链线方程的解法,分析了海带线打结过程中4个不同阶段所处的状态,通过将海带线在4种状态下的空间曲线向指定平面投影的方法研究了打结原理,结果表明海带线符合扭转打结法的条件,证明了此种海带打结方法的正确性和可行性,为提高海

  6. Railroad Lines, Railroads within Sedgwick County. Primary attribute is railroad name. Names are provided as annotation also., Published in 2008, 1:1200 (1in=100ft) scale, Sedgwick County, Kansas.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from Other information as of 2008. It is described as 'Railroads...

  7. 49 CFR 220.307 - Use of railroad-supplied electronic devices.

    Science.gov (United States)

    2010-10-01

    ... may use a railroad-supplied electronic device only for an authorized business purpose as specified by... 49 Transportation 4 2010-10-01 2010-10-01 false Use of railroad-supplied electronic devices. 220... RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION RAILROAD COMMUNICATIONS Electronic Devices §...

  8. 77 FR 45715 - Notice of Public Hearing: Reading Blue Mountain and Northern Railroad

    Science.gov (United States)

    2012-08-01

    ... interested parties. See 77 FR 2774-2775 (January 19, 2012). After examining the carrier's proposal and the... Federal Railroad Administration Notice of Public Hearing: Reading Blue Mountain and Northern Railroad The Reading Blue Mountain and Northern Railroad (RBMN) has petitioned the Federal Railroad Administration...

  9. Heavy Metal Pollution in Soils on Railroad Side of Zhengzhou-Putian Section of Longxi-Haizhou Railroad, China

    Institute of Scientific and Technical Information of China (English)

    MA Jian-Hua; CHU Chun-Jie; LI Jian; SONG Bo

    2009-01-01

    The pollution status and horizontal distribution of heavy metals (Ni, Pb, Cr, Zn, Cu, and Cd) in the soil on railroad side along the Zhengzhou-Putian section of Longxi-Haizhou Railroad were studied by collecting soil samples along a sampling section perpendicular to the railroad at the distances of 0, 10, 20, 30, 50, 100, 200, 300, and 500 m from the railroad edge. The concentrations of heavy metals in the sampling soils were higher than those of the control site. The concentrations of Pb, Zn, and Cd were found to be the highest in the soils at the railroad edge, and then decreased with increasing distance from the railroad. The highest concentrations of Ni, Cr, and Cu in soils were located at about 10-30 m from the railroad. Compared with the single factor pollution index (SFPI) of heavy metals calculated for the control site, the average SFPI from the sampling sites decreased in the order of Cr > Cd > Pb > Zn > Ni > Cu. There were notable negative correlations between the integral pollution index (IPI) of soil heavy metals at all sampling sites and the distances from the railroad. According to three IPIs calculated from the background values of heavy metals in och-aquic Cambisols, the heavy metal concentrations in the control soil, and the 2nd levels for soil heavy metals in GB15618-1995, the study area could be divided, based on the distances from the railroad, into four pollution zones: heavy pollution zone (0-10 m), medium pollution zone (10-50 m), slight pollution zone (50-100 m), and warning zone (100-500 m), respectively.

  10. Global Map: Railroad Stations 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 Amtrak intercity railroad terminals in the United States. The data are a modified version of the National Atlas of...

  11. 78 FR 66987 - Railroad Safety Technology Program Grant Program

    Science.gov (United States)

    2013-11-07

    ..., the railroad environment; and perceived likelihood of technical and practical success. 4. Key Personnel and Supporting Organization (15%): The technical qualifications and demonstrated experience of key... in the following order: Projects that: ] 1. Facilitate sharing of PTC communications...

  12. Liquid filtration properties in gravel foundation of railroad tracks

    Science.gov (United States)

    Strelkov, A.; Teplykh, S.; Bukhman, N.

    2016-08-01

    Railway bed gravel foundation has a constant permanent impact on urban ecology and ground surface. It is only natural that larger objects, such as railway stations, make broader impact. Surface run-off waters polluted by harmful substances existing in railroad track body (ballast section) flow along railroad tracks and within macadam, go down into subterranean ground flow and then enter neighbouring rivers and water basins. This paper presents analytic calculations and characteristics of surface run-off liquid filtration which flows through gravel multiple layers (railroad track ballast section). The authors analyse liquids with various density and viscosity flowing in multi-layer porous medium. The paper also describes liquid stationary and non-stationary weepage into gravel foundation of railroad tracks.

  13. RAILROAD RENAISSANCE: THE POST-1970 SHORT LINE MOVEMENT

    Directory of Open Access Journals (Sweden)

    Michael Landry

    2001-01-01

    Full Text Available Since 1970 and especially since railroad deregulation in 1980, there has been a proliferation of hundreds of new short line rail companies. These railroads range in length from about a mile to more than a thousand miles (those over 350 miles are called “regionals”. They were mainly formed when major Class 1 rail systems spun off marginal trackage. This paperdiscusses the reasons for the short line renaissance.

  14. Railroad Lines, To provide railroads of Louisiana, Published in 2007, 1:24000 (1in=2000ft) scale, Louisiana State University.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:24000 (1in=2000ft) scale as of 2007. It is described as 'To provide railroads of Louisiana'. The extent of these data is...

  15. Railroad Lines, Railroads 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 Railroad Lines dataset, published at 1:7200 (1in=600ft) scale as of 1999. It is described as 'Railroads in 18 county region in South Georgia'. Data by this...

  16. Energy study of railroad freight transportation. Volume 2. Industry description

    Energy Technology Data Exchange (ETDEWEB)

    None

    1979-08-01

    The United States railroad industry plays a key role in transporting materials to support our industrial economy. One of the oldest industries in the US, the railroads have developed over 150 years into their present physical and operational configuration. Energy conservation proposals to change industry facilities, equipment, or operating practices must be evaluated in terms of their cost impact. A current, comprehensive and accurate data baseline of railroad economic activity and energy consumption is presented. Descriptions of the history of railroad construction in the US and current equipment, facilities, and operation practices follow. Economic models that relate cost and energy of railroad service to the volume of railroad output and to physical and operational parameters are provided. The analyses and descriptions should provide not only an analytical baseline for evaluating the impact of proposed conservation measures, but they should also provide a measure of understanding of the system and its operations to analysts and policy makers who are involved in proposing, analyzing, and implementing such changes.

  17. Railroad Lines, Railroad Crossings: Public Roads, Published in 2007, 1:12000 (1in=1000ft) scale, Middle Georgia RC.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:12000 (1in=1000ft) scale, was produced all or in part from Field Survey/GPS information as of 2007. It is described as...

  18. Railroad Lines, Adams Co Railroads, Published in 2005, 1:4800 (1in=400ft) scale, MSA Professional Services.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:4800 (1in=400ft) scale, was produced all or in part from Published Reports/Deeds information as of 2005. It is described...

  19. 76 FR 39156 - R. J. Corman Railroad Company/Bardstown Line-Lease and Operation Exemption-R. J. Corman Railroad...

    Science.gov (United States)

    2011-07-05

    ... Register on April 9, 2010 (75 FR 18,254), and became effective on April 25, 2010. On May 28, 2010, RJC... Surface Transportation Board R. J. Corman Railroad Company/Bardstown Line--Lease and Operation Exemption--R. J. Corman Railroad Property, LLC R. J. Corman Railroad Company/Bardstown Line (RJC...

  20. Dynamic assessment of existing soft catenary systems using modal analysis to explore higher train velocities: a case study of a Norwegian contact line system

    Science.gov (United States)

    Rønnquist, Anders; Nåvik, Petter

    2015-06-01

    Significant advances made on the rolling stock have considerably increased the possibility of higher speeds in existing railways. Thus, it is important to explore higher speeds and potential limiting factors of existing soft catenary systems. The present paper investigates procedures to assess the dynamic behaviour of these systems using response sampling and modal analysis. The assessment evaluates and quantifies dynamic response along the section. To verify the approach, a case study is conducted and the following assessment methods are used: lengthwise track correlation estimating dynamic predictability, power spectral density estimations before and after passage and short-time Fourier transforms and spectrograms. The combination provides detailed information on the dynamic behaviour. The first part introduces necessary considerations for suggested modal analysis. The second part describes an existing Norwegian section. The case study is conducted using a finite element model including a straight and a given section between Oslo-Trondheim, providing detailed evaluations and system limitation detections.

  1. GIS for Nevada railroads: 1993 report

    International Nuclear Information System (INIS)

    This is an interim report on a task within a large, ongoing study by the University of Nevada, Reno to examine the safety of Nevada railroads. The overall goal, of which this year's research is a middle stage, is to develop models based on the use of geographic information systems (GIS). These models are to enable the selection of the best and safest railway routes for the transport of high-level nuclear waste across Nevada to the proposed repository at Yucca Mountain. Last year's research concluded that the databases are adequate and that GIS are feasible and desirable for displaying the multi-layered data required to reach decisions about safety. It developed several database layers. This report deals with work during 1993 on the use of geographic information systems (GIS) for rail-route selection. The goal was to identify and assemble many of the databases necessary for the models. In particular, the research aimed to identify (a) any problems with developing database layers; and (b) the level of effort required. This year's effort developed database layers for two Nevada counties: Clark and Lincoln. The layers dealt with: topographic information, geologic information, and land ownership. These are among the most important database layers. The database layers were successfully created. No significant problems arose in developing them. The level of effort did not exceed the expected level. The most effective approach is by means of digital, shaded relief maps. (Sample maps appear in plates.) Therefore, future database development will be straightforward. Research may proceed on the full development of shaded relief elevation maps for Elko, White Pine, Nye and Eureka counties and with actual modeling for the selection of a route or routes between the UP/SP line in northern Nevada and Yucca Mountain

  2. 深水悬链锚泊线阻尼计算%Damping calculation Of a deepwater catenary mooring line

    Institute of Scientific and Technical Information of China (English)

    乔东生; 欧进萍

    2011-01-01

    A deepwater catenary mooring line damping mainly includes hydrodynamic drag damping, internal damping and friction damping caused by seabed interaction.Hydrodynamic drag and friction damping are significantly affected by a floating platform while internal damping is dependent on material properties.The energy dissipated by a mooring line due to floating platform oscillation was used to calculate mooring-induced damping.The interaction between mooring line and seabed was based on the hypothesis of rigid seabed.The fluid drag force and inertia force on the mooring line were calculated according to Morrison formula.Under various current velocity distribution conditions, the non-linear dynamic analysis of the mooring line was performed in time-domain with the finite element method.Moreover, the dynamic responses of the mooring line were computed under the wave drift oscillation and the wave frequency oscillation of the floating platform.The maximum tension and the hydrodynamic dampings of the mooring line were compared under the different working conditions.Considering the contact friction between the mooring line and seabed, the maximum tensions of the mooring line were compared under different friction coefficients and the friction damping was calculated.%深水悬链锚泊线的阻尼主要包括流体动力阻尼、内阻尼和海床摩擦阻尼.除内阻尼由材料特性决定以外,流体动力阻尼和海床摩擦阻尼受上部浮体运动的影响比较显著.利用单根锚泊线由于上部浮体运动而吸收的能量来计算锚泊阻尼.锚泊线和海床之间的接触作用基于刚性海床假定,利用Morrison公式计算锚泊线的惯性力和拖曳力荷载.用有限元方法进行非线性时域动力分析,计算在不同流速分布条件下,上部浮体分别发生慢漂运动和波频运动时的锚泊线动力响应,比较不同工况下锚泊线的最大张力和流体动力阻尼.考虑锚泊线与海床之间的接触摩擦,比较不同

  3. Deep Study on Slope of Registration Arm of Catenary of High-speed Railway%高速铁路接触网定位器坡度问题的深化研究

    Institute of Scientific and Technical Information of China (English)

    罗健; 白裔峰; 魏博

    2013-01-01

    Research purposes: The relation between the catenary and pantograph of high - speed railway directly influences the railway operation safety. The catenary and pantograph interact each other via the contact wire and registration arm, so their dynamic and static positions and interaction force are crucial to the function of the catenary and pantograph. The deep researches were done on the slope of registration arm, the catenary staggers in straight line and curve, the first dropper position and the relations among them for providing the reference to the optimal design of the catenary of high - speed railway. Research conclusions: (1) The slope of registration arm relates to the contact wire tension, the first dropper position, the stagger, the span length, the weights of registration arm and clamp, the curve radius and the superelevation of outer rail. (2) From the research presented in this paper, it is concluded when the other main parameters of the catenary are constant, the slope of registration arm of the catenary of 300 km/h or above high - speed railway is not less than 8 degree in straight line section, and in the curve section the slope is not less than 6 degree and the maximum slope is not bigger than 16 degree. (3)To guarantee a good slope of the registration arm, the catenary stagger is 00 mm in both sections of straight line and curve with large radius, and the distance from the first dropper to the registration point is 5 meter. It can be as the reference to the similar works.%研究目的:高速铁路接触网与受电弓关系直接影响到运营安全.接触网是通过接触线和定位器与受电弓相互作用,它们的动静态空间位置、相互作用力是确保弓网性能的关键.本文对定位器坡度、接触网在直线和曲线的拉出值、第一吊弦点位置设置及之间的相互关系进行详细研究,为高铁接触网设计优化提供参考.研究结论:(1)定位器坡度与导线张力、第一吊弦点位置

  4. Finite Element Simulation and Small Scale Model Experiment of Catenary Icing%覆冰接触网的有限元仿真及其小比例模型试验

    Institute of Scientific and Technical Information of China (English)

    谢将剑; 王毅; 刘志明; 董方舟; 吕锦柏

    2013-01-01

    In order to provide theoretical foundation for on-line monitoring of catenary, the static response of ice-coated catenary was investigated. First, a six-span automatic tensioned simple catenary finite element model was built via ANSYS, the static response of ice-coated catenary was conducted with different ice thicknesses, sag variations and end anchorage displacements of contact and messenger wire with different ice thickness were obtained. Then a 1/50 scale model of six-span catenary was constructed based on the similarity theory. End anchorage displacements of contact and messenger wire with diverse ice thicknesses were achieved through small-scale model test. Comparison of the displacements between small-scale model test and finite element simulation validated the feasibility of small-scale model. The results were converted to real catenary, which were compared with simulation results of real catenary, confirmed the correctness of the small-scale model. This small-scale model offers a basis for further research of catenary characteristics.%为了为接触网覆冰的在线监测提供理论基础,对覆冰后接触网的静态响应进行研究。首先,利用ANSYS建立6跨张力自动补偿的简单链型悬挂接触网的有限元模型,对不同覆冰厚度时的接触网的静态响应进行仿真分析,得到随覆冰厚度的变化的接触线和承力索的弛度变化以及下锚处位移。然后,基于相似理论建立1/50的6跨接触网小比例模型。通过模型试验得到不同厚度下接触线和承力索的下锚处位移,对比小比例模型的仿真和试验结果验证了小比例模型的可用性。将模型试验结果推广到实际接触网,对比推广后的试验结果和实际接触网的仿真结果,进一步验证了小比例模型的正确性。该小比例模型可为深入研究接触网特性试验提供试验基础。

  5. The Nevada railroad system: Physical, operational, and accident characteristics

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-09-01

    This report provides a description of the operational and physical characteristics of the Nevada railroad system. To understand the dynamics of the rail system, one must consider the system`s physical characteristics, routing, uses, interactions with other systems, and unique operational characteristics, if any. This report is presented in two parts. The first part is a narrative description of all mainlines and major branchlines of the Nevada railroad system. Each Nevada rail route is described, including the route`s physical characteristics, traffic type and volume, track conditions, and history. The second part of this study provides a more detailed analysis of Nevada railroad accident characteristics than was presented in the Preliminary Nevada Transportation Accident Characterization Study (DOE, 1990).

  6. Does a critical speed for railroad vehicles exist?

    DEFF Research Database (Denmark)

    True, Hans

    1994-01-01

    The author discusses the definition and existence of a critical speed for the onset of hunting of railroad vehicles. First the field test situation is described. It is argued that the important problem is the determination of the forces and accelerations in the vehicle and the rails, which may...... be large even when the vehicle does not hunt. Next the author discusses the relevance of the critical speed in railway engineering. It is desirable to know the speed below which a vehicle will not hunt, since hunting is always connected with large wheel-rail forces. Next the modelling of railroad vehicles...... is discussed and the nonlinear aspects are emphasized. The author explains why it is necessary to reformulate the mathematical problem for calculation of the critical speed due to the nonlinear character of the modelling. It is suggested that another critical speed be defined for a railroad vehicle. It can...

  7. Handbook for preservation of local railroad service. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Patton, E.P.; Langley, C.J. Jr.

    1977-01-01

    Throughout the United States, there is an accelerating abandonment of redundant and/or unprofitable light-density railroad lines. This abandonment can be economically harmful to both the shippers and the communities that were previously served. Although greater dependence upon truck transportation is a viable alternative in many cases, other situations indicate that the greatest priority should be attached to preserving some form of local railroad service. The objective of this research was to develop a handbook to assist shippers, local and state governments, and rail planners when their Class I rail service is scheduled for abandonment. Two major options are detailed in the handbook. The first regards innovative procedures which may be used by local groups in attempting to preserve service by the existing Class I carrier. The second approach considers the alternative of operating the particular line as an independent railroad.

  8. Mesotheliomas due to asbestos used in railroads in Italy.

    Science.gov (United States)

    Maltoni, C; Pinto, C; Mobiglia, A

    1991-12-31

    The available knowledge of the oncogenic risks of asbestos, the presentation of some data on the uses of asbestos in railroads, with particular regard to the Italian State Railroads (Ferrovie dello Stato = FS), and the identification of groups at risk because of exposure to asbestos used in railroads are briefly reviewed. The available data in the literature on the pathologic effects of such exposure, and in particular on the onset of mesotheliomas among machinists and other railroad workers, are also summarized. Eighty-three cases, in various Italian regions, of mesothelioma (78 pleural, 4, peritoneal, and 1 pericardial) are reported that are related to the exposure to asbestos used in railroads. Twenty-six of these cases (among which 25 were reported in the Emilia-Romagna region) were submitted to a detailed study at the Bologna Institute of Oncology. Forty-nine cases of mesothelioma occurred among FS workers, in particular machinists; 29 cases occurred among machinists of rolling-stock workshops not belonging to the FS; 3 cases occurred among travelling workers of rolling-stock not belonging to the FS; 2 cases were found in members of the family (a daughter and a wife) of FS workers. This series of cases, together with similar data from the literature, proves the existence and gravity of an actual health risk due to asbestos used in the railroads. On the basis of the available data, the following steps are considered necessary: the adoption of preventive measures, the performance of medical oncological surveillance, the promotion of systematic epidemiologic investigations, and, finally, the placement of greater emphasis on basic research, aimed at generating information on the biological events taking place during the incubation period of the tumors. This information, hopefully, could be used to reduce the biological effect of exposure, and therefore for controlling the neoplastic process before onset of the disease in those who, having been exposed, although

  9. Energy Conservation Projects to Benefit the Railroad Industry

    Energy Technology Data Exchange (ETDEWEB)

    Clifford Mirman; Promod Vohra

    2009-12-31

    The Energy Conservation Projects to benefit the railroad industry using the Norfolk Southern Company as a model for the railroad industry has five unique tasks which are in areas of importance within the rail industry, and specifically in the area of energy conservation. The NIU Engineering and Technology research team looked at five significant areas in which research and development work can provide unique solutions to the railroad industry in energy the conservation. (1) Alternate Fuels - An examination of various blends of bio-based diesel fuels for the railroad industry, using Norfolk Southern as a model for the industry. The team determined that bio-diesel fuel is a suitable alternative to using straight diesel fuel, however, the cost and availability across the country varies to a great extent. (2) Utilization of fuel cells for locomotive power systems - While the application of the fuel cell has been successfully demonstrated in the passenger car, this is a very advanced topic for the railroad industry. There are many safety and power issues that the research team examined. (3) Thermal and emission reduction for current large scale diesel engines - The current locomotive system generates large amount of heat through engine cooling and heat dissipation when the traction motors are used to decelerate the train. The research team evaluated thermal management systems to efficiently deal with large thermal loads developed by the operating engines. (4) Use of Composite and Exotic Replacement Materials - Research team redesigned various components using new materials, coatings, and processes to provide the needed protection. Through design, analysis, and testing, new parts that can withstand the hostile environments were developed. (5) Tribology Applications - Identification of tribology issues in the Railroad industry which play a significant role in the improvement of energy usage. Research team analyzed and developed solutions which resulted in friction

  10. 76 FR 21426 - Union Pacific Railroad Company-Temporary Trackage Rights Exemption-BNSF Railway Company

    Science.gov (United States)

    2011-04-15

    ... Surface Transportation Board Union Pacific Railroad Company--Temporary Trackage Rights Exemption--BNSF Railway Company AGENCY: Surface Transportation Board, DOT. ACTION: Partial Revocation of Exemption... protective conditions set forth in Oregon Short Line Railroad--Abandonment Portion Goshen Branch...

  11. 77 FR 38884 - Sisseton Milbank Railroad Company-Acquisition and Operation Exemption-SLA Property Management...

    Science.gov (United States)

    2012-06-29

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Sisseton Milbank Railroad Company--Acquisition and Operation Exemption--SLA... from SLA Property Management Limited Partnership and Sisseton Milbank Railroad, Inc., their...

  12. 76 FR 5649 - Tongue River Railroad Company, Inc.-Construction and Operation-Western Alignment

    Science.gov (United States)

    2011-02-01

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Tongue River Railroad Company, Inc.--Construction and Operation-- Western... Tongue River Railroad Company's (TRRC) application to construct and operate a rail line in...

  13. Development of university-industry partnerships in railroad engineering education

    Science.gov (United States)

    Lautala, Pasi T.

    Rail transportation has been an important part of the North American transportation network since the 19th century and it continues to be a major contributor to the economic well-being and the global competitiveness of the U.S. The recent expansion in freight rail volumes and forecasts for continuous growth, together with more favorable attitudes for urban passenger rail present several challenges for the rail industry. One of the challenges is the availability of a well educated engineering workforce. The rail industry has recognized a need to attract new railroad professionals from various disciplines for management and technical positions, but most universities eliminated railroad engineering from their curricula after the recruitment levels faded several decades ago. Today, railroad expertise and related engineering courses exist at only a few universities and most students graduate without any exposure to rail topics. While industry representatives have expressed their concern about a future workforce, little data is available on the extent of the demand, on the characteristics and skills of preferred candidates, and on the role that universities can play. A benchmarking study was undertaken to investigate the demand for university engineering graduates and assess whether current methods are sufficient to attract, educate, recruit, train and retain engineering students in the railroad profession. Data was collected from industry human resources and training managers to define the quantitative and qualitative needs for railroad engineers. In addition, recently hired engineers working in the rail industry were surveyed to determine the extent of their university exposure in rail topics and how it affected their career choice. The surveys indicated an increase of over 300 percent in the annual recruitment for railroad engineers by the participating companies between 2002 and 2005. Recruitment levels are expected to remain high for the next five to ten years due

  14. 77 FR 6411 - Training, Qualification, and Oversight for Safety-Related Railroad Employees

    Science.gov (United States)

    2012-02-07

    ..., and 243 Training, Qualification, and Oversight for Safety-Related Railroad Employees; Proposed Rule #0... Training, Qualification, and Oversight for Safety-Related Railroad Employees AGENCY: Federal Railroad... employee to develop and submit a training program to FRA for approval and to designate the qualification...

  15. 20 CFR 216.42 - How a private railroad pension affects a supplemental annuity.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 1 2010-04-01 2010-04-01 false How a private railroad pension affects a... pension affects a supplemental annuity. (a) What is a private railroad pension. The Board determines whether a pension established by a railroad employer is a private pension that will cause a reduction...

  16. 77 FR 25229 - Dallas, Garland & Northeastern Railroad Company-Discontinuance of Trackage Rights Exemption-in...

    Science.gov (United States)

    2012-04-27

    ... Surface Transportation Board Dallas, Garland & Northeastern Railroad Company--Discontinuance of Trackage Rights Exemption--in Dallas County, TX Dallas, Garland & Northeastern Railroad Company (DGNO) has filed a... from Union Pacific Railroad Company exclusive trackage rights over the Line. See Dallas,...

  17. 77 FR 27856 - Tennessee Southern Railroad Company, Patriot Rail, LLC, Patriot Rail Holdings LLC, and Patriot...

    Science.gov (United States)

    2012-05-11

    ... LLC, and Patriot Rail Corp.--Continuance in Control Exemption--Kingman Terminal Railroad, LLC... notice of exemption under 49 CFR 180.2(d)(2) to continue in control of Kingman Terminal Railroad, LLC... filed verified notice of exemption in Kingman Terminal Railroad, LLC--Operation Exemption--...

  18. 78 FR 41993 - Ann Arbor Railroad, Inc.-Lease Exemption-Norfolk Southern Railway Company

    Science.gov (United States)

    2013-07-12

    ... Surface Transportation Board Ann Arbor Railroad, Inc.--Lease Exemption--Norfolk Southern Railway Company... of exemption should be issued, and does so here. Notice Ann Arbor Railroad, Inc. (AARR), a Class III... Southern Railway Company (NSR) two rail lines totaling 3.69 miles: (1) A line of railroad between...

  19. 77 FR 14058 - BNSF Railway Company-Trackage Rights Exemption-Union Pacific Railroad Company

    Science.gov (United States)

    2012-03-08

    ... Surface Transportation Board BNSF Railway Company--Trackage Rights Exemption--Union Pacific Railroad Company Pursuant to a written trackage rights agreement, Union Pacific Railroad Company (UP) has agreed to grant trackage rights to BNSF Railway Company (BNSF) over a portion of a line of railroad known as...

  20. 49 CFR 216.11 - Special notice for repairs-railroad freight car.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Special notice for repairs-railroad freight car...—railroad freight car. (a) When an FRA Motive Power and Equipment Inspector or a State Equipment Inspector determines that a railroad freight car is not in conformity with the requirements of the FRA Freight...

  1. 77 FR 50323 - Railroad Workplace Safety; Roadway Worker Protection Miscellaneous Revisions (RRR)

    Science.gov (United States)

    2012-08-20

    ... of contractor employees at Sec. Sec. 243.1(b), 243.101(e)-(f), and 243.209. 77 FR 6453. These... Railroad Workplace Safety; Roadway Worker Protection Miscellaneous Revisions (RRR); Proposed Rule #0;#0... TRANSPORTATION Federal Railroad Administration 49 CFR Part 214 RIN 2130-AB89 Railroad Workplace Safety;...

  2. 49 CFR 213.347 - Automotive or railroad crossings at grade.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Automotive or railroad crossings at grade. 213.347 Section 213.347 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD... Higher § 213.347 Automotive or railroad crossings at grade. (a) There shall be no at-grade...

  3. Study on Flow Patterns of Two-phase Flow in Catenary Riser%悬链线立管多相流流型研究

    Institute of Scientific and Technical Information of China (English)

    于涛; 赵金睿; 王同吉; 王吉壮

    2014-01-01

    以水和空气为介质,在不同倾角的水平段和悬链线段组合中,研究气液两相流可能出现的流型及其特点,其中流型主要通过肉眼观察结合压力波动检测的方法来进行辨别。同时针对实验范围内出现的部分流型,研究该流型下管段压力和压降随气液速度以及角度的变化规律,并对悬链线管段为段塞流和严重段塞流时管内含气率、气泡长度、气泡速度、气泡频率等参数进行测量。结果表明:试验范围内共出现9种组合流型,4种组合区域所占区域最广;气液流速的变化对管线压降有一定的影响,水平管段的角度对压降的影响远小于气液速度的影响;液速一定时,段塞流和严重段塞流含气率随气速的增加而增加,气速一定时,段塞流和严重段塞流含气率随液速的增加而减小。%The flow patterns and flow characteristics using water and air as media were studied in this paper,which appear in combination of horizontal pipeline and catenary riser.The flow pattern was j udged by observation and measuring the pressure along the pipeline and catenary riser.The change of pressure a-long the pipeline and pressure drop with different gas and liquid velocities as well as the angle of horizontal pipeline in a part of flow patterns were studied,the parameters such as void fraction,bubble length,bubble velocity,bubble frequency of slug flow and serious slug flow in the catenary riser were measured.The re-sults show that there are four flow patterns occupy the most extensive area in the nine combinations of flow pattern.The changes of gas and liquid flow rates have an impact on the pipeline pressure drop.The im-pact of the angle of horizontal pipe section to the pipeline pressure drop is much smaller than the flow rates of gas and liquid.When the liquid flow rate remains unchanged,the void fraction of slug flow and serious slug flow increase with the increasing of gas flow rate.When the gas flow

  4. 21 CFR 1250.51 - Railroad conveyances; discharge of wastes.

    Science.gov (United States)

    2010-04-01

    ... CONVEYANCE SANITATION Equipment and Operation of Land and Air Conveyances § 1250.51 Railroad conveyances... servicing area, toilets shall be kept locked unless means are provided to prevent contamination of the area... Food Safety and Applied Nutrition (HFS-627), Food and Drug Administration, 5100 Paint Branch...

  5. 49 CFR 236.905 - Railroad Safety Program Plan (RSPP).

    Science.gov (United States)

    2010-10-01

    ... for Processor-Based Signal and Train Control Systems § 236.905 Railroad Safety Program Plan (RSPP). (a...; and (iv) The identification of the safety assessment process. (2) Design for verification and... RSPP must require that references to any non-published standards be included in the PSP. (3) Design...

  6. 49 CFR 840.3 - Notification of railroad accidents.

    Science.gov (United States)

    2010-10-01

    ... hospital; (2) The evacuation of a passenger train; (3) Damage to a tank car or container resulting in...) Accidents involving joint operations must be reported by the railroad that controls the track and directs... is required by paragraph (a) or (b) of this section occurs in a remote area, the time limits...

  7. The Old Railroad Right-of-Way Challenge

    Science.gov (United States)

    Roman, Harry T.

    2009-01-01

    This article presents a classroom challenge involving an old railroad right-of-way. Using the knowledge gained via research into what others may have done with utilizing old rail lines, along with team creative efforts, students should begin generating ideas for how to use these land areas. The students might suggest the land areas be used for:…

  8. 49 CFR 1.49 - Delegations to Federal Railroad Administrator.

    Science.gov (United States)

    2010-10-01

    ... by the Crime Control Act of 1990 (Pub. L. 101-647) as it relates to a railroad police officer's authority to enforce the laws of any jurisdiction in which the police officer's rail carrier employer owns... intervene and present evidence concerning applicants' fitness in Commission proceedings under 49 U.S.C....

  9. 75 FR 7152 - Stillwater Central Railroad, Inc.-Lease and Operation Exemption-Hollis & Eastern Railroad L.L.C.

    Science.gov (United States)

    2010-02-17

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Stillwater Central Railroad, Inc.--Lease and Operation Exemption--Hollis... verified notice of exemption under 49 CFR 1150.41 to lease and to operate, pursuant to a lease...

  10. 76 FR 27173 - Carolina Coastal Railway, Inc.-Acquisition and Operation Exemption-Rocky Mount & Western Railroad...

    Science.gov (United States)

    2011-05-10

    ... Surface Transportation Board Carolina Coastal Railway, Inc.--Acquisition and Operation Exemption--Rocky Mount & Western Railroad Co., Inc. d/b/a Nash County Railroad Carolina Coastal Railway, Inc. (CLNA), a... Rocky Mount & Western Railroad Co., Inc. d/b/a Nash County Railroad (NCR), and to operate,...

  11. Development of university-industry partnerships in railroad engineering education

    Science.gov (United States)

    Lautala, Pasi T.

    Rail transportation has been an important part of the North American transportation network since the 19th century and it continues to be a major contributor to the economic well-being and the global competitiveness of the U.S. The recent expansion in freight rail volumes and forecasts for continuous growth, together with more favorable attitudes for urban passenger rail present several challenges for the rail industry. One of the challenges is the availability of a well educated engineering workforce. The rail industry has recognized a need to attract new railroad professionals from various disciplines for management and technical positions, but most universities eliminated railroad engineering from their curricula after the recruitment levels faded several decades ago. Today, railroad expertise and related engineering courses exist at only a few universities and most students graduate without any exposure to rail topics. While industry representatives have expressed their concern about a future workforce, little data is available on the extent of the demand, on the characteristics and skills of preferred candidates, and on the role that universities can play. A benchmarking study was undertaken to investigate the demand for university engineering graduates and assess whether current methods are sufficient to attract, educate, recruit, train and retain engineering students in the railroad profession. Data was collected from industry human resources and training managers to define the quantitative and qualitative needs for railroad engineers. In addition, recently hired engineers working in the rail industry were surveyed to determine the extent of their university exposure in rail topics and how it affected their career choice. The surveys indicated an increase of over 300 percent in the annual recruitment for railroad engineers by the participating companies between 2002 and 2005. Recruitment levels are expected to remain high for the next five to ten years due

  12. Steel catenary riser design based on coupled analysis methodology; Projeto de um riser rigido em catenaria baseado em metodologia de analise acoplada

    Energy Technology Data Exchange (ETDEWEB)

    Bahiense, Rodrigo A.; Rodrigues, Marcos V. [Det Norske Veritas (DNV), Rio de Janeiro, RJ (Brazil)

    2008-07-01

    Due to adoption of oil and gas production systems to deep and ultra-deep water, achieving frontiers that were not conceivable before, research in computational methods has contributed to implementation of sophisticated and efficient numerical tools in order to perform simulations considering those operational conditions. Thus, this work presents a steel catenary riser (SCR) design which is connected to a semi-submersible platform where the applied motions to SCR are obtained from analyses based on de-coupled and coupled methodologies. With increase of the line number of the system and water depth, the effects due to coupling of the lines on the platform motions are significant. It can be observed from performed evaluations for a floating production system, comparing the obtained results for SCR under extreme and fatigue conditions when it was submitted to the platform motions considering both methodologies mentioned. So, from the results obtained it can be concluded that for production system evaluated the adoption of decoupled methodology presents more conservative results. Thus the adoption of the coupled model associated to design practice of production lines presents as an alternative more realist and accurate to provide the optimization in the design of these structures. (author)

  13. Contrastive analysis on calculation theories of catenary and parabolic cable%悬链线与抛物线缆索计算理论对比分析

    Institute of Scientific and Technical Information of China (English)

    郭常瑞

    2012-01-01

    This thesis respectively establishes suspension cable linear equation with catenary and parabolic theories induces the largest sag of two curves under different height of two bearing points,and sets up tension equation.And then,it compares and analyzes the accuracy of two models in tension calculation of suspension cable and the sag ratio of suspension cable calculated with parabolic theory,and obtains some useful conclusions.%利用悬链线和抛物线理论分别建立架空缆索线型方程,推导两支承点不等高时两种曲线最大垂度,并建立张力方程,对比分析两种模型在架空缆索张力计算中的精度,以及采用抛物线理论计算架空缆索可接受的垂跨比范围,并得出一些有益的结论。

  14. Survey of meteorological and oceanographic data for the steel catenary riser design; Levantamento de dados meteo-oceanograficos para projeto de risers rigidos

    Energy Technology Data Exchange (ETDEWEB)

    Rubiao, Luiz Eduardo Ganem; Leite, Roberto Teixeira; Ling, Mau Siu; Kraiser, Mara [Chemtech Egenharia (Brazil); Lima, Cesar de Souza; Machado Filho, Remo Zauli [PETROBRAS, Rio de Janeiro, RJ (Brazil)

    1998-07-01

    This paper presents SISMO, the system developed by PETROBRAS and Chemtech for the acquisition of Meteorological and Oceanographic data during the experiment involving the first steel catenary riser (SCR) that will be installed in P-18, one of the most important platforms on the Marlim Oil Field, Campos Basin, Rio de Janeiro. In the near future, PETROBRAS intends to use this new class of risers to replace the presently used flexible risers, that are much more expensive. The information obtained with this first experiment will be used for the development of a design procedure for the future SCR. SISMO was developed in order to allow a non assisted operation and the remote communication between PETROBRAS R and D Center (CENPES) and the meteorological and ooceanographic equipment installed in the platform. It was also designed and developed to be integrated with other acquisition systemsinvolved in the SCR experiment. Completely object oriented programmed, SISMO was developed to run a Windows NT environment and to communicate with the following equipment: meteorological sensors (wind, pressure, temperature and humidity), wave sensors installed on the platform and on an oceanographic buoy and an acoustic Doppler current profiler (ADCP). (author)

  15. Electromechanical Suspension-based Energy Harvesting Systems for Railroad Applications

    OpenAIRE

    Nagode, Clement Michel Jean

    2013-01-01

    Currently, in the railroad industry, the lack of electrical sources in freight cars is a problem that has yet to find practical solutions. Although the locomotive generates electricity to power the traction motors and all the equipment required to operate the train, the electrical power cannot, in a practical manner, be carried out along the length of the train, leaving freight cars unpowered. While this has not been a major issue in the past, there is a strong interest in equipping modern ca...

  16. 49 CFR 392.10 - Railroad grade crossings; stopping required.

    Science.gov (United States)

    2010-10-01

    ...) Division 2.3 Poison gas (iv) Division 4.3 (v) Class 7 (vi) Class 3 Flammable (vii) Division 5.1 (viii... (xiii) Class 3 Combustible liquid (xiv) Division 4.1 (xv) Division 5.1 (xvi) Division 5.2 (xvii) Class 8... purposes, within a business district, as defined in § 390.5 of this chapter. (2) A railroad grade...

  17. Establishment of 3D Model for Catenary and Nonlinear Solution for Its Wind Deflection%接触网三维模型的建立与风偏的非线性求解

    Institute of Scientific and Technical Information of China (English)

    宋洋; 刘志刚; 汪宏睿; 姜静

    2015-01-01

    本文利用空间梁单元与柔性索单元离散电气化铁路接触网,考虑梁单元变形时的几何非线性,采用动坐标迭代法进行求解,计算平衡状态下的吊弦长度,建立接触网三维力学模型。分别利用流体力学软件和风洞试验计算接触线截面的气动力系数,并将横风载荷施加到此模型中,研究风速、张力等因素对接触线风偏的影响,以及考虑几何非线性在研究接触网较大位移问题时的必要性。研究结果表明:在求解接触网大位移问题时,不考虑梁单元变形产生的几何非线性,会对结果造成一定的误差。本文仿真结果可为接触网防风设计提供有益借鉴,提出的仿真方法可适用于接触网发生较大位移时的精确计算,也为研究更为复杂的接触网三维力学特性提供条件。%In this paper ,the spatial beam element and flexible cable element were adopted to disperse the cate‐nary of electrified railway .Based on geometric nonlinearity caused by the deformation of beam element ,and through the use of the moving coordinate iterative method to improve the solution procedure ,the lengths of the droppers under the equilibrium state were calculated and accurate 3D mechanical model for the catenary was es‐tablished .The aerodynamic coefficients of contact wire section were calculated through the CFD software and wind tunnel experiment ,respectively .With the cross‐wind loads being applied to the model ,the influence of wind speed ,tension and other factors on the wind deflection of the catenary was studied and the necessity of considering geometric nonlinearity in studying large displacement problem of the catenary was evaluated .The results implied that the neglection of geometric nonlinearity caused by the deformation of beam element would cause some errors on the results when the large displacement problem of the catenary was being solved .The simulation results can provide a

  18. Improving an energy harvesting device for railroad safety applications

    Science.gov (United States)

    Pourghodrat, Abolfazl; Nelson, Carl A.; Phillips, Kyle J.; Fateh, Mahmood

    2011-03-01

    Due to hundreds of fatalities annually at unprotected railroad crossings (mostly because of collisions with passenger vehicles and derailments resulting from improperly maintained tracks and mechanical failures), supplying a reliable source of electrical energy to power crossing lights and distributed sensor networks is essential to improve safety. With regard to the high cost of electrical infrastructure for railroad crossings in remote areas and the lack of reliability and robustness of solar and wind energy solutions, development of alternative energy harvesting devices is of interest. In this paper, improvements to a mechanical energy harvesting device are presented. The device scavenges electrical energy from deflection of railroad track due to passing railcar traffic. It is mounted to and spans two rail ties and converts and magnifies the track's entire upward and downward displacement into rotational motion of a PMDC generator. The major improvements to the new prototype include: harvesting power from upward displacement in addition to downward, changing the gearing and generator in order to maximize power production capacity for the same shaft speed, and improving the way the system is stabilized for minimizing lost motion. The improved prototype was built, and simulations and tests were conducted to quantify the effects of the improvements.

  19. Desarrollo de un Método Eficiente para el Estudio de la Interacción Dinámica Pantógrafo-Catenaria An Efficient Method for Study of the Pantograph-Catenary Dynamic Interaction

    Directory of Open Access Journals (Sweden)

    Jesús Benet

    2006-01-01

    Full Text Available Se desarrolla un procedimiento para el estudio de la interacción dinámica pantógrafo-catenaria en líneas ferroviarias. Se ha obtenido un sistema de ecuaciones diferenciales no lineales con restricciones, comentándose las modelizaciones de los sistemas pantógrafo, catenaria, así como de las condiciones de restricción. Las ecuaciones se han integrado numéricamente como ecuaciones diferenciales ordinarias mediante el método de las diferencias centrales. El procedimiento expuesto ha servido de base para el desarrollo de un software de altas prestaciones en Visual C, que permite simular el comportamiento mecánico de varios pantógrafos interactuando con la línea aérea de contacto (catenaria, con objeto de obtener unos valores óptimos de montaje, tanto en líneas convencionales como de alta velocidadA method for the study of the pantograph-catenary dynamic interaction in railways is presented. A non linear system of differential equations with constraints has been obtained, and the models for pantograph, catenary and constraints, are discussed. The equations have been solved as ordinary differential equations using the central differences method. This procedure has been used to develop high performance software in Visual C, to simulate the mechanical behavior of several pantographs interacting with the contact aerial line (catenary, in order to obtain optimal installation values both in conventional and high-speed lines.

  20. 地铁车辆段带上盖接触网悬挂方案研究%Discussion on Suspension Mode of Catenary in Subway Car Depot with Cover

    Institute of Scientific and Technical Information of China (English)

    王财华

    2011-01-01

    Research purposes: Beginning with the analyses of all kinds of suspension mode of catenary and according to the design value(h) of the head room of the track section, the design scheme of the catenary suspension in the subway car depot with cover is offered. This scheme mixes all kinds of the single design standard of conventional catenary together. This scheme not only can meet the requirements of reliability in safety and rationality in technology, but also it has features of the good usability in function, good looking and the more rationality in financial investment because of the optimization of the distribution of resources. This mode can provide the reference to the similar works. Research conclusions: When the design value H of the head room of the track section is equal to or less than 6.5 m,the rigid suspension mode of the catenary should be adopted. When the design value is more than 6.5 m and equal to or less than 8 m, the suspension mode of using ground column should be used along with the ceiling suspension. When the design value is more than 8 m, the suspension mode of the ground column and twist - arm post should be adopted.%研究目的:从架空接触网的各种悬挂分析入手,根据轨行区的净空高度设计值(H),提出适合车辆段带上盖条件下的接触网设计方案,这种方案融合常规接触网的各种单一设计标准,不仅在系统上满足安全可靠性、技术合理性的要求,而且功能适用性强、美观性好,并且因优化资源配置而使经济投资更加合理,这种新的模式可以为类似工程设计提供参考借鉴.研究结论:H≤6.5 m,采用刚性悬挂;6.5 m<H≤8 m,采用地面立杆与顶板悬挂相结合的方式;H>8m,采用地面立杆腕臂柱悬挂.

  1. 基于定位装置参数等效的接触网二维力学模型%Two-dimensional Mechanical Model of the Catenary Based on Equivalent Steady Device Parameters

    Institute of Scientific and Technical Information of China (English)

    关金发; 吴积钦

    2015-01-01

    接触网既是供电的线路,又是受电弓的滑道,其结构为三维柔性索网,当受电弓通过时,支持点和张力补偿点不存在瞬时大位移,其动态行为可以忽略,定位点由于存在非线性铰接,定位点处的动态行为不能被忽略。为等效定位点的动态行为,通过静力学分析,简化三维力学模型,将定位装置的三维非线性铰接等效为二维线性弹簧,并推导弹簧的等效刚度值计算公式,得到接触网二维力学模型。最后通过仿真实例,验证接触网二维力学模型的静态和动态效果与接触网三维模型完全吻合,并确认定位装置等效刚度的计算方法。%The catenary serves for power supply and as a path for pantograph sliding, When a pantograph is passing by, there is no large instant displacement at the support points and the tension compensation points, therefore the dynamic behavior can be ignored on account of its three-dimensional soft wire structure . However, the dynamic behavior at the fixing points cannot be ignored because of the non-linear hinge. To obtain the equivalent dynamic behavior of the fixing points, the three-dimensional mechanical model is simplified by static analysis, which converts the three-dimensional nonlinear hinge into a two-dimensional linear spring, and then the formula to calculate equivalent stiffness of the spring is derived and the two-dimensional mechanical model of the catenary is established. Finally, the static and dynamic effects of the two-dimensional mechanical model of the catenary are proved with simulation in full agreement with that of the three-dimensional mechanical model of the catenary, and the method to calculate the equivalent stiffness of the steady device is confirmed.

  2. A mathematical modeling approach to resource allocation for railroad-highway crossing safety upgrades.

    Science.gov (United States)

    Konur, Dinçer; Golias, Mihalis M; Darks, Brandon

    2013-03-01

    State Departments of Transportation (S-DOT's) periodically allocate budget for safety upgrades at railroad-highway crossings. Efficient resource allocation is crucial for reducing accidents at railroad-highway crossings and increasing railroad as well as highway transportation safety. While a specific method is not restricted to S-DOT's, sorting type of procedures are recommended by the Federal Railroad Administration (FRA), United States Department of Transportation for the resource allocation problem. In this study, a generic mathematical model is proposed for the resource allocation problem for railroad-highway crossing safety upgrades. The proposed approach is compared to sorting based methods for safety upgrades of public at-grade railroad-highway crossings in Tennessee. The comparison shows that the proposed mathematical modeling approach is more efficient than sorting methods in reducing accidents and severity.

  3. Economies of Density and Regulatory Change in the U.S. Railroad Freight Industry

    OpenAIRE

    Bitzan, John D; Keeler, Theodore E.

    2007-01-01

    Two reform acts, the Staggers Railroad Act of 1980 and the Railroad Revitalization and Regulatory Reform Act of 1976, represented big changes in U.S. policy toward railroads. An important welfare gain from these changes predicted by researchers was the efficiency gain from increased densities in rail freight traffic. However, few retrospective studies have analyzed the accuracy of these predictions. The present paper fills this gap by analyzing the effects of regulatory changes on freight tra...

  4. The impact of reliability on the productivity of railroad companies

    DEFF Research Database (Denmark)

    Abate, Megersa Abera; Lijesen, Mark; Pels, Eric;

    2013-01-01

    This paper studies the relationship between reliability (proxied by punctuality) and productivity in passenger railroad services. Increasing reliability may lower productivity, as it requires inputs, that can’t be used to produce outputs. The relationship between reliability and productivity also...... runs through other factors, in which case a positive relationship may be expected. We apply data envelopment analysis and the Malmquist index approach to a panel of seven European railway systems to explore this relationship. Our empirical results suggest that increasing reliability does not harm...

  5. 气液混输悬链线立管系统两相流特性实验%EXPERIMENTS ON TWO-PHASE FLOW CHARACTERISTICS IN A CATENARY RISER SYSTEM WITH THE GAS AND LIQUID MIXTURE TRANSPORTATION

    Institute of Scientific and Technical Information of China (English)

    高嵩; 李巍; 尤云祥; 俞忠; 胡天群

    2012-01-01

    Severe slugging is an undesirable flow phenomenon for a pipline-riser system with the gas-liquid mixture transportation in ocean engineering. In present paper experiments were performed for the two-phase flow characteristics in a horizontal/declination pipeline-catenary riser system with the gas-liquid mixture transportation, and flow patterns were identified by series combinations of gas and liquid superficial velocities, including severe slug, intermittent and oscillation flows. The formation mechanisms of these flow patterns were presented and the conditions where the severe slug flow can be produced in the catenary riser were obtained. The results show that the severe slug flow in a catenary riser has remarkably periodic characteristics and consists of four stages in a circle, including slug formation, slug production, slug blowout and liquid fallback, respectively, where the characteristics of the flow parameters in each stage were given. Moreover, the formation mechanisms of severe slug flows in both catenary and vertical risers were compared and analyzed, and a remarkable differenti- ation in the slug formation stages for the two types of risers was observed, where the formation procedure of a mixture liquid slug with both gas and liquid first occurs before the pure liquid slug in the catenary riser can be produced, however, there is no occurrence of such a procedure of the mixture liquid slug for the vertical riser.%严重段塞流是海洋工程气液混输管线-立管系统中常见的一种特殊有害流动现象,采用水平-下倾-悬链线立管气液混输组合管道系统,通过系列实验在悬链线立管中获得了严重段塞流、间歇流和震荡流等流型,阐述了这些流动现象的形成机理,提出了能够产生严重段塞流的判定准则.结果表明,悬链线立管严重段塞流具有明显周期性,在一个周期内的流动特征可分为液塞形成、液体出流、液气喷发及液体回流等4个阶段,进而给

  6. Railroad Lines, MFRDC has railroad data for Dooly, Crisp, Macon, Taylor, Schley, Marion and Webster counties., Published in 2008, 1:1200 (1in=100ft) scale, Middle Flint RDC.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:1200 (1in=100ft) scale as of 2008. It is described as 'MFRDC has railroad data for Dooly, Crisp, Macon, Taylor, Schley,...

  7. Railroad Lines, Railroad Right 0f Way, Published in 1992, 1:4800 (1in=400ft) scale, LaCrosse County Zoning Planning & Land Information.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:4800 (1in=400ft) scale, was produced all or in part from Published Reports/Deeds information as of 1992. It is described...

  8. Emotional Intelligence and job performance: Evidence from railroad industry

    Directory of Open Access Journals (Sweden)

    Masoumeh Bahmanabadi

    2014-08-01

    Full Text Available This paper presents an empirical investigation to study the relationship between emotional intelligence and job performance in railroad industry. The study uses two questionnaires, one for measuring emotional intelligence adopted from Salovey and Mayer (1989 [Salovey, P., & Mayer, J. D. (1989. Emotional intelligence. Imagination, Cognition and Personality, 9(3, 185-211.] and the other one for measuring job performance. The study selects 300 full time employees who work for railroad industry in city of Tehran, Iran, distributes two questionnaires among the employees and managed to collect all filled ones. Using Spearman correlation, the study has determined a positive and meaningful relationship between emotional intelligence and job performance (r = 0.796, Sig. = 0.000. In addition, there were positive and meaningful relationships between four components of emotional intelligence, namely consciousness (r = 0.642, Sig. = 0.000, self-regulation (r = 0.41, Sig. = 0.000, self-awareness ( r = 0.552, Sig. = 0.000 and social skills (r = 0.524, Sig. = 0.000.

  9. 77 FR 51107 - Union Pacific Railroad Company-Abandonment Exemption-in Pocahontas County, IA

    Science.gov (United States)

    2012-08-23

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Union Pacific Railroad Company--Abandonment Exemption--in Pocahontas County, IA Union Pacific Railroad Company (UP) has filed a verified notice of exemption under 49 CFR...

  10. 76 FR 1211 - Union Pacific Railroad Company-Abandonment Exemption-In Wright County, IA

    Science.gov (United States)

    2011-01-07

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Union Pacific Railroad Company--Abandonment Exemption--In Wright County, IA Union Pacific Railroad Company (UP) filed a verified notice of exemption under 49 CFR 1152 subpart...

  11. 77 FR 51614 - Union Pacific Railroad Company-Abandonment Exemption-in Polk County, IA

    Science.gov (United States)

    2012-08-24

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Union Pacific Railroad Company--Abandonment Exemption--in Polk County, IA Union Pacific Railroad Company (UP) has filed a verified notice of exemption under 49 CFR part...

  12. 23 CFR 646.210 - Classification of projects and railroad share of the cost.

    Science.gov (United States)

    2010-04-01

    ... ENGINEERING AND TRAFFIC OPERATIONS RAILROADS Railroad-Highway Projects § 646.210 Classification of projects...) Pursuant to 23 U.S.C. 130(b), and 49 CFR 1.48: (1) Projects for grade crossing improvements are deemed to...) shall be based on the costs for preliminary engineering, right-of-way and construction within the...

  13. 77 FR 65446 - Turtle Creek Industrial Railroad, Inc.-Acquisition and Operation Exemption-Consolidated Rail...

    Science.gov (United States)

    2012-10-26

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Turtle Creek Industrial Railroad, Inc.--Acquisition and Operation Exemption--Consolidated Rail Corporation Turtle Creek Industrial Railroad, Inc. (TCKR), a noncarrier and a wholly...

  14. 75 FR 35513 - Union Pacific Railroad Company-Abandonment Exemption-in Yakima County, Wash.

    Science.gov (United States)

    2010-06-22

    ... Surface Transportation Board Union Pacific Railroad Company-Abandonment Exemption-in Yakima County, Wash... milepost 58.75 near Grandview, in Yakima County, Wash.\\1\\ The line traverses United States Postal Service... to the Central Washington Railroad Company (CWRR). See Central Wash. R.R.-- Lease and...

  15. 77 FR 27857 - Kingman Terminal Railroad, LLC-Operation Exemption-Kingman Airport Authority, Inc.

    Science.gov (United States)

    2012-05-11

    ... Surface Transportation Board Kingman Terminal Railroad, LLC--Operation Exemption--Kingman Airport Authority, Inc. Kingman Terminal Railroad, LLC (KTRR), a noncarrier, has filed a verified notice of exemption under 49 CFR 1150.31 to operate over approximately 3 miles of track \\1\\ within the Kingman...

  16. 26 CFR 31.6011(a)-3A - Returns of the railroad unemployment repayment tax.

    Science.gov (United States)

    2010-04-01

    ... 26 Internal Revenue 15 2010-04-01 2010-04-01 false Returns of the railroad unemployment repayment... unemployment repayment tax. (a) Requirement—(1) Employers. Every rail employer (as defined in section 3323(a) and section 1 of the Railroad Unemployment Insurance Act) shall make a return of the tax imposed...

  17. 78 FR 50141 - Illinois Central Railroad Company-Trackage Rights Exemption-BNSF Railway Company

    Science.gov (United States)

    2013-08-16

    ... Surface Transportation Board Illinois Central Railroad Company--Trackage Rights Exemption-- BNSF Railway Company BNSF Railway Company (BNSF), pursuant to a written trackage rights agreement dated June 17, 2013, has agreed to grant overhead trackage rights to Illinois Central Railroad Company (IC), a wholly...

  18. 75 FR 3523 - Union Pacific Railroad Company-Temporary Trackage Rights Exemption-BNSF Railway Company

    Science.gov (United States)

    2010-01-21

    ... Surface Transportation Board Union Pacific Railroad Company--Temporary Trackage Rights Exemption--BNSF Railway Company Pursuant to a written trackage rights agreement dated December 22, 2009, BNSF Railway... Railroad Company (UP) over BNSF lines extending between BNSF milepost 10.2 at Tukwila, WA, and...

  19. 76 FR 31009 - BNSF Railway Company-Trackage Rights Exemption-Yellowstone Valley Railroad, Inc.

    Science.gov (United States)

    2011-05-27

    ... Surface Transportation Board BNSF Railway Company--Trackage Rights Exemption--Yellowstone Valley Railroad, Inc. Yellowstone Valley Railroad, Inc. (YVRR) has agreed to grant, pursuant to a prospective written trackage rights agreement,\\1\\ restricted local and overhead trackage rights to BNSF Railway Company...

  20. 75 FR 21146 - Union Pacific Railroad Company-Trackage Rights Exemption-BNSF Railway Company

    Science.gov (United States)

    2010-04-22

    ... Surface Transportation Board Union Pacific Railroad Company--Trackage Rights Exemption--BNSF Railway Company Pursuant to a written trackage rights agreement dated December 16, 2009, BNSF Railway Company (BNSF) has agreed to grant overhead trackage rights to Union Pacific Railroad Company (UP) over a...

  1. 75 FR 2592 - Pioneer Industrial Railway Co.-Trackage Rights Exemption-Central Illinois Railroad Company

    Science.gov (United States)

    2010-01-15

    ... Surface Transportation Board Pioneer Industrial Railway Co.--Trackage Rights Exemption-- Central Illinois Railroad Company Pursuant to a written trackage rights agreement, Central Illinois Railroad Company (CIRY) has agreed to grant non-exclusive local trackage rights to Pioneer Industrial Railway Co. (PIRY)...

  2. 78 FR 63564 - BNSF Railway Company-Trackage Rights Exemption-Union Pacific Railroad Company

    Science.gov (United States)

    2013-10-24

    ... Surface Transportation Board BNSF Railway Company--Trackage Rights Exemption--Union Pacific Railroad Company Pursuant to a written trackage rights agreement, Union Pacific Railroad Company (UP) has agreed to grant overhead trackage rights to BNSF Railway Company (BNSF) over the following UP rail lines: (1)...

  3. 76 FR 22746 - Wiregrass Central Railway, LLC-Acquisition and Operation Exemption-Wiregrass Central Railroad...

    Science.gov (United States)

    2011-04-22

    ... Surface Transportation Board Wiregrass Central Railway, LLC--Acquisition and Operation Exemption--Wiregrass Central Railroad Company, Inc. Wiregrass Central Railway, LLC (WCR), a noncarrier, has filed a verified notice of exemption under 49 CFR 1150.31 to acquire from Wiregrass Central Railroad Company,...

  4. 77 FR 67442 - Soo Line Railroad Company-Temporary Trackage Rights Exemption-BNSF Railway Company

    Science.gov (United States)

    2012-11-09

    ... Surface Transportation Board Soo Line Railroad Company--Temporary Trackage Rights Exemption-- BNSF Railway Company BNSF Railway Company (BNSF), pursuant to a written trackage rights agreement (Agreement), has agreed to grant temporary overhead trackage rights to Soo Line Railroad Company d/b/a Canadian...

  5. 75 FR 63540 - Norfolk Southern Railway Company-Trackage Rights Exemption-Illinois Central Railroad Company

    Science.gov (United States)

    2010-10-15

    ... Surface Transportation Board Norfolk Southern Railway Company--Trackage Rights Exemption-- Illinois Central Railroad Company Pursuant to a written trackage rights agreement dated August 17, 2010, Illinois Central Railroad Company (IC) has agreed to grant overhead trackage rights to Norfolk Southern...

  6. 75 FR 56161 - Stillwater Central Railroad, Inc.-Trackage Rights Exemption-BNSF Railway Company

    Science.gov (United States)

    2010-09-15

    ... Surface Transportation Board Stillwater Central Railroad, Inc.--Trackage Rights Exemption-- BNSF Railway... Railway Company (BNSF) granted approximately 5.5 miles of incidental overhead trackage rights to Stillwater Central Railroad, Inc. (SLWC), extending between: (1) Milepost 384.6 and milepost 390.0, on...

  7. 77 FR 60742 - BNSF Railway Company-Temporary Trackage Rights Exemption-Union Pacific Railroad Company

    Science.gov (United States)

    2012-10-04

    ... Surface Transportation Board BNSF Railway Company--Temporary Trackage Rights Exemption--Union Pacific Railroad Company Pursuant to a written trackage rights agreement dated August 10, 2012, Union Pacific Railroad Company (UP) has agreed to grant restricted temporary trackage rights to BNSF Railway...

  8. 19 CFR 123.6 - Train sheet for arriving railroad trains.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Train sheet for arriving railroad trains. 123.6 Section 123.6 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY CUSTOMS RELATIONS WITH CANADA AND MEXICO General Provisions § 123.6 Train sheet for arriving railroad trains. The conductor...

  9. 75 FR 73161 - Delta Southern Railroad, Inc.-Abandonment Exemption-In East Carroll Parish, LA

    Science.gov (United States)

    2010-11-29

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Delta Southern Railroad, Inc.--Abandonment Exemption--In East Carroll Parish, LA Delta Southern Railroad, Inc. (DSR) filed a verified notice of exemption under 49 CFR pt....

  10. 78 FR 20714 - Union Pacific Railroad Company-Abandonment Exemption-in Dunn County, WI.

    Science.gov (United States)

    2013-04-05

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Union Pacific Railroad Company--Abandonment Exemption--in Dunn County, WI. Union Pacific Railroad Company (UP) filed a verified notice of exemption under 49 CFR part 1152...

  11. Flight to Freedom: One Family and the Story of the Underground Railroad.

    Science.gov (United States)

    Horton, James Oliver

    2001-01-01

    Offers historical information on the underground railroad, a secret organization that attempted to move slaves from bondage to freedom. Focuses on William Still, one of the most effective organizers of the underground railroad, and the story of his family. Addresses the reunion between Still and his brother Peter. (CMK)

  12. 76 FR 13445 - Lycoming Valley Railroad Company-Operation Exemption-SEDA-COG Joint Rail Authority

    Science.gov (United States)

    2011-03-11

    ... Surface Transportation Board Lycoming Valley Railroad Company-Operation Exemption--SEDA--COG Joint Rail... or leased by SEDA-COG Joint Rail Authority (SEDA-COG). LVRR states that the line it proposes to operate is an extension of its existing line of railroad it operates for SEDA- COG and that it will...

  13. 76 FR 13446 - Juniata Valley Railroad Company-Operation Exemption-SEDA-COG Joint Rail Authority

    Science.gov (United States)

    2011-03-11

    ... Surface Transportation Board Juniata Valley Railroad Company-Operation Exemption-SEDA-COG Joint Rail... is owned or leased by SEDA-COG Joint Rail Authority (SEDA-COG). JVRR states that the line it proposes to operate is an extension of its existing line of railroad it operates for SEDA- COG and that...

  14. 75 FR 25313 - Stillwater Central Railroad, Inc.-Trackage Rights Exemption-Wichita, Tillman and Jackson Railway...

    Science.gov (United States)

    2010-05-07

    ... Surface Transportation Board Stillwater Central Railroad, Inc.--Trackage Rights Exemption-- Wichita, Tillman and Jackson Railway Company, Inc., and Hollis & Eastern Railroad Company Pursuant to a written trackage rights agreement (Trackage Agreement) dated January 22, 1992, Wichita, Tillman & Jackson...

  15. 26 CFR 31.6302(c)-2A - Use of Government depositaries in connection with the railroad unemployment repayment tax.

    Science.gov (United States)

    2010-04-01

    ... with the railroad unemployment repayment tax. 31.6302(c)-2A Section 31.6302(c)-2A Internal Revenue...) § 31.6302(c)-2A Use of Government depositaries in connection with the railroad unemployment repayment...,000,000, such employer shall (except as provided below) deposit his undeposited railroad...

  16. 76 FR 13272 - Columbia & Cowlitz Railway, LLC-Corporate Family Transaction Exemption-Patriot Woods Railroad, LLC

    Science.gov (United States)

    2011-03-10

    ... Surface Transportation Board Columbia & Cowlitz Railway, LLC--Corporate Family Transaction Exemption--Patriot Woods Railroad, LLC Columbia & Cowlitz Railway, LLC (CLC) and Patriot Woods Railroad, LLC (Woods... corporate family. CLC seeks to lease and operate all of Woods' lines of railroad consisting of...

  17. 78 FR 73585 - The Three Rivers Railway Company-Corporate Family Merger Exemption-Mahoning State Line Railroad...

    Science.gov (United States)

    2013-12-06

    ... Surface Transportation Board The Three Rivers Railway Company--Corporate Family Merger Exemption--Mahoning State Line Railroad Company The Three Rivers Railway Company (TRRC) and Mahoning State Line Railroad...)(3) for a corporate family transaction. According to applicants, TRRC is a Class III railroad and...

  18. 76 FR 37888 - Yellowstone Valley Railroad, L.L.C.-Discontinuance of Service Exemption-in Dawson and Richland...

    Science.gov (United States)

    2011-06-28

    ... Surface Transportation Board Yellowstone Valley Railroad, L.L.C.--Discontinuance of Service Exemption--in Dawson and Richland Counties, Mont. Yellowstone Valley Railroad, L.L.C. (YVRR) \\1\\ has filed a verified... Yellowstone Valley Railroad, Inc. See Watco Holdings, Watco Companies, and Watco Transp....

  19. 78 FR 13932 - Yellowstone Valley Railroad, L.L.C.-Discontinuance of Lease and Trackage Rights Operations...

    Science.gov (United States)

    2013-03-01

    ... Surface Transportation Board Yellowstone Valley Railroad, L.L.C.--Discontinuance of Lease and Trackage... County, ND On February 11, 2013, Yellowstone Valley Railroad, L.L.C. (YVRR) \\1\\ filed with the Surface... 59270. \\1\\ According to YVRR, its name was formerly Yellowstone Valley Railroad, Inc. See Watco...

  20. 高速铁路隧道列车风作用下接触网安全性分析%Analysis of catenary's safety under train wind action in high-speed railway tunnel

    Institute of Scientific and Technical Information of China (English)

    施成华; 杨伟超; 彭立敏; 王照伟; 雷明锋

    2012-01-01

    采用数值模拟方法,对高速列车在隧道内运行过程中所产生的列车风速度的变化过程进行分析,计算隧道内不同位置在列车运行过程中的最大风速和最大风压,进一步研究隧道内预留滑道槽型和螺栓锚固型接触网在列车反复冲击压力作用下的安全性.研究结果表明:隧道内不同断面的接触网设施只在列车车身运行至该断面的一段时间内才承受负向列车风(与列车运行方向相反);离列车表面越近的位置,列车风的速度越大;对于螺栓锚固型接触网悬挂件,在单线隧道350 km/h行车条件下,隧道衬砌混凝土中的最大拉应力已接近混凝土的疲劳抗拉强度,应采取适当的加强措施;对于滑道槽式接触网悬挂件,在列车风的反复作用下是安全的.%By using the numerical simulation method, the change process of wind speed when high-speed train running in tunnel was studied, the maximum wind speed and wind pressure at different positions in tunnel were calculated, and then the safety of slide-type and anchor-type catenary in tunnel under the repeated impact pressure caused by train running was studied. The calculated results show that at different cross-sections in tunnel, the negative train wind (opposite to train running direction) only occurs in a certain period when the whole train is through this section. The nearer the position is to the train surface, the greater the speed of the train wind. For the anchor-type catenary, the greatest tensile stress in the tunnel lining is close to the fatigue tensile strength of concrete at 350 km/h driving speed in single-track tunnel, and appropriate measures should be taken to strengthen it. For the slide-type catenary, it is safe under repeated action caused by train wind.

  1. Port wine landscape: railroads, phylloxera, and agricultural science.

    Science.gov (United States)

    Macedo, Marta

    2011-01-01

    It is easy to understand why regions that produce very fine goods such as port wine tend to conceal technological and scientific inputs and praise the uniqueness of the terroir. This paper suggests that, during the last decades of the nineteenth century, viticulture in the Douro region of Portugal was as much a product of soil, local farming traditions, and individual entrepreneurship as it was of modern state science and national politics for agricultural improvement. the unprecedented public projects of building a railroad and fighting phylloxera permanently changed the land of port wine. Moreover, those engineering practices of rationalization, simplification, and standardization that were inscribed on Douro's landscape proved essential for the Portuguese experience of modernization and nation-building. PMID:21563604

  2. Port wine landscape: railroads, phylloxera, and agricultural science.

    Science.gov (United States)

    Macedo, Marta

    2011-01-01

    It is easy to understand why regions that produce very fine goods such as port wine tend to conceal technological and scientific inputs and praise the uniqueness of the terroir. This paper suggests that, during the last decades of the nineteenth century, viticulture in the Douro region of Portugal was as much a product of soil, local farming traditions, and individual entrepreneurship as it was of modern state science and national politics for agricultural improvement. the unprecedented public projects of building a railroad and fighting phylloxera permanently changed the land of port wine. Moreover, those engineering practices of rationalization, simplification, and standardization that were inscribed on Douro's landscape proved essential for the Portuguese experience of modernization and nation-building.

  3. Simulation Analysis of Dynamic Performance of Contact between Pantograph and Catenary of High-speed Railway under ADAMS%基于ADAMS下高铁弓网耦合动态性能仿真分析

    Institute of Scientific and Technical Information of China (English)

    任安萍

    2012-01-01

    Modeled with three-dimensional geometric proe software, the contact between the pantograph and the catenary of high-speed railway is simulated under the ADAMS, then the dynamic performance is analyzed, which verifies that ADAMS software is useful to analyze it.%利用三维几何建模proe软件进行建模,并在ADAMS下对弓网耦合的动态性能进行仿真,并对仿真结果进行分析验证,同时也验证了采用ADAMS软件对弓网耦合动态分析具有一定的有效性,对于弓网关系在ADAMS下进一步研究具有一定意义.

  4. Reconsidering the Underground Railroad: Slavery and Racialization in the Making of the Canadian State

    OpenAIRE

    Abigail Bakan

    2008-01-01

    The Underground Railroad is commonly understood as a defining moment in the ideology of the Canadian state regarding the legacy of racism and anti-racism. This paper attempts to recast the narrative of the Underground Railroad through the lens of an anti-imperialist, anti-racist political economy, departing from the view of Canada’s anti-racist rescue of fugitive slaves from racist America. The Underground Railroad was in fact the product primarily of the struggle for self-emancipation of Ame...

  5. Calculation of longitudinal stiffness of mid-tower in multi-span suspension bridges based on catenary equation%主缆为悬链线的多塔悬索桥的中塔刚度计算

    Institute of Scientific and Technical Information of China (English)

    张学义; 谭红梅; 肖汝诚; 柴生波

    2014-01-01

    The main cable was treated as springs in considering its constraint on the tower .The for-mula of the longitudinal constraint stiffness of springs was derived by variational method based on cat-enary equation ,and a finite element model was established for verification .The results show that the tower stiffness formula based on catenary has higher accuracy ;the cable spring stiffness is mainly re-lated to the unit length weight of the bridge as well as the horizontal and vertical components of the main cable in the overhead of the mid-tower ,while the unstressed length of the main cable is deter-mined .%以悬链线方程为基础,将主缆对桥塔的约束等效为弹簧,通过变分方法推导了主缆对多塔悬索桥中塔纵向弹簧约束刚度的表达式,并建立有限元模型对公式进行验证。研究结果表明:基于悬链线的中塔刚度公式比已有文献具有更高的精度,在主缆无应力长度确定的情况下,主缆弹簧刚度主要与荷载集度、主缆在塔顶的水平及竖向分力有关。

  6. Field Plot Points for Allegheny Portage Railroad National Historic Site Vegetation Mapping Project

    Data.gov (United States)

    National Park Service, Department of the Interior — Location of vegetation sampling plots used to collect data for vegetation classification and mapping at Allegheny Portage Railroad National Historic Site. In this...

  7. Railroad Lines, Published in 2011, 1:1200 (1in=100ft) scale, Brown County, WI.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from Orthoimagery information as of 2011. Data by this publisher are...

  8. Spatial Vegetation Data for Allegheny Portage Railroad National Historic Site Vegetation Mapping Project

    Data.gov (United States)

    National Park Service, Department of the Interior — Vegetation map of Allegheny Portage Railroad National Historic Site provides local park-specific names for vegetation types, as well as crosswalks to the National...

  9. Railroad Lines, Published in 2008, 1:2400 (1in=200ft) scale, Eau Claire County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Hardcopy Maps information as of 2008. Data by this publisher...

  10. Railroad Lines, Published in 1992, 1:1200 (1in=100ft) scale, Walker County Government.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from Orthoimagery information as of 1992. Data by this publisher are...

  11. 20 CFR 404.1413 - When will we certify payment to the Railroad Retirement Board (RRB)?

    Science.gov (United States)

    2010-04-01

    ... OLD-AGE, SURVIVORS AND DISABILITY INSURANCE (1950- ) Interrelationship of Old-Age, Survivors and Disability Insurance Program With the Railroad Retirement Program § 404.1413 When will we certify payment...

  12. Color Infrared Orthorectified Photomosaic for Allegheny Portage Railroad National Historic Site Vegetation Mapping Project

    Data.gov (United States)

    National Park Service, Department of the Interior — Orthorectified color infrared ERDAS IMAGINE image of Allegheny Portage Railroad NHS. Two separate photomosaics (final_alpo_a.img and final_alpo_b.img) were produced...

  13. 75 FR 33379 - Railroad Cost Recovery Procedures-Productivity Adjustment; Quarterly Rail Cost Adjustment Factor

    Science.gov (United States)

    2010-06-11

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Railroad Cost Recovery Procedures--Productivity Adjustment; Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board. ] ACTION: Notice and request for...

  14. Railroad Lines, Published in 2006, 1:1200 (1in=100ft) scale, Washoe County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from Orthoimagery information as of 2006. Data by this publisher are...

  15. Railroad Lines, Published in 2006, 1:4800 (1in=400ft) scale, Sauk County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:4800 (1in=400ft) scale, was produced all or in part from Published Reports/Deeds information as of 2006. Data by this...

  16. 75 FR 61835 - Jackson & Lansing Railroad Company-Trackage Rights Exemption-Norfolk Southern Railway Company

    Science.gov (United States)

    2010-10-06

    ... Surface Transportation Board Jackson & Lansing Railroad Company--Trackage Rights Exemption-- Norfolk Southern Railway Company Pursuant to a written Assignment of Trackage Rights and Other Joint Facility Agreements (Trackage Agreement) dated September 16, 2010, Norfolk Southern Railway Company (NSR) has...

  17. USGS Small-scale Dataset - Railroad and Bus Passenger Stations of the United States 201207 Shapefile

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This map layer shows Amtrak intercity railroad and bus passenger terminals in the United States. There are no Amtrak stations in Alaska or Hawaii. The data are a...

  18. Railroad Lines, Published in unknown, 1:600 (1in=50ft) scale, Stokes County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:600 (1in=50ft) scale, was produced all or in part from Published Reports/Deeds information as of unknown. Data by this...

  19. Railroad Lines, Published in 2005, Smaller than 1:100000 scale, Garrett County Planning & Land Development.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at Smaller than 1:100000 scale, was produced all or in part from Orthoimagery information as of 2005. Data by this publisher...

  20. 76 FR 50327 - Arkansas Shortline Railroads, Inc.-Continuance in Control Exemption-North Louisiana & Arkansas...

    Science.gov (United States)

    2011-08-12

    ... Railroad--Abandonment Exemption--in Desha and Chicot Counties, Ark., AB 384 (Sub-No. 3X) (STB served Mar... Village, in Desha and Chicot Counties, Ark., subject to environmental and standard employee...

  1. THE EXPERIMENT OF THE COMPLEX INSPECTION OF THE RAILROAD BRIDGE PIER

    Directory of Open Access Journals (Sweden)

    B. M. Usachenko

    2010-03-01

    Full Text Available The procedure and results of a visual inspection and vibrosonic diagnostics of the railroad bridge pier are described. The spatial model of the pier with an arrangement of large cracks is presented.

  2. Wireless Power Transfer for High-precision Position Detection of Railroad Vehicles

    CERN Document Server

    Ryu, Hyun-Gyu

    2015-01-01

    Detection of vehicle position is critical for successful operation of intelligent transportation system. In case of railroad transportation systems, position information of railroad vehicles can be detected by GPS, track circuits, and so on. In this paper, position detection based on tags onto sleepers of the track is investigated. Position information stored in the tags is read by a reader placed at the bottom of running railroad vehicle. Due to limited capacity of battery or its alternative in the tags, power required for transmission of position information to the reader is harvested by the tags from the power wirelessly transferred from the reader. Basic mechanism in wireless power transfer is magnetic induction and power transfer efficiency according to the relative location of the reader to a tag is discussed with simulation results. Since power transfer efficiency is significantly affected by the ferromagnetic material (steel) at the bottom of the railroad vehicle and the track, magnetic beam shaping b...

  3. Railroad Lines, Published in 1995, 1:1200 (1in=100ft) scale, Greenwood County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from Orthoimagery information as of 1995. Data by this publisher are...

  4. Railroad Lines, Published in 2007, 1:2400 (1in=200ft) scale, Polk County, Wisconsin.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Orthoimagery information as of 2007. Data by this publisher are...

  5. USGS Small-scale Dataset - Global Map: Railroad Stations of the United States 201403 Shapefile

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This map layer includes Global Map data showing Amtrak intercity railroad terminals in the United States. The data are a modified version of the National Atlas of...

  6. Railroad and Bus Passenger Stations of the United States - Direct Download

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This map layer shows Amtrak intercity railroad and bus passenger terminals in the United States. There are no Amtrak stations in Alaska or Hawaii. The data are a...

  7. Energy study of railroad freight transportation. Volume 3. Regulation and tariff

    Energy Technology Data Exchange (ETDEWEB)

    None

    1979-08-01

    Volume 1 described the history of the railroad industry and pointed out that the number of separate companies, their monopoly power, and their trade and labor practices invited regulation by outsiders from the early days. Even though new regulations have been added over the years, few have been removed. Tariffs have been modified to fit a number of needs, not all of them economic. The effects of government regulation on the energy efficiency of railroad operations are examined. The development of railroad regulation is examined and the governmental legislation, policies, and procedures that make up the regulatory environment within which the railroads must operate are briefly described. The relationship among regulations, energy usage, and costs in three specific areas of regulation: long-haul rates, empty car distribution, and rates on low-density rail traffic are examined.

  8. The impact of the railroad on American society: a communication perspective of technology

    Directory of Open Access Journals (Sweden)

    Matusitz, Jonathan

    2009-10-01

    Full Text Available This manuscript examines the railroad system as a combination of humans and machines that form a symbiosis, and explains how the railroad exerted a huge effect on American life when it made irrelevant the organic – following nature – time system that existed in cities and countries where clocks were set according to weather conditions. The author makes the point that the railroad is an organ of society, that it will evolve to serve the functions we demand, that it has molded and altered – but never replaced – contact between humans, and that it will continue to enhance and facilitate it. This manuscript analyzes the social, cross-cultural, psychological, and financial impact of the railroad on American society in the past two hundred years. The measure of progress in the United States is tantamount to the mass of things that had to be sacrificed to it.

  9. INEQUALITIES RESEARCH OF THE TRACK AT THE RAILROAD CROSSINGS

    Directory of Open Access Journals (Sweden)

    M. B. Kurhan

    2015-08-01

    Full Text Available Purpose. The intersection of highways and railways in one level – railway crossing, is a zone of increased danger for rail and road transport. Nearly half of all crossings are available on the main directions of passenger transportation. From this comes the problem of maintenance and service locations of intersection roads and railways. The purpose of this work is to evaluate the processes of emergence and development of inequalities in the area of railroad crossings and identify the factors that cause them. Methodology. The presence of derogation from the plan and profile within the railway crossing and approaches to it reduces evenness of riding and passenger comfort. Today, there are various possibilities for shooting natural geometry of a railway track. For research on a large number of areas during long service life, the tape of a track measuring car remains the most convenient. However, this tool is directed to assess the state of the railway line and does not determine the exact geometrical position. When trying to determine valid outlines of the track inequalities on track measuring tape, some difficulties arise. Findings. Performed statistical analysis showed a steady trend of growth of inequalities in the area of the railway crossings. Generally, the level of inequalities in the vertical plane increases in1.3−3.2 times and in 1.2−2.0 times in the horizontal plane (compared with areas that are outside crossing. During the deflection lines of action in the area of railroad crossing concrete slabs work as ribs that limit deflections of rail-tie grating. When placing the wheels of the bogie before (or after and within crossing the calculated modulus of elasticity under the rail base, brought to the point of wheels contact can vary up to 3 times. Originality. Issues of the assessment and investigation of inequalities on track started to be developed. The resulting statistics on inequalities accumulation gauge in the zone of crossing

  10. Computer-Based Decision Support for Railroad Transportation Systems: an Investment Case Study

    Directory of Open Access Journals (Sweden)

    Luminita DUTA

    2009-01-01

    Full Text Available In the last decade the development of the economical and social life increased the complexity of transportation systems. In this context, the role of Decision Support Systems (DSS became more and more important. The paper presents the characteristics, necessity, and usage of DSS in transportation and describes a practical application in the railroad field. To compute the optimal transportation capacity and flow on a certain railroad, specialized decision-support software which is available on the market was used.

  11. Mesotheliomas following exposure to asbestos used in railroads: 130 Italian cases.

    Science.gov (United States)

    Maltoni, C; Pinto, C; Carnuccio, R; Valenti, D; Lodi, P; Amaducci, E

    1995-01-01

    The available knowledge on the oncogenic risks of asbestos, the data on the uses of asbestos in railroads, with particular regard to the Italian State Railroads (Ferrovie dello Stato = FS), and the groups at risk due to the exposure to asbestos used in railroads were briefly reviewed. The available data on the pathological effects of such exposure, and particularly on the onset of mesotheliomas among machinists and other railroad workers, were also summarized. One hundred and thirty cases of mesothelioma (122 pleural, 1 pericardial, 6 peritoneal and 1 pleuro-peritoneal), related to the exposure to asbestos used in railroads, observed in various Italian regions, were reported. Fifty-three of these cases (among which 49 reported in the Emilia Romagna Region) were submitted to a detailed study at the Bologna Institute of Oncology. Seventy-seven cases of mesothelioma occurred among occupationally exposed FS workers, in particular machinists; 45 cases occurred among rolling-stock machinists and workers engaged in the repair and demolition of the rails of workshops not belonging to the FS; 3 cases occurred among travelling workers of rolling-stock, not belonging to the FS; and 5 cases were found in family members (1 daughter, 3 wives and 1 sister) of railroad workers. This series of cases, together with similar data from the literature, proves the existence of an actual health risk due to asbestos used in railroads, and indicates its gravity. On the basis of the available data, the following steps are considered necessary: the promotion of systematic epidemiological investigations, the adoption of preventive measures, the performance of medical oncological surveillance, and the automatic compensation for tumours following the exposure to the asbestos used in railroads.

  12. Political-Legal Institutions and the Railroad Financing Mix, 1885-1929

    OpenAIRE

    Daniel A. Schiffman

    2001-01-01

    During the 19th Century, U.S. railroads relied primarily on debt issues to finance their growth. This policy contributed to major financial crises, beginning in 1857, 1873 and 1893. Nevertheless, railroads failed to reduce their leverage over 1900-1929, and suffered severe consequences during the Great Depression. In order to explain this puzzle, I focus on several key political-legal developments that originated around 1885. These are: (a) Changes in the bankruptcy process; (b) the emergence...

  13. Railroad electrification in America's future: an assessment of prospects and impacts. Final report

    Energy Technology Data Exchange (ETDEWEB)

    White, R.K.; Yabroff, I.W.; Dickson, E.M.; Zink, R.A.; Gray, M.E.; Moon, A.E.

    1980-01-01

    Such considerations as the level of traffic, the relative financial health of individual railroads, the capacity of the associated supply and engineering/construction industries, and the logical connecting points at classifying yards, as well as the national interest value of creating a continuous system, continental in scope, were used to construct a scenario for railroad electrification that closely approximates how an electrification program might be implemented. For the economic reasons cited, much of the US railroad system would remain conventionally powered. This scenario provides for an electrified network involving 14 mainlines operated by 10 companies that could transport much of the nation's rail-borne freight. Five years of planning and engineering work would be required for each link before construction could begin. With 1000 miles or less of electrified route per year, 14 years would be needed to construct the 9000-mile network of our scenario. (The scenario constructed runs from 1980 to 1998.) The analysis was aided with the construction of the SRI Railroad Industry Model. Basically a model of industry operations and finances, the model produces income statements and balance sheets at yearly intervals. Railroad energy costs, railroad freight levels, maintenance costs, purchases and leases of rooling stock, electrification facility investments, future inflation, rate setting practices, annual depreciation, taxes, and profits were calculated.

  14. THE ROLE OF RAILROAD IN THE DEVELOPMENT OF THE AMERICAN WEST--Railroad, Migration and Urban Growth

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    This paper explores the role of geographical expansion of railroads, one of the most important Fransportation vehicles, in the history of American west development, analyses its implication on the unprecedentedmigration movement and the resulted urbanization in the west and concludes with the fact that the appropriate interference by the governmnet, especially in the early period, is vital to regional development practice, because of market failure at the initial stage, infrastructure construction conducted by the government always plays as the first impetus to any regional development process. Only through this bridge, can some physical factors, such as population, be attracted to feed the backward area. As a result, cities grow fast and the region develops well. The experience can be shared by all countries. Besides reviewing the history of west development in America, focusing on the relationship between railroadsexpansion and urban growth, which was realized through population migration. A comparison on the particular pattern of regional development between U. S and China is made as well at the end. It is noted that despite of the common first impetus, government subsidies and the common final result, urbanization, the path for the America is bottom-up, whereas that for China is topdown, that is to say, development should originate from big cities, then to towns, and finally radiate into rural areas.

  15. Ground reaction forces during human locomotion on railroad ballast.

    Science.gov (United States)

    Wade, Chip; Redfern, Mark S

    2007-11-01

    Locomotion over ballast surfaces provides a unique situation for investigating the biomechanics of gait. Although much research has focused on level and sloped walking on a smooth, firm surface in order to understand the common kinematic and kinetic variables associated with human locomotion, the literature currently provides few if any discussions regarding the dynamics of locomotion on surfaces that are either rocky or uneven. The purpose of this study was to investigate a method for using force plates to measure the ground reaction forces (GRFs) during gait on ballast. Ballast is a construction aggregate of unsymmetrical rock used in industry for the purpose of forming track bed on which railway ties are laid or in yards where railroad cars are stored. It is used to facilitate the drainage of water and to create even running surfaces. To construct the experimental ballast surfaces, 31.75 mm (1 1/4 in.) marble ballast at depths of approximately 63.5 mm (2.5 in.) or 101.6 mm (4 in.) were spread over a carpeted vinyl tile walkway specially designed for gait studies. GRF magnitudes and time histories from a force plate were collected under normal smooth surface and under both ballast surface conditions for five subjects. GRF magnitudes and time histories during smooth surface walking were similar to GRF magnitudes and time histories from the two ballast surface conditions. The data presented here demonstrate the feasibility of using a force plate system to expand the scope of biomechanical analyses of locomotion on ballast surfaces. PMID:18089931

  16. Power harvesting for railroad track safety enhancement using vertical track displacement

    Science.gov (United States)

    Nelson, Carl A.; Platt, Stephen R.; Hansen, Sean E.; Fateh, Mahmood

    2009-03-01

    A significant portion of railroad infrastructure exists in areas that are relatively remote. Railroad crossings in these areas are typically only marked with reflective signage and do not have warning light systems or crossbars due to the cost of electrical infrastructure. Distributed sensor networks used for railroad track health monitoring applications would be useful in these areas, but the same limitation regarding electrical infrastructure exists. This motivates the search for a long-term, low-maintenance power supply solution for remote railroad deployment. This paper describes the development of a mechanical device for harvesting mechanical power from passing railcar traffic that can be used to supply electrical power to warning light systems at crossings and to remote networks of sensors via rechargeable batteries. The device is mounted to and spans two rail ties such that it directly harnesses the vertical displacement of the rail and attached ties and translates the linear motion into rotational motion. The rotational motion is amplified and mechanically rectified to rotate a PMDC generator that charges a system of batteries. A prototype was built and tested in a laboratory setting for verifying functionality of the design. Results indicate power production capabilities on the order of 10 W per device in its current form. This is sufficient for illuminating high-efficiency LED lights at a railroad crossing or for powering track-health sensor networks.

  17. The Trade-Off between Road and Railroad Freight Transport – Cost Benefit Analysis for Slovenia

    Directory of Open Access Journals (Sweden)

    Jure Erjavec

    2014-03-01

    Full Text Available The choice of transportation mode for freight transport has a profound effect on logistics companies, infrastructure providers and society as a whole. The efficiency of freight transport is important because it has a profound effect on several economic and environmental factors. The paper analyses the costs difference between railroad and road freight transport. The stakeholder analysis is used to enable the identification of the interests of various groups. The government is identified as the focal stakeholder. The governmental decision support model that focuses on the Slovenian case of road and railway freight transport is proposed. The proposed model can serve the government with its decision-making process when adopting policies that concern road and railroad transport such as subsidies or increased road tolls in order to promote railroad transport.

  18. INTERLINE, a railroad routing model: program description and user's manual

    Energy Technology Data Exchange (ETDEWEB)

    Peterson, B.E.

    1985-11-01

    INTERLINE is an interactive computer program that finds likely routes for shipments over the US railroad system. It is based on a shortest path algorithm modified both to reflect the nature of railroad company operations and to accommodate computer resource limitations in dealing with a large transportation network. The first section of the report discusses the nature of railroad operations and routing practices in the United States, including the tendency to concentrate traffic on a limited number of mainlines, the competition for traffic by different companies operating in the same corridors, and the tendency of originating carriers to retain traffic on their systems before transferring it to terminating carriers. The theoretical foundation and operation of shortest path algorithms are described, as well as the techniques used to simulate actual operating practices within this framework. The second section is a user's guide that describes the program operation and data structures, program features, and user access. 11 refs., 11 figs.

  19. Mesotheliomas following exposure to asbestos used in railroads: the Italian cases.

    Science.gov (United States)

    Maltoni, C; Pinto, C; Mobiglia, A

    1991-01-01

    The available knowledge on the oncogenic risks of asbestos, the data on the uses of asbestos in railroads, with particular regard to the Italian State Railroads (Ferrovie dello Stato = FS), and the groups at risk due to the exposure to asbestos used in railroads were briefly reviewed. The available data on the pathological effects of such exposure, and in particular on the onset of mesotheliomas among machinists and other railroad workers, were also summarized. Eighty-five cases of mesothelioma (80 pleural, 4 peritoneal, and 1 pericardial), related to the exposure to asbestos used in railroads, observed in various Italian regions, were then reported. Twenty-eight of these cases (among which 27 reported in the Emilia-Romagna Region) were submitted to a detailed study at the Bologna Institute of Oncology. Fifty cases of mesothelioma occurred among FS workers, in particular machinists; 30 cases occurred among machinists of rolling-stock workshops not belonging to the FS; 3 cases occurred among travelling workers of rolling-stock not belonging to the FS; and 2 cases were found in family members (a daughter and a wife) of FS workers. This series of cases, together with similar data from the literature, proves the existence of an actually health risk due to asbestos used in railroads, and indicates its gravity. On the basis of the available data, the following steps are considered necessary: the adoption of preventive measures, the performance of medical oncological surveillance, the promotion of systematic epidemiological investigations, and, finally, more emphasis on basic research, aimed at generating information on the biological events taking place during the incubation period of the tumors, to be used for reducing the effect of exposure, and therefore for contrasting the onset of the disease in those who, having been exposed, although healthy, are potentially at high risk.

  20. Attachments for fire modeling for Building 221-T, T Plant canyon deck and railroad tunnel

    Energy Technology Data Exchange (ETDEWEB)

    Oar, D.L. [Westinghouse Hanford Co., Richland, WA (United States)

    1995-01-23

    The purpose of this attachment is to provide historical information and documentation for Document No. WHC-SD-CP-ANAL-008 Rev 0, ``Fire Modeling for Building 221-T--T Plant Canyon Deck and Railroad Tunnel``, dated September 29, 1994. This data compilation contains the following: Resumes of the Technical Director, Senior Engineer and Junior Engineer; Review and Comment Record; Software Files; CFAST Input and Output Files; Calculation Control Sheets; and Estimating Sprinkler Actuation Time in the Canyon and Railroad Tunnel. The T Plant was originally a fuel reprocessing facility. It was modified later to decontaminate and repair PuRex process equipment.

  1. THE TRANS-MISSOURI CASE: DOES THE SHERMAN ACT APPLY TO THE RAILROADS?

    Directory of Open Access Journals (Sweden)

    Michael Landry

    2003-01-01

    Full Text Available In 1887, in answer to railroad abuses of monopoly power, Congress passed the Interstate Commerce Act, which created the Interstate Commerce Commission (ICC. In the next decade the Commission’s powers were considerably diminished by a series of Supreme Court decisions in cases in which the railroads appealed ICC rulings. In only one case during this period, the United States v. Trans-Missouri Freight Association, did the Court uphold an ICC decision. This case was primarily about collaborative ratemaking in rate bureaus but covered several larger issues, especially the possibly conflicting jurisdictions of the Sherman Act and the Interstate Commerce Act.

  2. 49 CFR Appendix C to Part 228 - Guidelines for Clean, Safe, and Sanitary Railroad Provided Camp Cars

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Guidelines for Clean, Safe, and Sanitary Railroad... EMPLOYEES Pt. 228, App. C Appendix C to Part 228—Guidelines for Clean, Safe, and Sanitary Railroad Provided..., medical services, dressing, showering, toilet use, washing, and eating. (g) Potable water means water...

  3. 78 FR 63563 - Turtle Creek Industrial Railroad, Inc.-Discontinuance of Service Exemption-in Westmoreland County...

    Science.gov (United States)

    2013-10-24

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Turtle Creek Industrial Railroad, Inc.--Discontinuance of Service Exemption--in Westmoreland County, PA Turtle Creek Industrial Railroad, Inc. (TCIR), has filed a verified...

  4. 20 CFR 364.3 - Publication of missing children information in the Railroad Retirement Board's in-house...

    Science.gov (United States)

    2010-04-01

    ... in the Railroad Retirement Board's in-house publications. 364.3 Section 364.3 Employees' Benefits... the Railroad Retirement Board's in-house publications. (a) All-A-Board. Information about missing... publication. (b) Other in-house publications. The Board may publish missing children information in other...

  5. 26 CFR 31.6071(a)-1A - Time for filing returns with respect to the railroad unemployment repayment tax.

    Science.gov (United States)

    2010-04-01

    ... 26 Internal Revenue 15 2010-04-01 2010-04-01 false Time for filing returns with respect to the railroad unemployment repayment tax. 31.6071(a)-1A Section 31.6071(a)-1A Internal Revenue INTERNAL REVENUE... filing returns with respect to the railroad unemployment repayment tax. (a) In general. Each return...

  6. 76 FR 12224 - Autauga Northern Railroad, L.L.C.-Lease and Operation Exemption-Norfolk Southern Railway Company

    Science.gov (United States)

    2011-03-04

    ... Surface Transportation Board Autauga Northern Railroad, L.L.C.--Lease and Operation Exemption--Norfolk Southern Railway Company Autauga Northern Railroad, L.L.C. (ANRR), a noncarrier, has filed a verified notice of exemption under 49 CFR 1150.31 to acquire by lease from Norfolk Southern Railway Company...

  7. 75 FR 80894 - Wichita, Tillman & Jackson Railway Company-Lease Renewal Exemption-Union Pacific Railroad Company

    Science.gov (United States)

    2010-12-23

    ... Surface Transportation Board Wichita, Tillman & Jackson Railway Company--Lease Renewal Exemption--Union Pacific Railroad Company Wichita, Tillman & Jackson Railway Company (WTJR) has filed a verified notice of... segments: \\1\\ (1) The Western Branch, owned by Union Pacific Railroad Company (UP),\\2\\ extending...

  8. 76 FR 22745 - Three Notch Railway, LLC-Acquisition and Operation Exemption-Three Notch Railroad Co., Inc.

    Science.gov (United States)

    2011-04-22

    ... Surface Transportation Board Three Notch Railway, LLC--Acquisition and Operation Exemption-- Three Notch Railroad Co., Inc. Three Notch Railway, LLC (TNRW), a noncarrier, has filed a verified notice of exemption under 49 CFR 1150.31 to acquire from Three Notch Railroad Co., Inc. (TNHR) and to operate...

  9. 76 FR 75602 - Hilton & Albany Railroad, Inc.-Lease and Operation Exemption-Norfolk Southern Railway Company

    Science.gov (United States)

    2011-12-02

    ... TRANSPORTATION Surface Transportation Board Hilton & Albany Railroad, Inc.--Lease and Operation Exemption-- Norfolk Southern Railway Company Hilton & Albany Railroad, Inc. (HAL), a noncarrier, has filed a verified notice of exemption under 49 CFR 1150.31 to lease from Norfolk Southern Railway Company (NSR) and...

  10. 76 FR 22746 - Conecuh Valley Railway, LLC-Acquisition and Operation Exemption-Conecuh Valley Railroad Co., Inc.

    Science.gov (United States)

    2011-04-22

    ... Surface Transportation Board Conecuh Valley Railway, LLC--Acquisition and Operation Exemption--Conecuh Valley Railroad Co., Inc. Conecuh Valley Railway, LLC (CVR), a noncarrier, has filed a verified notice of exemption under 49 CFR 1150.31 to acquire from Conecuh Valley Railroad Co., Inc. (COEH), and to...

  11. 75 FR 7537 - Elkhart & Western Railroad Co.-Lease and Operation Exemption-Norfolk Southern Railway Company

    Science.gov (United States)

    2010-02-19

    ... Surface Transportation Board Elkhart & Western Railroad Co.--Lease and Operation Exemption-- Norfolk Southern Railway Company Elkhart & Western Railroad Co. (EWR), a Class III rail carrier,\\1\\ has filed a... (Agreement) \\2\\ with Norfolk Southern Railway Company (NSR), approximately 23.0 miles of NSR's rail...

  12. 75 FR 61817 - Jackson & Lansing Railroad Company-Lease and Operation Exemption-Norfolk Southern Railway Company

    Science.gov (United States)

    2010-10-06

    ... Surface Transportation Board Jackson & Lansing Railroad Company--Lease and Operation Exemption--Norfolk Southern Railway Company Under 49 CFR 1011.7(b)(10), the Director of the Office of Proceedings (Director... & Lansing Railroad Company (JAIL), a noncarrier, has filed a verified notice of exemption under 49 CFR...

  13. 77 FR 3840 - Iowa Interstate Railroad, Ltd.-Lease Exemption-Line of Cedar Rapids and Iowa City Railway Company

    Science.gov (United States)

    2012-01-25

    ... Surface Transportation Board Iowa Interstate Railroad, Ltd.--Lease Exemption--Line of Cedar Rapids and Iowa City Railway Company AGENCY: Surface Transportation Board. ACTION: Notice of Exemption. SUMMARY.... 10902 for Iowa Interstate Railroad, Ltd. (IAIS), a Class II rail carrier, to lease and operate 8.4...

  14. 75 FR 32839 - Norfolk Southern Railway Company-Trackage Rights Exemption-The West Tennessee Railroad, LLC

    Science.gov (United States)

    2010-06-09

    ... Surface Transportation Board Norfolk Southern Railway Company--Trackage Rights Exemption--The West Tennessee Railroad, LLC Pursuant to a written trackage rights agreement, The West Tennessee Railroad, LLC (WTNN) has agreed to grant overhead trackage rights to Norfolk Southern Railway Company (NSR) \\1\\...

  15. 75 FR 74768 - Madison Terminal Railway, LLC-Lease and Operation Exemption-Line of Railroad in Dane County, WI

    Science.gov (United States)

    2010-12-01

    ... Surface Transportation Board Madison Terminal Railway, LLC--Lease and Operation Exemption-- Line of Railroad in Dane County, WI Madison Terminal Railway, LLC (MTR), a noncarrier, has filed a verified notice... Pacific Railroad Company's (UP) Cottage Grove Industrial Lead at milepost 78.02 in Madison, WI, and...

  16. 78 FR 9450 - Grand Trunk Western Railroad Company-Acquisition of Operating Easement-CSX Transportation, Inc.

    Science.gov (United States)

    2013-02-08

    .... 11323-25 for Grand Trunk Western Railroad Company (GTW), an indirect, wholly owned subsidiary of... Line), subject to employee protective conditions. The Leewood-Aulon Line is currently owned by CSXT. Illinois Central Railroad Company, a GTW affiliate, operates over it via trackage rights. Along with...

  17. 77 FR 30588 - R.J. Corman Railroad Company/Pennsylvania Lines Inc.-Construction and Operation Exemption-In...

    Science.gov (United States)

    2012-05-23

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board R.J. Corman Railroad Company/Pennsylvania Lines Inc.-- Construction and... prior approval requirements of 49 U.S.C. 10901 for R.J. Corman Railroad Company/Pennsylvania Lines...

  18. 75 FR 75205 - R.J. Corman Railroad Company/Central Kentucky Lines, LLC-Trackage Rights Exemption-CSX...

    Science.gov (United States)

    2010-12-02

    ... Surface Transportation Board R.J. Corman Railroad Company/Central Kentucky Lines, LLC-- Trackage Rights...,\\1\\ CSX Transportation, Inc. (CSXT) has agreed to grant limited overhead trackage rights to R.J... original notices, R.J. Corman Railroad Company/Central Kentucky Lines, LLC--Acquisition and...

  19. 9 CFR 325.17 - Loading or unloading products in sealed railroad cars, trucks, etc., en route prohibited; exception.

    Science.gov (United States)

    2010-01-01

    ... sealed railroad cars, trucks, etc., en route prohibited; exception. 325.17 Section 325.17 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE AGENCY ORGANIZATION AND... TRANSPORTATION § 325.17 Loading or unloading products in sealed railroad cars, trucks, etc., en route...

  20. 78 FR 17752 - Tongue River Railroad Company, Inc.-Rail Construction and Operation-In Custer, Powder River and...

    Science.gov (United States)

    2013-03-22

    ... Most Asked Questions Concerning CEQ's National Environmental Policy Act Regulations, 46 FR 18026 (1981... Surface Transportation Board Tongue River Railroad Company, Inc.--Rail Construction and Operation--In... Statement. SUMMARY: On October 16, 2012, Tongue River Railroad Company, Inc. (TRRC) filed a...

  1. 77 FR 64592 - Tongue River Railroad Company, Inc.-Rail Construction and Operation-in Custer, Powder River and...

    Science.gov (United States)

    2012-10-22

    ... TRANSPORTATION Surface Transportation Board Tongue River Railroad Company, Inc.--Rail Construction and Operation... on Draft Scope. SUMMARY: On October 16, 2012, Tongue River Railroad Company, Inc. (TRRC) filed a... Miles City, Montana, and two termini located near Ashland, Montana, a proceeding known as Tongue River...

  2. 76 FR 13446 - Nittany Bald and Eagle Railroad Company-Operation Exemption-SEDA-COG Joint Rail Authority

    Science.gov (United States)

    2011-03-11

    ... Surface Transportation Board Nittany Bald and Eagle Railroad Company-Operation Exemption-SEDA- COG Joint... is owned or leased by SEDA-COG Joint Rail Authority (SEDA-COG). N&BE states that the line it proposes to operate is an extension of its existing line of railroad it operates for SEDA- COG and that...

  3. 75 FR 5638 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System...

    Science.gov (United States)

    2010-02-03

    ... discontinuance and removal of the Automatic Block Signal System (ABS) on the entire railroad line between, but... the Federal Register published on April 11, 2000 (65 FR 19477) or at http://www.dot.gov/privacy.html... Railroad Signal System or Relief From the Requirements of Title 49 Code of Federal Regulations Part...

  4. 78 FR 77786 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System

    Science.gov (United States)

    2013-12-24

    ... (ABS) system on Track Number 2; the installation of a traffic control system (TCS) on Track Number 2... Register published on April 11, 2000 (65 FR 19477). Robert C. Lauby, Associate Administrator for Railroad... Railroad Signal System In accordance with Part 235 of Title 49 Code of Federal Regulations and 49...

  5. Analysis and Calculation on the Slide Plate's Temperature of the Pantograph and Catenary System under Current-receiving Condition%弓网系统受流摩擦下滑板温度分析与计算

    Institute of Scientific and Technical Information of China (English)

    陈忠华; 康立乾; 李本君; 石英龙; 王铁军

    2012-01-01

    The temperature of the slide plate of the pantograph and catenary system is a key factor which affects the wear rate of the slide plate. This article has established the mathematical model of temperature field of the slide plate based on the heat transfer principle and finite element methods with boundary conditions. Through the finite element analysis software ANSYS modeling and calculating, the influence of normal load, velocity and current variation on the slide plate conductive spots' temperature have been obtained. The validity of the ANSYS modeling has been testified by comparing the simulation and experimental data.%弓网系统受流摩擦下滑板温度是影响其磨耗率的关键因素.笔者根据传热学原理和有限元方法,建立了滑板温度场的计算模型,给出了边界条件,并运用ANSYS建模和计算,得出载荷、速度、电流变化对滑板导电斑点温度的影响,并通过与实验数据对比证明了仿真模型的正确性.

  6. 76 FR 4276 - Hazardous Materials: Improving the Safety of Railroad Transportation of Hazardous Materials

    Science.gov (United States)

    2011-01-25

    ... actions and repairs. See 60 FR 65,492 and 65,495 (December 19, 1995); 61 FR 28,666 and 28,669 (June 5, 1996); and 65 FR 50,450 and 50,455 (August 18, 2000). The number of movement approvals issued by FRA... Federal Railroad Administration 49 CFR Part 174 Hazardous Materials: Improving the Safety of...

  7. 76 FR 6163 - Public Availability of Railroad Retirement Board FY 2010 Service Contract Inventory

    Science.gov (United States)

    2011-02-03

    ... actions over $25,000 that were made in FY 2010. The information is organized by function to show how... with guidance issued on November 5, 2010 by the Office of Management and Budget's Office of Federal..., in the Division of Acquisition Management, Railroad Retirement Board, at (312) 751-7130 or...

  8. 75 FR 7303 - Drake Cement, LLC-Acquisition Exemption-Clarkdale Arizona Central Railroad, LLC

    Science.gov (United States)

    2010-02-18

    ... Surface Transportation Board Drake Cement, LLC--Acquisition Exemption--Clarkdale Arizona Central Railroad, LLC Drake Cement, LLC (DC), a noncarrier, has filed a verified notice of exemption under 49 CFR 1150... Docket No. 35351, Drake Switching Company, LLC --Operation Exemption-- Drake Cement, LLC. DC...

  9. 75 FR 7303 - Union Pacific Railroad Company-Abandonment Exemption-in Polk County, IA

    Science.gov (United States)

    2010-02-18

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Union Pacific Railroad Company--Abandonment Exemption--in Polk County, IA... milepost 10.50 in Ankeny to milepost 10.70 in Ankeny, in Polk County, IA. The line traverses United...

  10. 75 FR 7302 - Union Pacific Railroad Company-Abandonment Exemption-in Polk County, IA

    Science.gov (United States)

    2010-02-18

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Union Pacific Railroad Company--Abandonment Exemption--in Polk County, IA... Polk County, IA. The line traverses United States Postal Service Zip Codes 50317, 50032, 50021,...

  11. Penal Reform and Construction of the Western North Carolina Railroad 1875-1892

    Science.gov (United States)

    Carson, Homer S., III

    2005-01-01

    On March 13, 1879, the "Salisbury Carolina Watchman" noted that the longest and most difficult tunnel in the struggle to lay a railroad line across the Blue Ridge Mountains has been opened. Convicts from North Carolina's new penitentiary built this transportation system and solved the state's need for a cheap labor force as well as the prison's…

  12. 75 FR 38923 - Regulated Navigation Area: Niantic Railroad Bridge Construction, Niantic, CT

    Science.gov (United States)

    2010-07-07

    ... FR 3316). ] Public Meeting We do not now plan to hold a public meeting in connection with the public... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA11 Regulated Navigation Area: Niantic Railroad Bridge Construction, Niantic, CT AGENCY: Coast Guard, DHS. ACTION: Temporary interim rule with request for...

  13. 20 CFR 404.1404 - Effective date of coverage of railroad services under the act.

    Science.gov (United States)

    2010-04-01

    ... FEDERAL OLD-AGE, SURVIVORS AND DISABILITY INSURANCE (1950- ) Interrelationship of Old-Age, Survivors and Disability Insurance Program With the Railroad Retirement Program § 404.1404 Effective date of coverage of..., 1951; insofar as they relate to disability insurance benefits are effective for months after June...

  14. Wheat Fields, Flour Mills, and Railroads: A Web of Interdependence. Teaching with Historic Places.

    Science.gov (United States)

    Koman, Rita G.

    By 1860 much of the beauty of St. Anthony Falls in Minneapolis (Minnesota) had been destroyed, as mills on both sides of the river used the power of the falls to turn millions of bushels of wheat into flour. Steel rails linked bonanza farms hundreds of miles to the west to the mills. The mills, the farms, and the railroads depended on each other…

  15. 76 FR 77890 - Swan Ranch Railroad, L.L.C.-Operation Exemption-Swan Industrial Park

    Science.gov (United States)

    2011-12-14

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Swan Ranch Railroad, L.L.C.--Operation Exemption--Swan Industrial Park Swan... located within the Swan Industrial Park, in Cheyenne, Wyo. The track over which SRR will operate...

  16. Evaluation of the adequacy of maintenance tasks using the failure consequences of railroad vehicles

    International Nuclear Information System (INIS)

    The purpose of this study is to improve the efficiency, reliability and safety related to railroad maintenance tasks through an evaluation of the consequences of failures. The brake system was selected based on the failure data obtained from railroad vehicles in operation as one of the safety systems in railroad vehicles. The failure causes, failure effects, and the criticality of the failure mode were drawn for 62 failure modes of the braking system through the use of an FMECA for the 30 sub-devices having primary functions. The various maintenance tasks for the braking system were categorized into the 62 failure modes and failure consequences using the FMECA and the logic of maintenance decisions. Braking systems manufactured by the same manufacturer and operated by two different operators were studied in an effort to analyze preventive maintenance and to evaluate the adequacy of preventive maintenance tasks for the 62 failure modes. Based on results of the evaluation of these preventive maintenance tasks, new maintenance tasks were proposed, and concrete cost-cutting effects were determined from the calculation of the maintenance time and expected costs, using a preventive maintenance template developed specifically for railroad vehicles

  17. 78 FR 41994 - RSL Railroad LLC-Operation Exemption-Massillon Energy & Technology Park

    Science.gov (United States)

    2013-07-12

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board RSL Railroad LLC--Operation Exemption--Massillon Energy & Technology Park On... milepost 1.27 (the Line), pursuant to an agreement with Massillon Energy & Technology Park (Massillon),...

  18. 78 FR 43273 - Central of Georgia Railroad Company-Abandonment Exemption-in Newton County, Ga.

    Science.gov (United States)

    2013-07-19

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Central of Georgia Railroad Company--Abandonment Exemption--in Newton County... the intersection of Washington Street SW., and Turner Lake Road SW., in Covington), in Newton...

  19. Optimizing Railroad Tank Car Safety Design to Reduce Hazardous Materials Transportation Risk

    Science.gov (United States)

    Saat, Mohd Rapik

    2009-01-01

    The design of railroad tank cars is subject to structural and performance requirements and constrained by weight. They can be made safer by increasing tank thickness and adding various protective features, but these increase the weight and cost of the car and reduce its capacity and consequent transportation efficiency. Aircraft, automobiles and…

  20. Transformational Effects of Museum Exhibits upon Their Patrons: The National Underground Railroad Freedom Center

    Science.gov (United States)

    Caruso-Woolard, Cassandra

    2013-01-01

    The focus of this research was on the affective learning experienced at the National Underground Railroad Freedom Center--a museum that tells the history of slavery in the United States, the courage, cooperation, and perseverance enacted by many who overcame the challenges and consequences of the unfreedoms once practiced in America. Such a study…

  1. 19 CFR 123.13 - Foreign repairs to domestic locomotives and other domestic railroad equipment.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Foreign repairs to domestic locomotives and other domestic railroad equipment. 123.13 Section 123.13 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY CUSTOMS RELATIONS WITH CANADA AND MEXICO International Traffic § 123.13 Foreign...

  2. 78 FR 41993 - Transport Handling Specialists, Inc.-Continuance in Control Exemption-RSL Railroad, LLC

    Science.gov (United States)

    2013-07-12

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Transport Handling Specialists, Inc.--Continuance in Control Exemption--RSL Railroad, LLC Transport Handling Specialists, Inc. (THS), has filed a verified notice of exemption...

  3. Theory and practice of the assessment and valuation of noise from roads and railroads in Europe

    NARCIS (Netherlands)

    Nijland, H.A.

    2008-01-01

    This thesis took the policy-analysis framework of Marchau and Walker (2005) as a starting point for assessment and valuation of road and railroad noise impacts and its consequences for noise policy. Four research questions were answered. To what extent can international data on noise, often produced

  4. 49 CFR Appendix A to Part 215 - Railroad Freight Car Components

    Science.gov (United States)

    2010-10-01

    ... Part 215—Railroad Freight Car Components List of components whose use is restricted by § 215.203 of... with letters “RJ” stamped on the end of the journal. C.Couplers: 1. AAR type “D”, top or bottom.... 2. Farlow draft attachment. E.Plain journal bearings: Cartridge type. F.Roller bearings: 1....

  5. 75 FR 59579 - Restrictions on Railroad Operating Employees' Use of Cellular Telephones and Other Electronic...

    Science.gov (United States)

    2010-09-27

    ... cell phones (mobile phones/cellular phones) have been a concern for years. In addition, each day... of Cellular Telephones and Other Electronic Devices Late Season; Final Rule #0;#0;Federal Register... Employees' Use of Cellular Telephones and Other Electronic Devices AGENCY: Federal Railroad...

  6. 75 FR 27672 - Restrictions on Railroad Operating Employees' Use of Cellular Telephones and Other Electronic...

    Science.gov (United States)

    2010-05-18

    ... caused by cell phones (mobile phones/cellular phones) have been a concern for years. In addition, each...' Use of Cellular Telephones and Other Electronic Devices AGENCY: Federal Railroad Administration (FRA... send a text message, dial a phone, or become occupied with another activity while driving. In...

  7. 75 FR 12329 - Union Pacific Railroad Company-Temporary Trackage Rights Exemption-BNSF Railway Company

    Science.gov (United States)

    2010-03-15

    ... Surface Transportation Board Union Pacific Railroad Company--Temporary Trackage Rights Exemption--BNSF... rights described in STB Finance Docket No. 34554 (Sub-No. 12) \\1\\ to permit the trackage rights to expire... employee protective conditions set forth in Oregon Short Line R. Co.--Abandonment--Goshen, 360 I.C.C....

  8. 76 FR 13445 - North Shore Railroad Company-Operation Exemption-SEDA-COG Joint Rail Authority

    Science.gov (United States)

    2011-03-11

    ... Surface Transportation Board North Shore Railroad Company-Operation Exemption-SEDA-COG Joint Rail..., extending between milepost 0.0 and milepost 2.0 in Berwick, Columbia County, Pa. The line is leased by SEDA-COG Joint Rail Authority (SEDA- COG). NSRR states that the line it proposes to operate is an...

  9. 78 FR 44190 - Union Pacific Railroad Company-Abandonment Exemption-in Miami County, KS

    Science.gov (United States)

    2013-07-23

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Union Pacific Railroad Company--Abandonment Exemption--in Miami County, KS....0 to milepost 335.5 near Osawatomie, in Miami County, Kan. The line traverses United States...

  10. 75 FR 20874 - Union Pacific Railroad Company-Abandonment Exemption-in Orange County, CA

    Science.gov (United States)

    2010-04-21

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Union Pacific Railroad Company--Abandonment Exemption--in Orange County, CA... to milepost 508.65 near the City of Brea, in Orange County, CA. The line traverses United...

  11. 78 FR 46682 - CSX Transportation, Inc.-Joint Use-Louisville & Indiana Railroad Company, Inc.

    Science.gov (United States)

    2013-08-01

    ... Surface Transportation Board CSX Transportation, Inc.--Joint Use--Louisville & Indiana Railroad Company, Inc. AGENCY: Surface Transportation Board, DOT. ACTION: Decision No. 3 in FD 35523; Notice of..., Inc. (L&I). The application seeks Board approval under 49 U.S.C. 11323 et seq., for joint use by...

  12. A multi-objective ant colony optimization method applied to switch engine scheduling in railroad yards

    Directory of Open Access Journals (Sweden)

    Jodelson A. Sabino

    2010-08-01

    Full Text Available This paper proposes an ant colony optimization algorithm to assist railroad yard operational planning staff in their daily tasks. The proposed algorithm tries to minimize a multi-objective function that considers both fixed and variable transportation costs involved in moving railroad cars within the railroad yard area. This is accomplished by searching the best switch engine schedule for a given time horizon. As the algorithm was designed for real life application, the solution must be delivered in a predefined processing time and it must be in accordance with railroad yard operational policies. A railroad yard operations simulator was built to produce artificial instances in order to tune the parameters of the algorithm. The project is being developed together with industrial professionals from the Tubarão Railroad Terminal, which is the largest railroad yard in Latin America.Este trabalho propõe um algoritmo de otimização com colônia de formigas para auxiliar a equipe de planejamento de operações de pátios ferroviários em suas tarefas diárias. O algoritmo proposto é baseado em uma função multi-objetivo que busca a redução dos custos fixo e variável de movimentação de vagões no pátio. Isto é feito através da busca da melhor programação para as locomotivas de manobra, considerando um dado horizonte de planejamento. Como o algoritmo foi desenvolvido para aplicação na vida real, a solução deve ser entregue em um tempo de processamento definido previamente e deve obedecer as políticas operacionais do pátio. Foi desenvolvido um simulador de operações de pátio que gera instâncias artificiais utilizadas para ajuste dos parâmetros do algoritmo. O projeto está sendo desenvolvido em conjunto com profissionais envolvidos na operação do Terminal Ferroviário de Tubarão, o qual é o maior pátio de manobras da América Latina.

  13. Preliminary characterization of the F-Area Railroad Crosstie Pile at the Savannah River Site

    Energy Technology Data Exchange (ETDEWEB)

    1991-10-01

    Historical information about the F-Area Railroad Crosstie Pile is limited. The unit is believed to have been a borrow area for earth fill that began receiving railroad crossties during the 1960s. The number of crossties at the unit began to increase significantly in 1984 when major repair of the SRS rail system was initiated. An estimated 100,000 used railroad crossties have accumulated at the unit since 1984. In an effort to determine the impact of the railroad crossties on the environment a total of 28 soil samples were collected from four test borings in March of 1991. Sample depths ranged from ground surface to 21.5 feet. Three of the borings were extended to the water table and groundwater samples were collected, one in an upgradient background'' area, and two downgradient from the unit. Few analytes were reported above detection limits. Test results are summarized in Section 4.0 and analytes not detected are summarized in Appendix A to this report. In three soil samples collected from depths between 10 and 21.5 feet, copper occurred at levels slightly above background. These copper values were detected in the sidegradient test boring and in the two downgradient test borings. Three organic analytes, acetone, pyridine, and Toluene, were reported above detection limits but well below drinking water standards (DWS) in all test borings, including the upgradient boring. Radionuclide activities were reported above background in both soil and water samples from all test borings. There do not appear to be any statistically significant trends in radionuclide activities with depth, or between upgradient or downgradient borings. The analytes detected in the test borings downgradient from the unit cannot be attributed to the railroad crosstie pile as they are not significantly different than the values reported for the upgradient, background test boring.

  14. Railroad perspective on transportation of spent fuel and high level waste and recent ICC decisions

    International Nuclear Information System (INIS)

    This paper attempts to summarize some railroad viewpoints on issues concerning transportation of spent fuel and high-level waste and to outline Interstate Commerce Commission decisions arising over differing opinions about the manner of such transportation. Although the railroad position includes a number of legal arguments, it also involves operating expertise and a number of well-based questions concerning the safety of casks under actual operating conditions in regular trains. The commonly-used estimates of accident frequency and severity in regular trains are severe underestimates based on a mistake in the annual number of railroad car-miles, inadequacies in and misunderstanding of accident reporting, and invalid assumptions, especially concerning fires, which some actual data suggest are far more frequent than assumed. Thus, railroads estimate casks could be involved in at least 12 accidents involving severe fires by 1990. A number of unanswered questions about casks and perceived inadequacies in testing lead to a conservative railroad position. These include the possibility of escape routes of materials other than by breach such as weld and pressure relief valve failures and direct radiation hazards through loss of shielding. These doubts are fostered through experience with accidents more severe than those used in testing or certification as well as these questions. Also, there is doubt concerning the integrity of fuel rod cladding (used as a second level of containment) in credible accident situations. Moreover, the damage estimates of $1,000 per man rem have been shown to have no relationship to damages in a transportation accident.Added safety is expected in special trains for at least 17 reasons involving speed, transit time, routing, train consist, crew alertness, reduced slack and other reduced hazards and accident opportunities

  15. Study on aerodynamic performances of a vehicle for the catenary maintenance under crosswinds%强侧风条件下接触网检修作业车气动性能研究

    Institute of Scientific and Technical Information of China (English)

    刘金明; 刘堂红; 苏新超

    2015-01-01

    Since the lack of researches on the operation safety for catenary maintenance vehicle under strong cross wind,the aerodynamic performance of catenary maintenance vehicle under different wind -break facilities, different railway conditions,and different cross wind were performed using three dimensional incompressible Navier -Stokes equation and k -εturbulence model.The results show that,with an increase in embankment height in the condition of wind -break wall,the vehicle overturning moment increases when the yaw angle is small,and decreases when the yaw angle is larger.The inflection point variced from 45°to 60°,Where specific numerical value wasrelated to the wind wall type.Where there is none of the wind wall,with an increase in em-bankment height,the vehicle overturning increases when β≤60°and decreases when β>60°.When car work platform rises and rotates from -120°to 120°,the overturning moment would reach its maximum at 30°and minimum at -90°.%针对接触网检修作业车自轮运转特种设备在大风天气下运行及作业安全标准研究的缺乏,采用三维、不可压 N -S方程和 k -ε双方程湍流模型,计算不同防风设施、不同路况和不同环境风风速风向条件对接触网作业车气动性能的影响规律。研究结果表明:有挡风墙下,侧滑角较小时,随着路堤高度的增加,车辆倾覆力矩增大;侧滑角较大时,随着路堤高度的增加,车辆倾覆力矩减小;其拐点在45°~60°左右,具体数值与挡风墙类型有关。无挡风墙下,当侧滑角β≤60°时,车辆气动倾覆力矩随着路堤高度的增高而增大;当侧滑角β>60°时,车辆气动倾覆力矩随路堤高度的增高变化不大。接触网作业车工作平台升起、在-120°~120°转动时,30°左右时整车的倾覆力矩最大,-90°左右时最小。

  16. Effect of parameters of environmental load on dynamic response of steel catenary riser%环境荷载参数对钢悬链线立管动力响应的影响

    Institute of Scientific and Technical Information of China (English)

    张伟; 覃振东

    2014-01-01

    The marine environment is changeful .The steel catenary riser is prone to produce fatigue dam-age so as to affect the safety of production on effect of complex marine environmental load .In order to study the dynamic response of the riser under environmental load , the paper built SCR model by use finite element software ABAQUS .By applying displacement boundary condition on the upper suspension point of the riser to simulate the movement of floating body , using the nonlinear spring whose stiffness is based on P-y curve to simulate the riser-soil interaction , adjusting the parameters of environmental load on the ris-er,it studied the influence of floating body motion , wave amplitude , wave period and current velocity on SCR dynamic response .The results show that the steel catenary riser presents different dynamic response with the change of environmental load , the riser is more sensitive to heaving motion of floating body;the larger the wave amplitude ,the less is its period , the larger the dynamic response of the riser on suspen-sion point and touchdown point;with the increase of current speed , the overhanging length gets bigger .%海洋环境变化多端,钢悬链线立管( SCR)在复杂的环境荷载作用下容易发生疲劳破坏而影响安全,为研究立管在环境荷载作用下的动力响应,本文利用ABAQUS有限元软件对SCR建模,在立管上部悬挂点施加位移边界条件模拟浮体的运动,在立管的触地段采用刚度基于P-y曲线的非线性弹簧单元模拟立管与海床的相互作用,并通过调节立管环境荷载参数,研究了浮体运动、波浪振幅、周期和海流速度等参数对钢悬链线立管动力响应的影响。结果表明:钢悬链线立管随着环境荷载参数的变化呈现出不同的动力响应,立管对浮体的垂荡运动更敏感;波浪的振幅越大、周期越小,立管触地点与悬挂点的动力响应越大;海流速度增大,悬垂段长度会变大。

  17. Railroad Lines, This Layer contains railway features including railroads, rail yards, and public transit rail lines., Published in 1996, 1:100000 (1in=8333ft) scale, Atlanta Regional Commission.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:100000 (1in=8333ft) scale, was produced all or in part from Other information as of 1996. It is described as 'This Layer...

  18. USGS Small-scale Dataset - Global Map: Railroad Stations of the United States 201403 FileGDB 10.1

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This map layer includes Global Map data showing Amtrak intercity railroad terminals in the United States. The data are a modified version of the National Atlas of...

  19. Railroad Lines, vacant railways, Published in 2008, 1:2400 (1in=200ft) scale, Barber County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Not Provided information as of 2008. It is described as 'vacant...

  20. Railroad Lines, County railways, Published in 2008, 1:2400 (1in=200ft) scale, Hamilton County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Not Provided information as of 2008. It is described as 'County...

  1. Railroad Lines, vacant railways, Published in 2008, 1:2400 (1in=200ft) scale, Harper County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Not Provided information as of 2008. It is described as 'vacant...

  2. Railroad Lines, St James Railways, Published in 2010, 1:24000 (1in=2000ft) scale, St James Parish Government.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Orthoimagery information as of 2010. It is described as 'St...

  3. Railroad Lines, vacant railways, Published in 2008, 1:2400 (1in=200ft) scale, Lane County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Not Provided information as of 2008. It is described as 'vacant...

  4. 78 FR 71710 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System

    Science.gov (United States)

    2013-11-29

    ... published on April 11, 2000 (65 FR 19477). Robert C. Lauby, Associate Administrator for Railroad Safety... will be provided at all CPs in the event of an onboard cab failure while in route. The reason given...

  5. 75 FR 41277 - Central of Georgia Railroad Company-Discontinuance of Service Exemption-Newton County, GA; Great...

    Science.gov (United States)

    2010-07-15

    ...--Newton County, GA; Great Walton Railroad Company-- Discontinuance of Operations Exemption--Newton County... Newton, Ga., and the end of the line at milepost E 80.70 at Covington, Ga., in Newton County, Ga....

  6. 77 FR 43146 - Twin Cities & Western Railroad Company, the Estate of Douglas M. Head, and the DMH Trust fbo...

    Science.gov (United States)

    2012-07-23

    ... acquisition from Sisseton Milbank Railroad, Inc. (SMRR) and SLA Property Management Limited Partnership (SLA.... \\1\\ See Sisseton Milbank R.R.--Acquis. & Operation Exemption-- SLA Prop. Mgmt. Ltd. P'ship, FD...

  7. 75 FR 80894 - Delta Southern Railroad, Inc.-Abandonment Exemption-in Desha and Chicot Counties, Ark.

    Science.gov (United States)

    2010-12-23

    ... Chicot Counties, Ark. On December 6, 2010, Delta Southern Railroad, Inc. (DSR), filed with the Surface... or near Lake Village, in Desha and Chicot Counties, Ark. The line traverses United States...

  8. Railroad Lines, Published in 2010, 1:1200 (1in=100ft) scale, DeKalb County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from Orthoimagery information as of 2010. Data by this publisher are...

  9. Study on smart seat technology for railroad vehicles using piezoelectric sensors

    International Nuclear Information System (INIS)

    A study on smart seats for railroad vehicles was conducted using piezoelectric (PZT) sensors. For this purpose, the concept of passenger friendly smart seats was defined, and a PZT sensor was selected as the optimum sensor based on this concept. Using PZT sensors, simulation tests were performed using a sub-scale model railroad vehicle. In these tests, the main functions of the smart seats were extracted and simplified to improve the effectiveness of the simulation tests. Based on the test results, the system for smart seats proposed in this paper was successfully verified using PZT sensors and the dedicated operation software for the system. This paper will contribute to the improvement of services in high-speed rail systems through advances in ticket checking tasks.

  10. Investigation of Key Factors for Accident Severity at Railroad Grade Crossings by Using a Logit Model

    OpenAIRE

    Hu, Shou-Ren; Li, Chin-Shang; Lee, Chi-Kang

    2010-01-01

    Although several studies have used logit or probit models and their variants to fit data of accident severity on roadway segments, few have investigated accident severity at a railroad grade crossing (RGC). Compared to accident risk analysis in terms of accident frequency and severity of a highway system, investigation of the factors contributing to traffic accidents at an RGC may be more complicated because of additional highway–railway interactions. Because the proportional odds assumption ...

  11. Preparedness of hazardous materials emergencies in railyards: Guidance for railroads and adjacent communities

    Energy Technology Data Exchange (ETDEWEB)

    1991-09-01

    Railroads are a key part of the distribution system for hazardous materials and, thus, much hazardous material passes through railyards en route to intermediate or final consumers. While the vast majority of these materials are shipped without incident, both the number of shipments and the nature of the materials themselves dictate that railyards and surrounding communities be prepared to respond quickly and effectively to emergencies. This report contains information on 11 emergency preparedness functions and 150 guidance recommendations.

  12. Reconsidering the Underground Railroad: Slavery and Racialization in the Making of the Canadian State

    Directory of Open Access Journals (Sweden)

    Abigail Bakan

    2008-05-01

    Full Text Available The Underground Railroad is commonly understood as a defining moment in the ideology of the Canadian state regarding the legacy of racism and anti-racism. This paper attempts to recast the narrative of the Underground Railroad through the lens of an anti-imperialist, anti-racist political economy, departing from the view of Canada’s anti-racist rescue of fugitive slaves from racist America. The Underground Railroad was in fact the product primarily of the struggle for self-emancipation of American black slaves. The central place of these actors as agents of their own freedom struggle needs to be recognized and restored, taken as a theoretical and historical starting point in explaining the pre-history of Confederation. The British North American colonies served as a safe space for fugitive slaves as a result of realpolitik; racism and a culture of hegemonic whiteness were endemic to the early origins of the Canadian state. This analysis is placed in the context of current and historical discussions of anti-racism and anti-imperialism.

  13. Predicting routes of radioactive wastes moved on the U.S. railroad system

    International Nuclear Information System (INIS)

    Relative to the use of public roads, railroads offer several advantages for the movement of radioactive wastes. These include the ability to accommodate large, heavy containers, the ability to transfer large volumes in a single movement, and the safety of a dedicated, centrally controlled right-of-way. The principal disadvantage of railroads is that the shipper has considerably less freedom to specify the route a shipment will take. The lower density of the railroad network, the need to coordinate waste shipments with other traffic in the system, and the private ownership of the US network all reduce the shippers routing power. Although the shipper can dictate an exact route, this could require the use of a special train at an increased cost. Before considering the general use of special trains to move radioactive wastes, it is first desirable to determine how these materials would move as general rail traffic. This paper describes the development of a system to predict routes of general rail traffic at Oak Ridge National Laboratory

  14. Predicting routes of radioactive wastes moved on the US railroad system

    International Nuclear Information System (INIS)

    One of the issues to be considered in the analysis of alternative repository sites for nuclear wastes is the pattern of shipments from reactors and other waste sources to the repository. In the United States, regulations and costs make rail shipments the preferred mode for high-level radioactive waste. The railroad network of the United States is owned by approximately 100 corporations that simultaneously compete for traffic and cooperate to move shipments that require carriage by more than one company. Because changing companies usually delays a shipment, there is a tendency to minimize the number of carriers involved in moving it. Moreover, when several carriers are required, the originating company (specified by the shipper) tends to retain the shipment on its portion of the network. These characteristics are nearly unique among the world's rail systems, and they must be recognized in any model of paths of future shipments through the network. This paper describes the development of a rail routing program that can be applied to the movement of radioactive materials throughout the United States. Shipments can be initiated at a specific location on a specific railroad. A route can be generated and displayed on a map of the United States. The particular route generated depends upon the emphasis placed on various classes of rail lines. Demonstration routings illustrate predicted routes of normal freight shipments, the effect of blocking passage through selected cities, and the effect that the existence of independent railroad companies can have on the patterns of shipments

  15. Impact of permafrost change on the Qinghai-Tibet Railroad engineering

    Institute of Scientific and Technical Information of China (English)

    WU; Qingbai; CHENG; Guodong

    2004-01-01

    Permafrost along the Qinghai-Tibet Railroad produces the great change under the influence of climate change, such as the decreasing of permafrost table, the rising of permafrost temperatures, etc. Climate effect on permafrost is the long-term process. Engineering action makes rapidly permafrost the large extent change. On the basis of analyzing the permafrost change under the climate change and engineering action, the thermal regime and spatial distribution of permafrost are predicted for air temperature rising 1℃ and 2℃ after 50 years in this paper. The results show that climate change results in the larger change for the thermal regime and spatial distribution of permafrost. Permafrost change will produce the great effect on the Qinghai-Tibet Railroad engineering, not only resulting in the decreasing of permafrost table beneath the roadbed, but also resulting in thawing settlement due to the thawing of ground ice near permafrost table. The idea of cooling roadbed and active protecting permafrost for the Qinghai-Tibet Railroad engineering could adjust and control the permafrost thermal state, some better methods are provided to ensure the engineering stability in the areas of warm permafrost and high ice content.

  16. Market effects of environmental regulation: coal, railroads, and the 1990 Clean Air Act

    Energy Technology Data Exchange (ETDEWEB)

    Busse, M.R.; Keohane, N.O. [University of California Berkeley, Berkeley, CA (United States)

    2007-01-01

    Many environmental regulations encourage the use of 'clean' inputs. When the suppliers of such an input have market power, environmental regulation will affect not only the quantity of the input used but also its price. We investigate the effect of the Title IV emissions trading program for sulfur dioxide on the market for low-sulfur coal. We find that the two railroads transporting coal were able to price discriminate on the basis of environmental regulation and geographic location. Delivered prices rose for plants in the trading program relative to other plants, and by more at plants near a low-sulfur coal source.

  17. Field testing of prototype systems for the non-destructive measurement of the neutral temperature of railroad tracks

    Science.gov (United States)

    Phillips, Robert; Lanza di Scalea, Francesco; Nucera, Claudio; Fateh, Mahmood; Choros, John

    2014-03-01

    In both high speed and freight rail systems, the modern construction method is Continuous Welded Rail (CWR). The purpose of the CWR method is to eliminate joints in order to reduce the maintenance costs for both the rails and the rolling stock. However the elimination of the joints increases the risk of rail breakage in cold weather and buckling in hot weather. In order to predict the temperature at which the rail will break or buckle, it is critical to have knowledge of the temperature at which the rail is stress free, namely, the Rail Neutral Temperature (Rail-NT).The University of California at San Diego has developed an innovative technique based on non-linear ultrasonic guided waves, under FRA research and development grants for the non-destructive measurement of the neutral temperature of railroad tracks. Through the licensing of this technology from the UCSD and under the sponsorship of the FRA Office of Research and Development, a field deployable prototype system has been developed and recently field tested at cooperating railroad properties. Three prototype systems have been deployed to the Union Pacific (UP), Burlington Northern Santa Fe (BNSF), and AMTRAK railroads for field testing and related data acquisition for a comprehensive evaluation of the system, with respect to both performance and economy of operation. The results from these tests have been very encouraging. Based on the lessons learned from these field tests and the feedback from the railroads, it is planned develop a compact 2nd generation Rail-NT system to foster deployment and furtherance of FRA R&D grant purpose of potential contribution to the agency mission of US railroad safety. In this paper, the results of the field tests with the railroads in summer of 2013 are reported.

  18. Railroading Scrap

    Science.gov (United States)

    Kakela, Peter

    1975-01-01

    This article focuses on the environmental benefits of recycling mainly iron and steel, as well as the current status of such recycling processes. It also examines some of the economic constraints working against recycling, and offers suggestions for correcting the problem. (Author/MA)

  19. Railroad Bridges

    Data.gov (United States)

    Department of Homeland Security — Bridges-Rail in the United States According to The National Bridge Inspection Standards published in the Code of Federal Regulations (23 CFR 650.3), a bridge isA...

  20. Seismic interferometry of railroad induced ground motions: body and surface wave imaging

    Science.gov (United States)

    Quiros, Diego A.; Brown, Larry D.; Kim, Doyeon

    2016-04-01

    Seismic interferometry applied to 120 hr of railroad traffic recorded by an array of vertical component seismographs along a railway within the Rio Grande rift has recovered surface and body waves characteristic of the geology beneath the railway. Linear and hyperbolic arrivals are retrieved that agree with surface (Rayleigh), direct and reflected P waves observed by nearby conventional seismic surveys. Train-generated Rayleigh waves span a range of frequencies significantly higher than those recovered from typical ambient noise interferometry studies. Direct P-wave arrivals have apparent velocities appropriate for the shallow geology of the survey area. Significant reflected P-wave energy is also present at relatively large offsets. A common midpoint stack produces a reflection image consistent with nearby conventional reflection data. We suggest that for sources at the free surface (e.g. trains) increasing the aperture of the array to record wide angle reflections, in addition to longer recording intervals, might allow the recovery of deeper geological structure from railroad traffic. Frequency-wavenumber analyses of these recordings indicate that the train source is symmetrical (i.e. approaching and receding) and that deeper refracted energy is present although not evident in the time-offset domain. These results confirm that train-generated vibrations represent a practical source of high-resolution subsurface information, with particular relevance to geotechnical and environmental applications.

  1. INTERLINE 5.0 -- An expanded railroad routing model: Program description, methodology, and revised user's manual

    International Nuclear Information System (INIS)

    A rail routine model, INTERLINE, has been developed at the Oak Ridge National Laboratory to investigate potential routes for transporting radioactive materials. In Version 5.0, the INTERLINE routing algorithms have been enhanced to include the ability to predict alternative routes, barge routes, and population statistics for any route. The INTERLINE railroad network is essentially a computerized rail atlas describing the US railroad system. All rail lines, with the exception of industrial spurs, are included in the network. Inland waterways and deep water routes along with their interchange points with the US railroadsystem are also included. The network contains over 15,000 rail and barge segments (links) and over 13,000 stations, interchange points, ports, and other locations (nodes). The INTERLINE model has been converted to operate on an IBM-compatible personal computer. At least a 286 computer with a hard disk containing approximately 6 MB of free space is recommended. Enhanced program performance will be obtained by using arandom-access memory drive on a 386 or 486 computer

  2. Soil Contamination by a Former Railroad Shop in Mexico:Proposed Handling and Remedation

    Science.gov (United States)

    Gonzalez, T.; Rocha, M.

    2001-12-01

    The study deals with an area of 589,062 m2 occupied by a national railroad shop located in Aguascalientes, a city in the central part of Mexico. Since 1903, the city became a transcendental railway center in the country and a transportation route toward the United States. Main activities were maintenance and repair of railroads cars, supply of fuel, and foundry of metallic pieces. The place was contaminated for 100 years, up to the recent sale of that company. The workshop area, now surrounded by populated urban areas, is abandoned. This study presents an evaluation of a previous survey of soil contamination in the different areas of the workshop. Based on our evaluation, we are proposing an optimal handling and remediation of the area. The survey referred 19 shallow boreholes (0-12 meters). Cores and chemical samples were analyzed. We defined the most relevant characteristic and contaminants of the soil samples. In terms of health risk analysis, we conclude that the most important contaminants are hydrocarbons and heavy metals. The following areas present the most significant health risk: the fuel supply zone , the oil petroleum or tar (called in Mexico "chapopote") lagoon, the painting area and the dump of axes and wheels.

  3. 75 FR 25310 - Port Harbor Railroad, Inc.-Lease and Operation Exemption-Line of Tri-City Regional Port District

    Science.gov (United States)

    2010-05-07

    ... Surface Transportation Board Port Harbor Railroad, Inc.--Lease and Operation Exemption--Line of Tri-City Regional Port District Port Harbor Railroad, Inc. (Port Harbor), a noncarrier, has filed a verified notice of exemption under 49 CFR 1150.31 to lease from Tri- City Regional Port District (Tri-City), and...

  4. 26 CFR 31.3306(c)(9)-1 - Railroad industry; services performed by an employee or an employee representative under the...

    Science.gov (United States)

    2010-04-01

    ... employee or an employee representative under the Railroad Unemployment Insurance Act. 31.3306(c)(9)-1... Unemployment Insurance Act. (a) Services performed by an individual as an “employee” or as an “employee representative”, as those terms are defined in section 1 of the Railroad Unemployment Insurance Act, as...

  5. 接触网几何参数高速动态视觉测量方法研究%Study on high-speed and dynamic vision measurement approach for overhead catenary system geometric parameter inspection

    Institute of Scientific and Technical Information of China (English)

    占栋; 于龙; 肖建; 陈唐龙; 佘睿

    2014-01-01

    接触网几何参数对于电气化铁路至关重要,其优劣不仅影响弓网受流质量,还关系列车行驶安全。既有接触网几何参数动态检测装置多存在测量频率低、检测速度无法继续提高的现实。随着列车提速和线路日益繁忙,对接触网几何参数动态检测速度要求相应提高。如何在高速动态条件下,准确获取接触网几何参数,成为接触网检测面临的重要问题。针对接触网几何参数高速动态测量实际需要,设计了一种双线阵摄像机与线结构光源相结合的视觉传感器,基于双目线阵主动摄像测量技术,对接触网几何参数进行高速动态测量。系统介绍了2组线阵摄像机及结构光源进行接触网几何参数测量原理,详细推导了双目线阵主动摄像测量计算公式,建立了接触网几何参数非线性视觉测量模型。基于此,研制接触网几何参数高速动态检测装置,并进行动态测量实验。实验结果表明该测量方法切实可行,为该项技术应用于高速铁路接触网几何参数高速动态检测提供试验基础。%Geometric parameters of overhead catenary system (OCS)are critical to the electrical railways.The space positions of the OCS not only determine the current collecting quality of the power equipment,but also influence the driving train safety.With the rail-way speed continuously improving and railway lines increasingly busy,traditional OCS geometric parameter measurement systems face a realistic challenge:most of the traditional OCS geometric parameter dynamic measurement systems have the defect of low acquisition speed,which limits their application in high-speed dynamic measurements.Therefore,how to obtain accurate OCS geometric parameters with high-speed is the key issue for the OCS inspection in the future.In order to improve the dynamic inspection speed of OCS geometric parameter measurement systems,an approach based on two line

  6. Catenary DC Ice-Melting Technology and Device Development of Electrified Railway%电气化铁路接触网直流融冰技术及装置研制

    Institute of Scientific and Technical Information of China (English)

    敬华兵; 年晓红

    2012-01-01

    The icing of traction network seriously affects the normal operation of trunk railway. The characteristics of catenary ice-melting are described. The regulated method of ice-melting current and voltage be changed with the thickness of ice and the distance of the ice-melting line is discussed. A new ice-melting circuit topology witch based on power unit chopper cascaded is proposed. Equivalent circuit of this device with parallel input and output series is promoted, and the control methods of multiple rectifier is analysised. The input harmonic and power factor of phase dislocation four-quadrant rectifier is studied. The control method of chopper tolerant-phase output of cascaded power units is put forword. The working state of the circuit is analysised.The relationship of cascaded power unit voltage balance control principle, chopper output duty cycle, and capacitor voltage are studied and simulated. The high power experimental prototype is designed and full power experimental is completed with short of voltage feedback method. The results show that this ice-melting circuit has steady output voltage with low input harmonic content.It will do little influence on electric network, and can be aoolied to engineering oractice effectively.%铁路牵引网覆冰会严重影响铁路干线的正常运行,本文阐述了接触网融冰的特点,论述了融冰电流、电压随距离和覆冰厚度的调节方法,提出了新型功率单元斩波级联全控整流融冰电路拓扑,推出了该融冰装置的并联输入串联输出(IPOC)等效电路。分析了输入侧多重整流控制的方式,对四象限错相整流的输入谐波及功率因数控制进行了探讨,提出了级联功率单元的斩波错相输出控制方法,分析了电路的工作状态。研究了级联功率单元的均压控制原则以及斩波输出占空比与电容电压的关系,并进行了仿真研究。在此基础上设计了大功率实验样机

  7. KUBAN REGION RAILROAD DURING THE SECOND FIVE-YEAR PLAN: CHALLENGES OF REARRANGING THE MAINTENANCE SCHEDULE AND LABOUR ACHIEVEMENTS BY THE WORKERS

    Directory of Open Access Journals (Sweden)

    Vladimir Eugenyevich Temlyakov

    2015-01-01

    Full Text Available The paper considered the issues the Kuban Region railroad transportation has faced during the Second Five-Year Plan. The author has brought to light the ways people had to cope with the challenges in rearranging the maintenance schedule at the Northern Caucasus Railroad Dept., and the staffing issue being pressing at that period. The survey has shown the part taken by the Communist Party and pubic administration bodies in implementing tasks the railroad transportation has faced. The paper examined resolutions taken in the 1930-ies by the Krasnodar city CPSU conferences and the Krasnodar city Party activists in relation to challenges the railroad transportation faced. The author made an inference that the new means and labour incentive approaches have taken the main part in increasing the rail traffic flow, and wide spreading of socialist emulation and the raising Stakhanovism on the railroad as well.

  8. Catenary nanostructures as compact Bessel beam generators.

    Science.gov (United States)

    Li, Xiong; Pu, Mingbo; Zhao, Zeyu; Ma, Xiaoliang; Jin, Jinjin; Wang, Yanqin; Gao, Ping; Luo, Xiangang

    2016-01-01

    Non-diffracting Bessel beams, including zero-order and high-order Bessel Beams which carry orbital angular momentum (OAM), enable a variety of important applications in optical micromanipulation, sub-diffraction imaging, high speed photonics/quantum communication, etc. The commonly used ways to create Bessel beams, including an axicon or a digital hologram written to a spatial light modulator (SLM), have great challenges to operate at the nanoscale. Here we theoretically design and experimentally demonstrate one kind of planar Bessel beam generators based on metasurfaces with analytical structures perforated in ultra-thin metallic screens. Continuous phase modulation between 0 to 2π is realized with a single element. In addition, due to the dispersionless phase shift stemming from spin-orbit interaction, the proposed device can work in a wide wavelength range. The results may find applications in future optical communication, nanofabrication and super-resolution imaging, etc. PMID:26843142

  9. 76 FR 72752 - Alaska Railroad Corporation-Construction and Operation Exemption-A Rail Line Extension to Port...

    Science.gov (United States)

    2011-11-25

    ... Surface Transportation Board Alaska Railroad Corporation--Construction and Operation Exemption--A Rail... construction and operation exemption. SUMMARY: The Board is granting an exemption under 49 U.S.C. 10502 from... to environmental mitigation conditions and the condition that ARRC build the route designated...

  10. 78 FR 47051 - Clarkdale Arizona Central Railroad, L.C.-Trackage Rights Exemption-Drake Cement, LLC

    Science.gov (United States)

    2013-08-02

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Clarkdale Arizona Central Railroad, L.C.--Trackage Rights Exemption--Drake Cement, LLC Drake Cement, LLC (Drake), pursuant to a written Trackage Rights Agreement (Agreement)...

  11. 20 CFR 404.1402 - When are railroad industry services by a non-vested worker covered under Social Security?

    Science.gov (United States)

    2010-04-01

    ... SECURITY ADMINISTRATION FEDERAL OLD-AGE, SURVIVORS AND DISABILITY INSURANCE (1950- ) Interrelationship of Old-Age, Survivors and Disability Insurance Program With the Railroad Retirement Program § 404.1402... determine entitlement to a period of disability (see subpart B of this part) on the basis of your wages...

  12. 75 FR 11991 - ABC & D Recycling, Inc.-Lease and Operation Exemption-a Line of Railroad in Ware, MA

    Science.gov (United States)

    2010-03-12

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board ABC & D Recycling, Inc.--Lease and Operation Exemption--a Line of Railroad in Ware, MA ABC & D Recycling, Inc. (ABC & D), a noncarrier, has filed a verified notice of...

  13. 75 FR 49549 - ABC & D Recycling, Inc.-Lease and Operation Exemption-a Line of Railroad in Ware, MA

    Science.gov (United States)

    2010-08-13

    ... Surface Transportation Board ABC & D Recycling, Inc.--Lease and Operation Exemption--a Line of Railroad in Ware, MA ABC & D Recycling, Inc. (ABC & D), a noncarrier, has filed a verified notice of exemption... operation of this trackage in FD 35356, ABC & D Recycling, Inc.--Lease and Operation Exemption--a Line...

  14. 77 FR 49862 - Santa Cruz and Monterey Bay Railway Company-Assignment of Lease Exemption-Union Pacific Railroad...

    Science.gov (United States)

    2012-08-17

    ... Surface Transportation Board Santa Cruz and Monterey Bay Railway Company--Assignment of Lease Exemption--Union Pacific Railroad Company and Sierra Northern Railway Santa Cruz and Monterey Bay Railway Company... assignment from Sierra Northern Railway its lease and operating rights over a 31.0-mile rail line (the...

  15. 76 FR 42163 - East Penn Railroad, L.L.C.; Lease and Operation Exemption; Norfolk Southern Railway Company

    Science.gov (United States)

    2011-07-18

    ... Surface Transportation Board East Penn Railroad, L.L.C.; Lease and Operation Exemption; Norfolk Southern... delegated the authority to determine whether to issue notices of exemption for lease transactions under 49 U... has determined that this lease and operation notice of exemption should be issued, and does so...

  16. Development of models of assessment of influence of human factor upon innovation development of railroad transport enterprises

    Directory of Open Access Journals (Sweden)

    Samsonkin Valerii M.

    2014-01-01

    Full Text Available Changes in the socio-economic environment of functioning of railroad companies and corresponding transition to market economic conditions make us deeply reconsider our relation to the human factor as the main source of increase of the level of efficiency of both individual railroad enterprises and companies in general. But, apart from exclusively humanistic (evolution relation to this process, it is necessary to find means of formalisation of professional activity of a person or certification of personnel. The article is devoted to the above stated issues. In the result of the study the article develops a model of analysis of professional activity of a person at railroad transport, which gives a possibility to numerically determine the level of intellectual, social and physical components of the human factor and also to identify directions and efficiency of investing and a model of determination of the number, which ensures optimisation of the number of personnel of enterprises and structural subdivisions. In order to identify the most significant resources that are connected with personnel, time, place, method, motivation type, obtained effect and intensity of railroad transport operation the article offers to analyse results of professional activity of personnel of each structural subdivision by the “what” is created / developed / performed (regarding professional activity, “where” (enterprise name and its subordination,“when” and “who” created (developed / performed and “how” and “why” scheme.

  17. 75 FR 61817 - Adrian & Blissfield Rail Road Company-Continuance in Control Exemption-Jackson & Lansing Railroad...

    Science.gov (United States)

    2010-10-06

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Adrian & Blissfield Rail Road Company--Continuance in Control Exemption--Jackson & Lansing Railroad Company Adrian & Blissfield Rail Road Company (ADBF), a Class III rail...

  18. 78 FR 23634 - Union Pacific Railroad Company-Trackage Rights Exemption-Elgin, Joliet and Eastern Railway Company

    Science.gov (United States)

    2013-04-19

    ... Surface Transportation Board Union Pacific Railroad Company--Trackage Rights Exemption--Elgin, Joliet and Eastern Railway Company Pursuant to a written trackage rights agreement dated December 18, 2012, Elgin, Joliet and Eastern Railway Company (EJ&E) \\1\\ has agreed to grant overhead trackage rights to...

  19. 77 FR 17122 - Indiana Southern Railroad, LLC-Temporary Trackage Rights Exemption-Norfolk Southern Railway Company

    Science.gov (United States)

    2012-03-23

    ... Surface Transportation Board Indiana Southern Railroad, LLC--Temporary Trackage Rights Exemption--Norfolk Southern Railway Company Norfolk Southern Railway Company (NSR), pursuant to a written trackage rights agreement (Agreement), has agreed to grant overhead temporary trackage rights to Indiana Southern...

  20. 76 FR 21425 - Rocky Mountain Railcar and Repair, Inc.-Acquisition and Operation Exemption-Line of Railroad in...

    Science.gov (United States)

    2011-04-15

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Rocky Mountain Railcar and Repair, Inc.--Acquisition and Operation Exemption--Line of Railroad in Tooele County, UT Rocky Mountain Railcar and Repair, Inc. (Rocky Mountain), a noncarrier, has filed a verified notice...

  1. 77 FR 69928 - Transco Railway Products Inc.-Acquisition and Operation Exemption-D&W Railroad LLC

    Science.gov (United States)

    2012-11-21

    ... Surface Transportation Board Transco Railway Products Inc.--Acquisition and Operation Exemption--D&W... exemption under 49 CFR 1150.31 to acquire from D&W Railroad LLC (D&W) and to operate approximately 23 miles...&W main line, which segments include three parallel tracks northeast of the Stub-ended...

  2. 42 CFR 406.12 - Individual under age 65 who is entitled to social security or railroad retirement disability...

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 2 2010-10-01 2010-10-01 false Individual under age 65 who is entitled to social security or railroad retirement disability benefits. 406.12 Section 406.12 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES MEDICARE PROGRAM HOSPITAL...

  3. 75 FR 37878 - Soo Line Railroad Company-Discontinuance of Trackage Rights Exemption-in Wayne, Washtenaw...

    Science.gov (United States)

    2010-06-30

    ... Buren, and Berrien Counties, MI, LaPorte, Porter, and Lake Counties, IN, and Cook County, IL Soo Line Railroad Company (Soo Line) \\1\\ has filed a verified notice of exemption under 49 CFR Part 1152 Subpart F...,500. See 49 CFR 1002.2(f)(25). \\4\\ Because this is a discontinuance proceeding and not an...

  4. 77 FR 24561 - Union Pacific Railroad Company-Abandonment of Freight Easement Exemption-in Alameda and Santa...

    Science.gov (United States)

    2012-04-24

    ... Alameda and Santa Clara Counties, CA (San Jose Industrial Lead); Santa Clara Valley Transportation Authority--Abandonment of Residual Common Carrier Obligation Exemption--in Alameda and Santa Clara Counties, CA (San Jose Industrial Lead) On April 4, 2012, Union Pacific Railroad Company (UP) and Santa...

  5. 77 FR 77183 - Union Pacific Railroad Company-Abandonment of Freight Easement Exemption-in Alameda County, Cal...

    Science.gov (United States)

    2012-12-31

    ... Industrial Lead); Santa Clara Valley Transportation Authority--Abandonment of Residual Common Carrier... Railroad Company (UP) and Santa Clara Valley Transportation Authority (SCVTA) jointly filed with the... contiguous to the segment between mileposts 7.35 and 16.30 in Alameda and Santa Clara Counties, Cal.,...

  6. 75 FR 52818 - R.J. Corman Railroad Company/Central Kentucky Lines, LLC-Trackage Rights Exemption-CSX...

    Science.gov (United States)

    2010-08-27

    ... Surface Transportation Board R.J. Corman Railroad Company/Central Kentucky Lines, LLC-- Trackage Rights... Transportation, Inc. (CSXT) has agreed to grant additional limited overhead trackage rights \\1\\ to R.J. Corman... Louisville, Ky., a distance of approximately 17 miles.\\2\\ \\1\\ The original rights were obtained by...

  7. 75 FR 68397 - DeQueen and Eastern Railroad, LLC-Acquisition and Operation Exemption-DeQueen and Eastern...

    Science.gov (United States)

    2010-11-05

    ... border) and milepost 87.0 (Perkins, Ark.), including auxiliary, temporary storage, and spur tracks, in Howard and Sevier Counties, Ark.\\1\\ \\1\\ DQE states that it intends to interchange traffic at De Queen, Ark. with Kansas City Southern Railway Company, at Perkins with Union Pacific Railroad Company, and...

  8. 49 CFR Appendix A to Part 209 - Statement of Agency Policy Concerning Enforcement of the Federal Railroad Safety Laws

    Science.gov (United States)

    2010-10-01

    ... collectively herein as the “older safety statutes”: The Safety Appliance Acts, 45 U.S.C. 1-16; the Locomotive..., steam locomotives, and grade crossing signals apply to these non-insular tourist operations (see 49 CFR... CFR 1.49 (c), (d), (f), (g), and (m). Those statutes include the Federal Railroad Safety Act of...

  9. 75 FR 34200 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System

    Science.gov (United States)

    2010-06-16

    ... Company (ST). ST is the operator of the railroad line for PAS, owner. PAS is a joint venture between the Boston and Maine Corporation (B&M) and the Norfolk Southern Railway Company. Both ST and B&M are wholly owned subsidiaries of Pan Am Railways, Inc. ST seeks approval of the discontinuance and removal of...

  10. Farmers, Ranchers, and the Railroad: The Evolution of Fence Law in the Great Plains, 1865-1900

    Science.gov (United States)

    Kawashima, Yasuhide

    2010-01-01

    This article is divided into three parts. The first examines specific fencing policies in Kansas, Nebraska, and other Plains states, highlighting the transformation from the "fence-out" to "fence-in" (herd laws) policies. The second part discusses the coming of the railroads to the Great Plains and the farmers and the ranchers as beneficiaries who…

  11. 77 FR 66663 - Tongue River Railroad Company, Inc.-Rail Construction and Operation-in Custer, Powder River and...

    Science.gov (United States)

    2012-11-06

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Tongue River Railroad Company, Inc.--Rail Construction and Operation--in Custer, Powder River and Rosebud Counties, MT.; Correction to the Notice of Intent To Prepare...

  12. 77 FR 67863 - Tongue River Railroad Company, Inc.-Rail Construction and Operation-in Custer, Powder River and...

    Science.gov (United States)

    2012-11-14

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Tongue River Railroad Company, Inc.--Rail Construction and Operation--in Custer, Powder River and Rosebud Counties, Montana: Update to the Notice of Intent to Prepare...

  13. 78 FR 1936 - Tongue River Railroad Company, Inc.-Rail Construction and Operation-In Custer, Powder River and...

    Science.gov (United States)

    2013-01-09

    ... Surface Transportation Board Tongue River Railroad Company, Inc.--Rail Construction and Operation--In... Supplemental Application for Construction and Operation Authority and Board Acceptance. SUMMARY: Tongue River... Tongue River I.\\1\\ In 1996, the Board authorized TRRC to build a contiguous 41-mile line from Ashland...

  14. 77 FR 71872 - Tongue River Railroad Company, Inc.-Rail Construction and Operation-in Custer, Powder River and...

    Science.gov (United States)

    2012-12-04

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Tongue River Railroad Company, Inc.--Rail Construction and Operation--in Custer, Powder River and Rosebud Counties, MT; Extension of Comment Period for the Draft Scope of...

  15. 77 FR 9296 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System

    Science.gov (United States)

    2012-02-16

    ... 112. The reason given is that the ABS system is not needed for efficient and safe operation of trains... Railroad Signal System In accordance with Part 235 of Title 49 of the Code of Federal Regulations (CFR) and... approval for the discontinuance or modification of a signal system. FRA assigned the petition Docket...

  16. 76 FR 21943 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System

    Science.gov (United States)

    2011-04-19

    ...) seeks approval of the proposed discontinuance and removal of the automatic block signal system (ABS) on... Railroad Signal System Pursuant to Title 49 Code of Federal Regulations (CFR) Part 235 and 49 U.S.C. 20502... for the discontinuance or modification of the signal system, as detailed below. Docket Number...

  17. 77 FR 31429 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System

    Science.gov (United States)

    2012-05-25

    ... approval of the proposed discontinuance of an automatic block signal (ABS) system and a traffic control... Railroad Signal System In accordance with Part 235 of Title 49 Code of Federal Regulations (CFR) and 49 U.S...) seeking approval for the discontinuance or modification of a signal system. FRA assigned the...

  18. 76 FR 27170 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System

    Science.gov (United States)

    2011-05-10

    ... Railroad Signal System In accordance with part 235 of title 49 of the Code of Federal Regulations (CFR) and... approval for the discontinuance or modification of a signal system. FRA assigned the petition Docket Number... track 1. The Method of Operation on the running track, currently ABS-261 and CPS-261, will become...

  19. NASA Science in the Middle of Nowhere: Measuring Greenhouse Gases in Railroad Valley, NV

    Science.gov (United States)

    Iraci, Laura T.

    2011-01-01

    In June 2011, scientists from NASA's Ames Research Center joined a multi-institute team of researchers to investigate carbon dioxide and methane gas emissions from a dry lake bed and the neighboring environment in Railroad Valley, Nevada. Measurements were taken from the ground and onboard two aircraft, and the data will be compared to those measured by the GOSAT satellite. During the campaign, the Ames team conducted a series of flights with an unmanned aircraft system (UAS) known as SIERRA and with a modified Alpha Jet. Methane emissions were also measured from hot and cold springs in the area, and soil microbiology was explored to determine the origin of the methane. This talk will describe the instrumentation and airborne platforms used, as well as preliminary results.

  20. Preliminary characterization of the F-Area Railroad Crosstie Pile at the Savannah River Site. Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    1991-10-01

    Historical information about the F-Area Railroad Crosstie Pile is limited. The unit is believed to have been a borrow area for earth fill that began receiving railroad crossties during the 1960s. The number of crossties at the unit began to increase significantly in 1984 when major repair of the SRS rail system was initiated. An estimated 100,000 used railroad crossties have accumulated at the unit since 1984. In an effort to determine the impact of the railroad crossties on the environment a total of 28 soil samples were collected from four test borings in March of 1991. Sample depths ranged from ground surface to 21.5 feet. Three of the borings were extended to the water table and groundwater samples were collected, one in an upgradient ``background`` area, and two downgradient from the unit. Few analytes were reported above detection limits. Test results are summarized in Section 4.0 and analytes not detected are summarized in Appendix A to this report. In three soil samples collected from depths between 10 and 21.5 feet, copper occurred at levels slightly above background. These copper values were detected in the sidegradient test boring and in the two downgradient test borings. Three organic analytes, acetone, pyridine, and Toluene, were reported above detection limits but well below drinking water standards (DWS) in all test borings, including the upgradient boring. Radionuclide activities were reported above background in both soil and water samples from all test borings. There do not appear to be any statistically significant trends in radionuclide activities with depth, or between upgradient or downgradient borings. The analytes detected in the test borings downgradient from the unit cannot be attributed to the railroad crosstie pile as they are not significantly different than the values reported for the upgradient, background test boring.

  1. USGS Small-scale Dataset - Railroad and Bus Passenger Stations of the United States 201207 FileGDB 10.1

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This map layer shows Amtrak intercity railroad and bus passenger terminals in the United States. There are no Amtrak stations in Alaska or Hawaii. The data are a...

  2. Railroad Bridges and Culverts, MGRC Service Region, Published in 2007, 1:4800 (1in=400ft) scale, Middle Georgia RC.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Bridges and Culverts dataset, published at 1:4800 (1in=400ft) scale, was produced all or in part from Other information as of 2007. It is described as...

  3. Railroad Lines, Maryland Transit Adminstration's Light Rail, Metro and MARC rail routes., Published in 2013, 1:24000 (1in=2000ft) scale, Maryland Transit Administration.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Other information as of 2013. It is described as 'Maryland...

  4. Railroad Lines, Contains all active rail lines for the State of Michigan, Published in 2009, 1:2400 (1in=200ft) scale, Office of Shared Solutions.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Field Survey/GPS information as of 2009. It is described as...

  5. Railroad Lines, Rail lines with Owner names, status and class., Published in 2005, 1:24000 (1in=2000ft) scale, INDOT.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Orthoimagery information as of 2005. It is described as 'Rail...

  6. An Innovative Solution for Suburban Railroad Transportation: The Gas Turbine-Hybrid Train

    Directory of Open Access Journals (Sweden)

    Enrico Sciubba

    2005-03-01

    Full Text Available

    The paper reports the latest results of a study conducted on a hybrid train in which a gas turbine, operating in several alternative control modes (fixed point, on-off or load-following, generates the electrical energy for recharging a battery package and for driving the electric motors of a suburban train. The model, originally developed for automotive applications, has been validated by experimental tests performed on an ELLIOTT TA-45 GT group in the ENEA-Casaccia Research Center.

    This paper describes the preliminary design of the traction system and the choice of the energy flow control strategy. Numerical simulations have been carried out, based on an actual train mission (the Norwegian railroad track between Asker and Lillehammer and on industrial data for the single components. Following two different approaches, separate optimizations of the gas turbine set and battery package are performed, in which the objective function is the monetary cost per mission or, which is equivalent, the kWh/(t·km for a given mission profile.

  7. Assessment of the potential for biodegradation of petroleum hydrocarbons in the Railroad Industrial Area, Fairbanks, Alaska

    Science.gov (United States)

    Braddock, Joan F.; Catterall, Peter H.; Richmond, Sharon A.

    1998-01-01

    Many technologies for the clean-up of petroleum-hydrocarbon contaminated sites depend on microbial degradation of the pollutant. In these technologies the site may be modified to enhance microbial activity, or may simply be monitored for naturally occurring microbial activity. In either case, an important aspect of site assessment for these technologies is to determine if the microorganisms present at the site have the potential to break down contaminants under the prevailing environmental conditions. We examined the numbers and activity of hydrocarbon-degrading microorganisms in ground water collected from petroleum-hydrocarbon contaminated and uncontaminated wells at the Railroad Industrial Area near Fairbanks, Alaska. We found that the population of gasoline-degrading microorganisms in ground water was correlated to the degree of contamination by benzene, toluene, ethylbenzene and xylenes (BTEX). We also found that these organisms could actively mineralize these types of compounds in laboratory mineralization assays. Increasing temperature and adding nutrients both enhanced the rate of mineralization in the laboratory, but measurable degradation still occurred under conditions similar to those found in the field. Dissolved oxygen in ground water at this site ranged from 0 to 3.6 milligrams per liter. Therefore, oxygen may not always be available to microorganisms as a terminal electron acceptor. Preliminary geochemical evidence from the field indicates that alternative electron acceptors such as Fe(III), sulfate, or nitrate may be used, contributing to degradation of contaminants at this site.

  8. REMOVAL OF OIL AND GREASE FROM THE WASTEWATER OF RAILROAD REPAIR SHOP

    Directory of Open Access Journals (Sweden)

    Z.Johari

    1997-12-01

    Full Text Available The purposes of this research have been to determine the wastewater quality of a typical railroad repair workshop and to find a way to reduce the concentrations of present contaminants especially oil and grease. The mean concentrations of oil, COD and SS in the wastewater studied were 287.69, 775.85 and 28723, respectively with average daily discharge to be 30-35 m3. Three successive treatment processes were used and the results showed the first stage was gravity flotation with 90 minutes retention time. Removal efficiencies achieved for COD, SS and oil were determined 43%, 49.4% and 55.5% respectively. The second stage of treatment was coagulation either lime or ferric chloride could be used for this purpose at PHs of 9 and 6. COD and oil removals by lime treatment were 76.6% and 84.4%. The final stage of treatment was DAF at 3 atmospheric pressure, by which 92.5%, 89.5%, 89.92% and 88% removals were achieved for oil, SS and COD, respectively.

  9. Markers of exposure to diesel exhaust in railroad workers. Research report

    Energy Technology Data Exchange (ETDEWEB)

    Schenker, M.B.; Samuels, S.J.; Kado, N.Y.; Hammond, S.K.; Smith, T.J.

    1990-01-01

    The study measured the exposure of railroad workers to diesel exhaust and environmental tobacco smoke by using personal air samples taken over two consecutive work shifts. Urine samples were collected from 87 subjects at the end of the study work shifts and were analyzed for markers of cigarette smoking (nicotine, cotinine) and for mutagenicity, using a sensitive microsuspension assay (Salmonella strain TA98 with or without S9 enzyme). Among smokers, a dose-response relationship was observed between urinary mutagenicity and the number of cigarettes smoked on the study day. After cigarette smoking was controlled for, no association was present between diesel exhaust exposure and urinary mutagenicity. Among nonsmokers, detectable concentrations of mutagens were present in the urine, but no association could be found between markers of diesel exhaust or environmental tobacco smoke and urinary mutagenicity. It was concluded that the mutagens associated with the levels of exposure to diesel exhaust or environmental tobacco smoke in the study were undetectable in the urine.

  10. METHODOLOGY OF DETERMINATION OF ADMISSIBLE SPEEDS OF TRAIN MOVEMENT ON DIFFICULT SECTIONS OF RAILROAD PLAN

    Directory of Open Access Journals (Sweden)

    M. B. Kurhan

    2014-03-01

    Full Text Available Purpose. Determination of improvement ways of admissible speeds of train movement on the difficult sections of а railroad plan. Methodology. Mathematical modeling of the train traffic is used to achieve the purpose of research. The average weighted speed and elevation of outer rail is predicted on this basis. Findings. The case analysis of the speeds determination in curved sections of track was carried out. The above mentioned track sections adversely affect the ride comfort and the intensity of the way disorder, as well as the reasons that contribute to the speed limits traffic on the railways of Ukraine. The technique of performing the calculations for determining the permissible train speeds was developed and tested on real curves of railways, were the accelerated movement of trains was introduced. Proposals on automate calculations in distances and services by way of determining the permissible speeds in curves were developed. Originality. Methodology of determining the permissible motion speeds and elevation of outer rails on the difficult sections of the railway plan was developed. This approach allows you to get a rational decisions on reorganization of plan based on local conditions. Practical value. The developed technique of definition of admissible speeds of motion in curves was implemented as a program DopShvid. The program was tested on real railway sections, where the accelerated train motion was introduced.

  11. 基于耐张串等效悬链线形状下的特高压孤立档计算方法研究%Research of UHV Transmission Line Isolated Span Calculation Based on Tension String Being Equivalent to Catenary

    Institute of Scientific and Technical Information of China (English)

    赵全江; 刘文勋; 黄欲成

    2015-01-01

    With the increase of voltage level, the length and weight of tension insulator string increase significantly, especially UHV transmission line, tension insulator string may have a serious effect on conductor stress and sag calculation of isolated span. A new method based on basic theory and calculation formula of wire mechanics is proposed, which assumes that the tension insulator string is equivalent to catenary, and gives advice on the conductor stress and sag calculation of UHV transmission line isolated span.%随着电压等级的提高,耐张绝缘子串长度和重量显著增加,特别是特高压输电线路,耐张绝缘子串会对孤立档导线的应力、弧垂计算产生严重影响。基于电线力学的基本理论和计算公式,提出一种将耐张绝缘子串等效为悬链线的孤立档计算方法,对特高压输电线路孤立档导线的应力、弧垂设计给出建议。

  12. GEO-ECOLOGICAL PECULIARITIES OF ENVIRONMENTAL POLLUTION WITH OIL PRODUCTS EMITTED BY RAILROAD FACILITIES

    Directory of Open Access Journals (Sweden)

    Senyushchenkova Irina Mikhaylovna

    2012-10-01

    Full Text Available Linear railroad facilities have been producing an adverse impact on the environment by polluting it with oil products for an extensive period of time. The authors of the article consider several mechanisms of contamination and the pattern of its spread into soils. Currently, areas that used to be unsuitable for development as urban lands for geological or environmental reasons are now being intensively developed. The study is exemplified by a city outstretched onto the complex terrain. Complex topography contemplates geological, tectonics-related, hydrological conditions, exogenous processes and anthropogenic factors. In this connection, the main purpose of the study is to analyze the geo-ecological factors that impact urban lands in complex geo-morphological conditions with a view to their functional use against minimal environmental risks to assure the most favorable conditions for humans. Towards this end, the authors have applied the following theoretical and practical methods of research, including a pilot study, namely (1 the geomorphological analysis of urban lands, (2 the monitoring and analysis of the anthropogenic impact produced onto various constituents of the environment, and (3 development of methods of functional use of urban lands in complex geomorphological conditions. The authors have monitored contaminated lands to develop their recommendations for their development in complex geomorphological conditions, namely: 1. Urban development planning should be performed with consideration for the geomorphological elements taken as a whole, as they are closely connected to one another. 2. Selection of methods of rehabilitation of urban lands must be preceded by the zoning of the territory based on its geological and environmental properties.

  13. Railroad Lines, HOGARDC has Railroad Lines for Appling, Bleckley, Candler, Dodge, Emanuel, Evans, Jeff Davis, Johnson, Laurens, Montgomery, Tattnall, Telfair, Toombs, Treutlen, Wayne, Wheeler, and Wilcox Counties., Published in 2007, 1:7200 (1in=600ft) scale, Heart of Georgia Altamaha RDC.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:7200 (1in=600ft) scale, was produced all or in part from Other information as of 2007. It is described as 'HOGARDC has...

  14. Railroad Lines, This data set represents the railroads in Utah and portions of Arizona, Colorado, Idaho, Nevada and New Mexico that appear on the 1:100,000 scale topographical map series from the U. S. Geological Survey (USGS)., Published in 1985, 1:100000 (1in=8333ft) scale, State of Utah Automated Geographic Reference Center.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at 1:100000 (1in=8333ft) scale, was produced all or in part from Hardcopy Maps information as of 1985. It is described as...

  15. ULTRASONIC EVALUATION OF STRESS STATES OF RIMS OF RAILROAD WHEELS. PART 2 — EXPERIENCES AND FUTURE ADAPTATIONS

    OpenAIRE

    Schneider, E.; DYMKIN G.

    2013-01-01

    An ultrasonic technique was developed and different systems are in use to evaluate the stress state of the rim of solid railroad wheels. The measure results received with the UER system versions developed by IZFP as well as the Russian version УКОН-01 was shown and described in the paper. Because the stress state of new wheels is smaller in value than the stress in braked wheels, the influence of a slightly developed texture in new wheels cannot be neglected as it can in case of used wheels. ...

  16. Challenges and issues with building a potential railroad to Yucca Mountain

    Energy Technology Data Exchange (ETDEWEB)

    Sweeney, R.L.

    2004-07-01

    on public comments and the environmental analyses in the Repository EIS, DOE identified a preference for the Caliente rail corridor in Nevada. This corridor is approximately 513 kilometers (319 miles) long and would cost an estimated $880 million (2001 dollars). Should DOE decide to build the Caliente corridor, it may be the longest rail line built in the United States since the Transcontinental Railroad was constructed in 1869. Some of the challenges in building this rail corridor are steep grades (the corridor crosses over 7 mountain ranges), isolated terrain, possible tunnels, and stakeholder acceptance.

  17. 高速铁路牵引供电接触网用带间隙避雷器的研制%Development of Metal Oxide Surge Arrester With Series Gap for Traction Power Supply System Catenary of High-speed Electrified Railway

    Institute of Scientific and Technical Information of China (English)

    边凯; 陈维江; 沈海滨; 李成榕; 王立天; 赵海军; 王彦利; 尹彬; 李庆余

    2013-01-01

    中国高速铁路线路高架桥路段比例大,且相对集中在雷电活动较强烈地区,牵引供电接触网雷击故障多,须采取措施加以解决.在接触网绝缘子旁并联安装带间隙避雷器是一种有效的防雷措施.根据接触网布局结构和运行可靠性要求高的特点,提出了一种与绝缘子一体化安装的避雷器分体结构型式,特别设计抱箍增强安装稳定性,提出了一种避雷器本体压力释了U型放结构可有效释放短路能量,研究选择了本体关键参数和串联间隙距离,确定了短路试验和振动试验方法和条件,对样品进行了雷电冲击放电伏秒特性试验、短路试验和振动试验,从而验证该技术性能的可靠性.最后,研制了适合接触网正馈线、接触线和加强线绝缘子使用的3种形式避雷器,并获国家发明专利授权,已在京沪高速铁路上试运行,状态良好.%In China, viaduct sections are widely adopted in high-speed electrified railway lines and most of the lines go through strong lightning activity areas. This leads to high lightning stroke failure rate of traction power supply catenary. To install metal oxide surge arrester with series gap(GMOA) parallel with insulators is an ideal lightning protection measure to solve the problem. In the paper, a kind of arrester and insulator integral mounting structure type was put forward, U-shaped clamp was specially designed to enhance the stability of the installation, an arrester body pressure release structure was presented to release the short-circuit energy effectively, the primary parameters of MOA body and the distance of series gap were selected, the test methods and conditions of short-circuit test and vibration test were provided, and the samples proved reliable by the results of lightning impulse test .short-circuit current test and vibration test. Three kinds of GMOA products with positive feeder/contact wire/strengthened contact wire insulators were

  18. Health assessment for Western Pacific Railroad, Oroville Yard, Oroville, Butte County, California, Region 9. CERCLIS No. CAD980894679. Preliminary report

    International Nuclear Information System (INIS)

    The Western Pacific Railroad's (WPR) Oroville yard, near Oroville, California, has been proposed for inclusion on the U.S. Environmental Protection Agency's National Priorities List (NPL). WPR operated the 90-acre railyard for almost 60 years until the railyard was purchased by Union Pacific Railroad (UPR) in 1983. The servicing and repair of railcars on the site generated petroleum product wastes, chlorinated solvent waste, and heavy metal wastes that have migrated into the soils of the area. The WPR site is located on dredger tailings east of the Feather River, two miles south of Oroville. The Regional Water Quality Control Board (RWQCB) has identified three primary sources of contamination on site: a roundhouse or fueling area, an unlined surface impoundment, and an API oil-water separator. Other industries, also built over the dredger tailings, are in the vicinity of the site. The limited data available on concentrations of contaminants on site and off site are not sufficient to determine if humans are being or have been exposed to levels of contamination that would be expected to cause adverse health effects. Although there is no evidence at this time that WPR is the source, the burning of petroleum and chlorinated solvent wastes, such as took place at the pond on this site, has been known to generate dioxins and furans. Therefore, this site is classified as an indeterminate public health hazard

  19. Thermal state of ice-rich soils on the Tommot-Yakutsk Railroad right-of-way

    Institute of Scientific and Technical Information of China (English)

    Pavel Skryabin

    2014-01-01

    This-paper-summarizes-the-results-of-investigations-carried-out-in-the-northern-section-of-the-Tommot-Yakutsk-Railroad-in-eastern-Siberia,-underlain-by-ice-rich-permafrost.-The-ongoing-permafrost-and-geotechnical-research-program-in-support-of-railroad-construction-includes-assessment-of-the-ground-thermal-state-on-the-right-of-way-and-adjacent-areas-based-on-long-term-field-observations-using-the-method-of-terrain-thermal-physics.-These-studies-focus-on-the-upper-permafrost-within-the-depth-of-annual-temperature-variation.-In-undisturbed-areas,-inter-annual-variability-of-the-ground-thermal-state-shows-little-response-to-recent-climatic-variations.-However,-forest-clearing-and-surface-disturbance-during-right-of-way-construction-cause-an-increase-in-permafrost-temperature,-deepening-of-the-active-layer,-thaw-settlement,-and-water-ac-cumulation-along-the-embankment.-The-active-layer-is-thickest-along-the-sun-exposed-left-berm-and-is-thinnest-along-the-more-shaded-right-berm.-Measures-to-prevent-thaw-related-embankment-problems-are-recommended.

  20. 20 CFR 404.1405 - If you have been considered a non-vested worker, what are the situations when your railroad...

    Science.gov (United States)

    2010-04-01

    ..., SURVIVORS AND DISABILITY INSURANCE (1950- ) Interrelationship of Old-Age, Survivors and Disability Insurance... continue to work in the railroad industry after establishing entitlement to old-age insurance benefits... establish your entitlement to, or to determine the amount of, your old-age insurance benefits under...

  1. 78 FR 75959 - CaterParrott Railnet, LLC-Change in Operators Exemption-Rail Lines of Central of Georgia Railroad...

    Science.gov (United States)

    2013-12-13

    ... Surface Transportation Board CaterParrott Railnet, LLC--Change in Operators Exemption--Rail Lines of Central of Georgia Railroad Company CaterParrott Railnet, LLC (CPR), a Class III rail carrier, has filed a verified notice of exemption under 49 CFR 1150.41 to change operators from Squaw Creek Southern...

  2. 42 CFR 406.11 - Individual age 65 or over who is not eligible as a social security or railroad retirement...

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 2 2010-10-01 2010-10-01 false Individual age 65 or over who is not eligible as a social security or railroad retirement benefits beneficiary, or on the basis of government employment. 406.11 Section 406.11 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH...

  3. 42 CFR 406.10 - Individual age 65 or over who is entitled to social security or railroad retirement benefits, or...

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 2 2010-10-01 2010-10-01 false Individual age 65 or over who is entitled to social security or railroad retirement benefits, or who is eligible for social security benefits. 406.10 Section 406.10 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN...

  4. 20 CFR 404.1401 - What is the interrelationship between the Railroad Retirement Act and the Old-Age, Survivors and...

    Science.gov (United States)

    2010-04-01

    ... Railroad Retirement Act and the Old-Age, Survivors and Disability Insurance Program of the Social Security Act? 404.1401 Section 404.1401 Employees' Benefits SOCIAL SECURITY ADMINISTRATION FEDERAL OLD-AGE, SURVIVORS AND DISABILITY INSURANCE (1950- ) Interrelationship of Old-Age, Survivors and Disability...

  5. 77 FR 47921 - Pecos Valley Permian Railroad, L.L.C. d/b/a Pecos Valley Southern Railway Company-Lease Exemption...

    Science.gov (United States)

    2012-08-10

    ... Company--Lease Exemption--Pecos Valley Southern Railway Company Pecos Valley Permian Railroad, L.L.C. d/b... exemption pursuant to 49 CFR 1150.31 to lease from the Pecos Valley Southern Railway Company (PVS) and... states that the lease agreement between PVS and PVR will not contain any interchange commitments....

  6. 上海市有轨电车系统布局规划研究%Research on Shanghai Railroad Car System Distribution Planning

    Institute of Scientific and Technical Information of China (English)

    张安锋; 李东屹; 马士江

    2014-01-01

    In modern society, the railroad car system plays a role in the rail transport system. Focusing on the railroad car system, the paper analyzes its development history and requirements, functional orientation, technical features, and also its adaptability in urban area. Besides, combining with case studies both inside China and abroad and also according to the idea “3 merge into 1” of the Shanghai Prospective Planning of Rail Transport Network, the planning of railroad car in Shanghai is researched. Thirdly, associated with the railroad network planning in Songjiang, Jiading and Nanqiao new cities, the paper analyzes the development orientation and scale of railroad car system in public transport system in new cities.%现代有轨电车系统是轨道交通系统的组成部分。通过对现代有轨电车的发展历程、发展需求、功能定位以及技术性能特征和在城市中的适应性分析,结合国内外应用案例分析,按照上海市远景轨道交通网络发展规划提出的“三网融合”的规划理念,对全市现代有轨电车布局规划进行研究。并以松江新城、嘉定新城和南桥新城现代有轨电车网络规划和示范线工作为契机,对现代有轨电车在新城公共交通体系中的发展导向和发展规模进行分析。

  7. Reconstruction of railroads at Klaipéda da National Seaport: Local Health Impact Assessment Case in Lithuania

    Directory of Open Access Journals (Sweden)

    Ingrida Zurlytè

    2007-09-01

    Full Text Available Background: Introduction of health impact assessment (HIA as a national legal requirement for planned economic activity projects in 2002 and the further development of related procedures and methodological requirements has boosted the number of HIAs carried out both as an integrated part of environmental impact assessment (EIA procedures as well as an independent activity. Most of HIAs have been conduct for local projects. The HIA for the reconstruction of the southern section of the railroads in Klaip da National Seaport is one of the local HIAs in Lithuania carried out as an independent procedure. Methods: The HIA for the reconstruction of the southern section of the railroads in Klaipda National Seaport was carried out following the national legal procedure for the cases not foreseen in the Law on Environmental Impact Assessment of Planned Economic Activity and the national HIA methodological regulations. The HIA included a literature review, analysis of related technical documentation, data on existing and estimated air pollution and environmental noise levels and possible health consequences, analysis of local demographic and health statistics; interviews with the residents living in proximity of the planned activity, analysis of public complaints on existing activities at Klaip da National Seaport, site visit and round table discussions with the proponent of the planned activity, planning company and representatives of the public health authority. The standard or intermediate type of perspective HIA was applied. Results: The HIA report has pointed out noise, vibration, ambient air pollution, psychological factors as related to possible negative impact on health of residents living in the mostly exposed locations. Interviews with inhabitants living in proximity of the planned activity have shown that majority of them knew nothing about the reconstruction plans. Recommendations were provided in the report how to minimise

  8. The radial hardness-profile and the microstructure of railroad car axle materials treated by surface rolling, determined by novel examination methods

    International Nuclear Information System (INIS)

    Surface rolling is a cold-working technique used for hardening the surface of steel and ductile cast iron components. This process increases the surface hardness and improves the fatigue properties of components, so it is commonly used to treat railroad car wheel axles. The present paper examines the influence of this surface strengthening technique on the microstructure of the railroad car wheel axle material by hardness tests, optical microscopy (OM), and other novel examination methods, such as scanning electron microscopy (SEM), X-ray line profile analysis (XLPA), non-destructive magnetic evaluation (NDE) and automated electron backscatter diffraction (EBSD). The results show that surface rolling causes an increase in hardness down to a depth of ∼10 mm. It is also shown, that the increase in hardness is not due to grain refinement or change in grain morphology; thus it is likely to be caused by an increase in dislocation density

  9. The radial hardness-profile and the microstructure of railroad car axle materials treated by surface rolling, determined by novel examination methods

    Energy Technology Data Exchange (ETDEWEB)

    Berecz, Tibor, E-mail: berecz@eik.bme.hu [Department of Materials Science and Engineering, Budapest University of Technology and Economics, 1111 Budapest, Bertalan Lajos utca 7 (Hungary); Balogh, Levente, E-mail: levente@metal.elte.hu [Department of Materials Physics, Eötvös Loránd University, 1117 Budapest, Pázmány Péter sétány 1/a (Hungary); Mészáros, István, E-mail: meszaros@eik.bme.hu [Department of Materials Science and Engineering, Budapest University of Technology and Economics, 1111 Budapest, Bertalan Lajos utca 7 (Hungary); Steinbach, Ágoston, E-mail: sa984@hszk.bme.hu [Department of Materials Science and Engineering, Budapest University of Technology and Economics, 1111 Budapest, Bertalan Lajos utca 7 (Hungary)

    2014-01-13

    Surface rolling is a cold-working technique used for hardening the surface of steel and ductile cast iron components. This process increases the surface hardness and improves the fatigue properties of components, so it is commonly used to treat railroad car wheel axles. The present paper examines the influence of this surface strengthening technique on the microstructure of the railroad car wheel axle material by hardness tests, optical microscopy (OM), and other novel examination methods, such as scanning electron microscopy (SEM), X-ray line profile analysis (XLPA), non-destructive magnetic evaluation (NDE) and automated electron backscatter diffraction (EBSD). The results show that surface rolling causes an increase in hardness down to a depth of ∼10 mm. It is also shown, that the increase in hardness is not due to grain refinement or change in grain morphology; thus it is likely to be caused by an increase in dislocation density.

  10. Shallowly talking about evolving of automatic railroad track scale and load cell%浅谈动态轨道衡与传感器的拔展过程

    Institute of Scientific and Technical Information of China (English)

    叶庆泰

    2012-01-01

    This article introduces evolving of load cell in automatic electronic railroad track scale and the requirements to load cell of automatic railroad track scale.%本文介绍了动态电子轨道衡中称重传感器的演变和动态电子轨道衡对其称重传感器的要求。

  11. 浅析铁路运输企业运输收入的管理%The Management of Transport Revenue of Railroad Transport Businesses

    Institute of Scientific and Technical Information of China (English)

    潘晓红

    2012-01-01

    To improve the transport revenue management is the requirement of the healthy development of railroad transport businesses and the financial management, and is the basic approach to prevent risks effectively. Targeting on the weak internal control of passenger transport, the poor management of freight transport, and the inaccurate revenue statements, railroad transport businesses should improve the revenu~ management, the internal control of income, and the management of transport income bills to increase the railroad economic benefit.%完善运输收入管理是实现铁路运输企业持续健康发展以及企业财务管理的需要,也是有效防范各种风险的基本手段。针对客运内控不严、货运管理不善、收入列报不准等问题,铁路运输企业应完善运输收入的管理以及运输收入票据及进款的内部控制,从而提高铁路经济效益。

  12. High-altitude gastrointestinal bleeding: An observation in Qinghai-Tibetan railroad construction workers on Mountain Tanggula

    Institute of Scientific and Technical Information of China (English)

    Tian-Yi Wu; Shou-Quan Ding; Jin-Liang Liu; Jian-Hou Jia; Rui-Chen Dai; Dong-Chun Zhu; Bao-Zhu Liang; De-Tang Qi; Yong-Fu Sun

    2007-01-01

    AIM: To investigate the gastrointestinal bleeding (GIB) in people from lowland to high altitude and in workers on Mountain Tanggula and its causes as well as treatment and prophylaxis.METHODS: From 2001 to October 2003, we studied GIB in 13 502 workers constructing the railroad on Mountain Tanggula which is 4905 m above the sea level. The incidence of GIB in workers at different altitudes was recorded. Endoscopy was performed when the workersevacuated to Golmud (2808 m) and Xining (2261 m).The available data on altitude GIB were analyzed.RESULTS: The overall incidence of GIB was 0.49% in 13502 workers. The incidence increased with increasing altitude. The onset of symptoms in most patients was within three weeks after arrival at high altitude. Bleeding manifested as hematemesis, melaena or hematochezia,and might be occult. Endoscopic examination showed that the causes of altitude GIB included hemorrhage gastritis, gastric ulcer, duodenal ulcer, and gastric erosion. Experimental studies suggested that acute gastric mucosal lesion (AGML) could be induced by hypoxic and cold stress, which might be the pathogenesis of altitude GIB. Those who consumed large amount of alcohol, aspirin or dexamethasone were at a higher risk of developing GIB. Persons who previously suffered from peptic ulcer or high-altitude polycythemia were also at risk of developing GIB. Early diagnosis, evacuation, and treatment led to early recovery.CONCLUSION: GIB is a potentially life threatening disease, if it is not treated promptly and effectively. Early diagnosis, treatment and evacuation lead to an early recovery. Death due to altitude GIB can be avoided if early symptoms and signs are recognized.

  13. Streamlined Approach for Environmental Restoration (SAFER) Plan for Corrective Action Unit 539: Area 25 and Area 26 Railroad Tracks, Nevada Test Site, Nevada, Revision 0

    Energy Technology Data Exchange (ETDEWEB)

    Mark Krauss

    2010-06-01

    This Streamlined Approach for Environmental Restoration (SAFER) Plan addresses the actions needed to achieve closure for Corrective Action Unit (CAU) 539, Areas 25 and 26 Railroad Tracks, as identified in the Federal Facility Agreement and Consent Order (FFACO). A modification to the FFACOwas approved in May 2010 to transfer the two Railroad Tracks corrective action sites (CASs) from CAU 114 into CAU539. The two CASs are located in Areas 25 and 26 of the Nevada Test Site: • 25-99-21, Area 25 Railroad Tracks • 26-99-05, Area 26 Railroad Tracks This plan provides the methodology for field activities needed to gather the necessary information for closing the two CASs. There is sufficient information and process knowledge from historical documentation and investigations of similar sites regarding the expected nature and extent of potential contaminants to recommend closure of the CAU 539 Railroad Tracks CASs using the SAFER process. Additional information will be obtained by conducting a field investigation before selecting the appropriate corrective action for each CAS. The results of the field investigation should support a defensible recommendation that no further corrective action is necessary. If it is determined that complete clean closure cannot be accomplished during the SAFER, then a hold point will have been reached and the Nevada Division of Environmental Protection (NDEP) will be consulted to determine whether the remaining contamination will be closed under the alternative corrective action of closure in place with use restrictions. This will be presented in a closure report that will be prepared and submitted to the NDEP for review and approval. The sites will be investigated based on the data quality objectives (DQOs) developed on December 14, 2009, by representatives of U.S.Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office; Navarro Nevada Environmental Services, LLC (NNES); and National Security Technologies

  14. 古交矿区专用铁路沿线噪声的防治对策%Countermeasures on Special Railroad Noise Prevention and Control

    Institute of Scientific and Technical Information of China (English)

    霍雪萍

    2009-01-01

    The author carries on the investigation to the noise pollution situation along the special railroad to the Gujiao mining area and carries on the analysis to the noise mechanism, startes from the project measure and the management measure, proposes the noise prevention and control countermeasure.%对古交矿区专用铁路沿线噪声污染情况进行了调查,并对噪声机理进行了分析,从工程措施和管理措施入手,提出了噪声防治对策.

  15. A 'GREEN' RAILROAD?

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Environmental issues may dictate the success of the Qinghai-Tibet Railway "The environmental requirements in the construction of the Qinghai-Tibet Railway have basically been fulfilled, except for the environmental restoration work in a handful of sections,"

  16. Molecular insights on the evolution of the lateral and head lantern luciferases and bioluminescence colors in Mastinocerini railroad-worms (Coleoptera: Phengodidae).

    Science.gov (United States)

    Arnoldi, Frederico G C; da Silva Neto, Antonio Joaquim; Viviani, Vadim R

    2010-01-01

    Among bioluminescent beetles of Elateroidea superfamily, railroad-worms (Phengodidae) produce the widest range of colors, from green to red, using the same luciferin-luciferase system. Members of the Mastinocerini tribe display additional unique cephalic organs that emit red-shifted light, with Phrixothrix railroad-worms being the most dramatic cases with head lanterns emitting red light. Although the luciferases from the head lanterns of Phrixothrix hirtus and from the lateral lanterns of P. vivianii were previously cloned, the luciferases from both lanterns of the same species were not cloned yet. Therefore the origin and evolution of head and lateral lanterns luciferases in Phengodidae remains unknown. In the present work, we cloned by PCR the cDNA for lateral lantern luciferases of three Mastinocerini species: Phrixothrix hirtus, Brasilocerus sp(3). and Taximastioncerus sp. The results suggest that the head and lateral lanterns luciferases in Mastinocerini are coded by paralogous genes, and that the ancestral luciferase in the Phengodinae subfamily produced green bioluminescence. The evolutionary history of bioluminescence colors within Phengodinae is discussed.

  17. 应用冷却路基原理建设青藏铁路%Constructing of the Qinghai-Tibet Railroad Using the Principle of Cooling the Roadbed

    Institute of Scientific and Technical Information of China (English)

    程国栋

    2005-01-01

    More than half of the total length of the Qinghai-Tibet Railroad (QTR) traverses warm (0 to-1 ℃) permafrost areas, and about 40% of its total length is in ice-rich permafrost areas. The construction of the QTR also must consider the impacts of climatic warming along the QTR during the next 50~100 years. The latest projection indicates a warming of 2.2 to 2.6 ℃ on the Qinghai-Tibet Plateau (QTP) by the year 2050. Therefore, the key to the successful construction of the QTR is to protect permafrost from being thawed. Although railroad construction in permafrost areas has had a history of more than 100 years, the troubled sections of the railroads in permafrost areas have been greater than 30% of their total length. Based on the experiences and lessons learned from the road construction in permafrost areas, both in China and abroad, the author proposes that the principle of"active cooling"of railroad roadbed by lowering permafrost temperatures should be used in designing QTR, rather than that of"passive protection" of permafrost through increasing thermal resistance of roadway, such as increasing fill thickness and/or using insulative materials. This is especially important for the road sections in warm, ice-rich permafrost. In addition, this paper proposes several methods for"cooling the roadbed" by controlling radiation, convection and conduction through modifying roadway structure and using different fill materials.

  18. Closure Report for Corrective Action Unit 539: Areas 25 and 26 Railroad Tracks Nevada National Security Site, Nevada with ROTC-1, Revision 0

    Energy Technology Data Exchange (ETDEWEB)

    Mark Kauss

    2011-06-01

    This Closure Report (CR) presents information supporting the closure of Corrective Action Unit (CAU) 539: Areas 25 and 26 Railroad Tracks, Nevada National Security Site, Nevada. This CR complies with the requirements of the Federal Facility Agreement and Consent Order (FFACO) that was agreed to by the State of Nevada; U.S. Department of Energy (DOE), Environmental Management; U.S. Department of Defense; and DOE, Legacy Management. The corrective action sites (CASs) within CAU 539 are located within Areas 25 and 26 of the Nevada National Security Site. Corrective Action Unit 539 comprises the following CASs: • 25-99-21, Area 25 Railroad Tracks • 26-99-05, Area 26 Railroad Tracks The purpose of this CR is to provide documentation supporting the completed corrective actions and provide data confirming that the closure objectives for CASs within CAU 539 were met. To achieve this, the following actions were performed: • Reviewed documentation on historical and current site conditions, including the concentration and extent of contamination. • Conducted radiological walkover surveys of railroad tracks in both Areas 25 and 26. • Collected ballast and soil samples and calculated internal dose estimates for radiological releases. • Collected in situ thermoluminescent dosimeter measurements and calculated external dose estimates for radiological releases. • Removed lead bricks as potential source material (PSM) and collected verification samples. • Implemented corrective actions as necessary to protect human health and the environment. • Properly disposed of corrective action and investigation wastes. • Implemented an FFACO use restriction (UR) for radiological contamination at CAS 25-99-21. The approved UR form and map are provided in Appendix F and will be filed in the DOE, National Nuclear Security Administration Nevada Site Office (NNSA/NSO), Facility Information Management System; the FFACO database; and the NNSA/NSO CAU/CAS files. From November 29

  19. Effects of the earthquake of March 27, 1964, on the Alaska Railroad: Chapter D in The Alaska earthquake, March 27, 1964: effects on transportation, communications, and utilities

    Science.gov (United States)

    McCulloch, David S.; Bonilla, Manuel G.

    1970-01-01

    In the 1964 Alaska earthquake, the federally owned Alaska Railroad sustained damage of more than $35 million: 54 percent of the cost for port facilities; 25 percent, roadbed and track; 9 percent, buildings and utilities; 7 percent, bridges and culverts; and 5 percent, landslide removal. Principal causes of damage were: (1) landslides, landslide-generated waves, and seismic sea waves that destroyed costly port facilities built on deltas; (2) regional tectonic subsidence that necessitated raising and armoring 22 miles of roadbed made susceptible to marine erosion; and (3), of greatest importance in terms of potential damage in seismically active areas, a general loss of strength experienced by wet waterlaid unconsolidated granular sediments (silt to coarse gravel) that allowed embankments to settle and enabled sediments to undergo fiowlike displacement toward topographic depressions, even in fiat-lying areas. The term “landspreading” is proposed for the lateral displacement and distension of mobilized sediments; landspreading appears to have resulted largely from liquefaction. Because mobilization is time dependent and its effects cumulative, the long duration of strong ground motion (timed as 3 to 4 minutes) along the southern 150 miles of the rail line made landspreading an important cause of damage. Sediments moved toward natural and manmade topographic depressions (stream valleys, gullies, drainage ditches, borrow pits, and lakes). Stream widths decreased, often about 20 inches but at some places by as much as 6.5 feet, and sediments moved upward beneath stream channels. Landspreading toward streams and even small drainage ditches crushed concrete and metal culverts. Bridge superstructures were compressed and failed by lateral buckling, or more commonly were driven into, through, or over bulkheads. Piles and piers were torn free of superstructures by moving sediments, crowded toward stream channels, and lifted in the center. The lifted piles arched the

  20. 铁路企业社会责任信息传播现状分析%Current Analysis of Railroad Corporate's CSR Communication Information

    Institute of Scientific and Technical Information of China (English)

    张霁欣

    2009-01-01

    The paper has made a research on Wuhan Railroad Company (WRC). It analyses the WRC's CSR communica-tion information from 2006 to 2008 based on the G3 framework to find the disadvantages of WRC. The paper suggests that, al-though WRC has a good foundation on CSR communication by years' development, it still has some disadvantages in the organi-zational management, information items and medias selection.%以铁道部武汉铁路局(以下简称武汉局)为例.基于国际通用的G3标准体系以及整合营销传播分析框架,对武汉局2006年1月-2008年8月期间CSR信息传播情况进行统计分析,总结现状与不足.从企业现状来看,武汉局通过多年发展在CSR信息传播方面已具有一定基础,但在传播的组织管理、信息内容与方法方面还有一定不足.

  1. Formerly utilized MED/AEC Sites Remedial Action Program. Radiological survey of the Pennsylvania Railroad Landfill Site, Burrell Township, Pennsylvnia. Final Report

    International Nuclear Information System (INIS)

    A radiological survey was conducted at the Pennsylvania Railroad Landfill Site in Burrell Township, Pennsylvania. In 1956 and 1957, approximately 11,600 tons of radioactive material was dumped at this site and was apparently scattered over an area of loss than 10 acres. The survey included measurement of the following: external gamma radiation at 1 m above the surface and at the surface throughout the site; beta--gamma dose rates at 1 cm from the surface throughout the site; concentrations of 226Ra and 238U in surface and subsurface soil on the site; concentrations of 210Pb, 226Ra, 230Th, and 238U in subsurface water on the site and in surface water on and near the site; and the extent of atmospheric transport of 222Rn and progeny from the site. The general location of the residues transported to the site, except possibly small, scattered quantities of materials, was determined from the survey. In some areas on the site, beta--gamma dose rates of 1 cm from the surface were above pertinent guidelines.Analyses of sediment from water samples taken from drainage areas near the site indicate that some radioactive material is being carried from the site by surface run-off. Results of this survey indicate that there is no significant atmospheric transport of 222Rn from the site

  2. A comparison of in-situ aircraft measurements of carbon dioxide to GOSAT data measured over Railroad Valley playa, Nevada, USA

    Directory of Open Access Journals (Sweden)

    J. M. Tadić

    2012-08-01

    Full Text Available In this paper we report vertical profiles of CO2 measured with a cavity ring-down spectrometer (CRDS, Picarro, Inc., 2301-m on a research aircraft from near ground level to 8 km above mean sea level (a.m.s.l.. The airborne platform employed in this study is an Alpha Jet aircraft operated from NASA Ames Research Center. Flights were undertaken to Railroad Valley, Nevada, USA, to coincide with overpasses of the Greenhouse Gases Observing Satellite (GOSAT. Ground based CO2 was simultaneously measured using CRDS, also at the time and location of the airborne and satellite measurements. Results of three GOSAT coordinated aircraft profiles and ground based measurements in June 2011 are presented and discussed in this paper. The accuracy of the CO2 measurements has been determined based upon laboratory calibrations (WMO traceable standard and pressure/temperature flight simulations in a test chamber. The 2-σ error bars for the CO2 data presented here are ± 0.4 ppm. Our column CO2 measurements, which include about 85% of the tropospheric mass, are extrapolated, using two different techniques, to include the remainder of the tropospheric and stratospheric CO2. The data are then analyzed using the ACOS (Atmospheric CO2 observations from space; JPL algorithm used to analyze XCO2 from GOSAT data averaging kernels. ACOS version 2.9 is used to interpret the GOSAT data in a collaborative effort between JPL and the GOSAT team. Column averaged CO2, XCO2, measured by GOSAT and analyzed from our data ranged from 388.1 to 390.5 ppm. Values of XCO2 determined from our Alpha Jet measurements and from the GOSAT on three overflight days agree within 1 ppm or better (<0.3%.

  3. The total column of CO2 and CH4 measured with a compact Fourier transform spectrometer at NASA Armstrong Flight Research Center and Railroad Valley, Nevada, USA

    Science.gov (United States)

    Kawakami, S.; Shiomi, K.; Suto, H.; Kuze, A.; Hillyard, P. W.; Tanaka, T.; Podolske, J. R.; Iraci, L. T.; Albertson, R. T.

    2014-12-01

    The total columns of carbon dioxide (XCO2) and methane (XCH4) were measured with a compact Fourier transform spectrometer (FTS) at NASA Armstrong Flight Research Center (AFRC) and Railroad Valley, Nevada, USA (RRV) during a vicarious calibration campaign in June 2014. The campaign was performed to estimate changes in the radiometric response of the Thermal and Near Infrared Sensor for carbon Observations Fourier Transform Spectrometer (TANSO-FTS) and the Cloud and Aerosol Imager (TANSO-CAI) aboard Greenhouse gases Observing SATellite (GOSAT). TANSO-FTS measures spectra of radiance scattered by the Earth surface with high- and medium-gain depending on the surface reflectance. At high reflectance areas, such as deserts over north Africa and Australia, TANSO-FTS collects spectra with medium-gain. There was differences on atmospheric pressure and XCO2 retrieved from spectra obtained between high-gain and medium-gain. Because the retrieved products are useful for evaluating the difference of spectral qualities between high- and medium-gain, this work is an attempt to collect validation data for spectra with medium-gain of TANSO-FTS at remote and desert area with a compact and medium-spectral resolution instrument. As a compact FTS, EM27/SUN was used. It was manufactured and newly released on April 1, 2014 by Bruker. It is robust and operable in a high temperature environment. It was housed in a steel box to protect from dust and rain and powered by Solar panels. It can be operated by such a remote and desert area, like a RRV. Over AFRC and RRV, vertical profiles of CO2 and CH4 were measured using the Alpha Jet research aircraft as part of the Alpha Jet Atmospheric eXperiment (AJAX) of ARC, NASA. The values were calibrated to standard gases. To make the results comparable to WMO (World Meteorological Organization) standards, the retrieved XCO2 and XCH4 values are divided by a calibration factor. This values were determined by comparisons with in situ profiles measured by

  4. Who are more at risk for acute mountain sickness: a prospective study in Qinghai-Tibet railroad construction workers on Mt.Tanggula

    Institute of Scientific and Technical Information of China (English)

    WU Tian-yi; DING Shou-quan; LIU Jin-liang; JIA Jian-hou; CHAI Zuo-chun; DAI Rui-chen

    2012-01-01

    Background It is important to determine the incidence of acute mountain sickness (AMS) among workers at altitudes between 3500 m and 5000 m on Mt.Tanggula during the construction of the Qinghai-Tibet railroad.This study explored the risk factors predisposing workers to developing AMS and attempted to develop more effective ways of preventing and treating AMS.Methods A total of 11 182 workers were surveyed by completing twice daily a Lake Louise questionnaire,and a score ≥3 indicated AMS.The contributing risk factors were assessed for at least 2 months for the duration of the study in the years from 2001 to 2003.A risk model was developed by multiple Logistic regression.Standard statistical methods were used to analyze data.Results AMS occurred in 56% of workers working at high altitudes on Mt.Tanggula.The incidence of AMS increased with increasing altitude.Rapid ascent to an altitude above 3500 m,sea-level or lowland newcomers,young people under 25 years of age,heavy physical exertion,obese person,and arterial oxygen saturation (SaO2) below 80% were independent AMS risk factors.No significant association was found between AMS and sex or taking Rhodiola.Medical education contributed to an early diagnosis of AMS.Conclusions This study used the Lake Louise scoring system suggesting that it is a well-validated standard for field evaluation of AMS and for making an early diagnosis.These studies have described many variables regarding risk factors for the development of AMS.Risk factors which can be modified should be attended to,and the physicians should carry out check-ups and tests to identify subjects who are more at risk.Prevention consists in continuous gradual ascent,medical education,and prompt descent to avoid progression in patients with serious AMS.It is most important to effectively control the risk factors of AMS.

  5. Model Railroading and Computer Fundamentals

    Science.gov (United States)

    McCormick, John W.

    2007-01-01

    Less than one half of one percent of all processors manufactured today end up in computers. The rest are embedded in other devices such as automobiles, airplanes, trains, satellites, and nearly every modern electronic device. Developing software for embedded systems requires a greater knowledge of hardware than developing for a typical desktop…

  6. Teale Railroads and miscellaneous transportation

    Data.gov (United States)

    California Department of Resources — California Spatial Information System (CaSIL) is a project designed to improve access to geo-spatial and geo-spatial related data information throughout the state...

  7. COMPOSITE SOLUTIONS IN RAILROAD ENGINEERING

    Directory of Open Access Journals (Sweden)

    Panfilova Marina Ivanovna

    2012-10-01

    Full Text Available Present-day methods of recovery of used wooden railway ties, including burial, chemical neutralization, gasification and subsequent burning, utilization in the capacity of composite materials, are expensive and unsafe for the environment. The authors propose a new method of their utilization. Ash generated in the course of their burning may replace a portion of cement in composite solutions and act as an additive to grouting mortars designated for the filling of the annulus space of manifold tunnels. The chemical composition of the ash was identified by the x-ray method applied to three samples taken during various periods of time from out of a dry-type dust collector. The level of human health/environmental hazard of the ash is based on its chemical composition. Changes in the rheological properties of composite solutions that contained concrete fractions, various ratios of ash, and 5% of liquid glass were studied in the course of the research. The experiments have proven that in the event of replacement of 20% of cement by ash, the strength of the composite solution is approximately the same as the one of the benchmark sample; therefore, this ash content ratio is deemed acceptable. The finding demonstrate that the ash has no toxic effect, and the ecological safety of this solution is thus confirmed. The authors have proven that 20% of cement may be replaced by the ash generated in the course of burning of waste railway ties.

  8. Railroads and Nodes, TIGER 2000

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — TIGER, TIGER/Line, and Census TIGER are registered trademarks of the Bureau of the Census. The Redistricting Census 2000 TIGER/Line files are an extract of selected...

  9. DISTRIBUTING CHARACTER AND DISPOSING PRINCIPLE OF GEOLOGIC HAZARDS ALONG CHONGQING-HUAIHUA RAILROAD%渝怀线地质灾害发育特征及处理原则

    Institute of Scientific and Technical Information of China (English)

    苟定才; 黄润秋; 等

    2001-01-01

    重点介绍渝怀铁路线地质灾害发育分布特征,主要灾害类型包括滑坡、崩坡积层、危岩落石、顺层及软质岩高边坡、岩溶突水、地表水漏失、水库坍岸、软土、膨胀土和煤层瓦斯等,在总结铁路行业对整治地质灾害的经验教训基础上,针对渝怀线的地质灾害提出相应的处理原则,即针对大型地质灾害和地质灾害集中发育地段,采取绕避的方法;无法绕避地段,则采用相应的工程措施。%The Chongqing-Huaihua railway is one of the main railroads of road network in the plan of western exploitation being put in force. The whole road, 624.523 km, goes through all layers from Proterozoic Group to Quaternary (except Carboniferous layer), which are mainly made up of classic rocks, soluble rocks, epimetamorphic rocks and loose sediments. The main geologic structure through which the railway goes is a fold belt being made up of a set of north-north east bundle of fold. The geologic hazards in the Chongqing-Huaihua railway are characterized by section-developing. They include slides, collapse-sloping deposits, bedding and flexible rock slopes, inburst of karst water, leakage of surface water, collapsing of reservoir bank, soft-soil, expanding-soil, gas from coal seams. Based on the experience and lesson of treating with geologic hazards in railroad industry, the authors put forward the principle that different disposing measures are taken according to different geologic hazards in the Chongqing-Huaihua railroad. For example, the authors try their best to avoid sections which develop lots of big geologic hazards. If the road must go through these sections, the related engineering measures ought to be taken.

  10. Three Dimensional Analysis of the Final Design of Pier Extensions and West Guide Wall to Mitigate Local Scour Risk at the BNSF Railroad Bridge Downstream of the Prado Dam Supplemental Report

    Energy Technology Data Exchange (ETDEWEB)

    Lottes, S. A. [Argonne National Lab. (ANL), Argonne, IL (United States); Sinha, N. [Argonne National Lab. (ANL), Argonne, IL (United States); Bojanowski, C. [Argonne National Lab. (ANL), Argonne, IL (United States); Kerenyi, K. [Turner-Fairbank Highway Research Center, McLean, VA (United States); Sharp, Jeremy [U.S. Army Corps of Engineers, Vicksburg, MI (United States), Coastal and Hydraulics Lab

    2016-06-01

    This report is a supplement to a previous report [ref] covering optimization of wedge shaped pier extensions to streamline large bluff body piers as a local scour countermeasure for the Burlington Northern and Santa Fe (BNSF) Railroad Bridge over the Santa Ana River downstream of Prado Dam in Riverside County, CA. The optimized design was tested in a 1/30 scale physical model at U.S. Army Engineer Research and Development Center (ERDC) in Vicksburg, MS, and the optimized design was used as the base for the construction design. Constructability issues having to do with both materials and site conditions including access underneath the BNSF bridge yielded a construction design that required making the pier extensions wider and either moving the western curve of the west guide wall upstream or changing its geometry.

  11. Sleep quality, mental health status and its related factors in railroad workers: a cross-sectional study%铁路职工睡眠质量与心理健康状况及相关因素分析

    Institute of Scientific and Technical Information of China (English)

    董玉军; 刘连启; 吴琼; 吕传爱; 窦怀洲; 任显峰; 党同梅; 李伟; 刘长征

    2008-01-01

    Objective To investigate the sleep quality,mental health status and correlates among railroad workers.Methods A cross-sectional epidemiological study was conducted among a representative sample of railroad workers who worked within the precinct of Jinan Railroad Branch Bureau.Pittsburgh Sleep Quality Index (PSQi),Sleep Behavior and Quality Scale(SBQS),Zung's Self-Rating Depression Scale(SDS),Zung's Self-Rating Anxiety Scale(SAS),Symptom Checklist-90(SCL-90),Life Event Scale(LES),Simple Coping Style Questionnaire,Eysenck Personality Questionnaire(EPQ),Social Support Rating Scale(SSRS)and self-designed demographic questionnaires were employed in the study.Results The prevalence of poorer sleep quality was 21.9%,and there was no significant differences between males and females(23.2%vs 14.6%,P=0.18).Sleep quality was significantly correlated with anxiety,depression,being locomotive driver,family economic status,etc(P<0.05~0.01).Railroad workers had higher SCL-90 factor scores in somatization dimension,anxiety dimension,hostility dimension,phobic dimension,paranoid dimension and psychoticism dimension,as well as more positive items than the norms(P<0.05~0.01).The mental health status was significantly correlated with sleep quality,mood stability,negative life events,personality,coping style,and job satisfaction(P<0.05~0.01).Conclusion The sleep quality and mental health status of railroad workers were associated with multiple factors.%目的 探讨铁路职工的睡眠质量与心身健康状况及其相关因素.方法 采用分层整群随机抽样的方法,抽取302名济南铁路分局铁路职工.对所抽样本进行匹兹堡睡眠质量指数(PSQI)、睡眠行为与睡眠质量评定量表(SBQS)、抑郁自评量表(SDS)、焦虑自评量表(SAS)、症状自评量表(SCL-90)、生活事件量表(LES)、简易应对方式问卷、艾森克个性问卷(EPQ)、社会支持评定量表测评及一般项目调查表的调查.结果 铁路职工中睡眠

  12. Stochastic Dynamic Response Analysis of Spar-Type Wind Turbines with Catenary or Taut Mooring Systems

    OpenAIRE

    Karimirad, Madjid

    2011-01-01

    Floating wind turbines can be the most practical and economical way to extract the vast offshore wind energy resources at deep and intermediate water depths. The Norwegian Ministry of Petroleum and Energy is strongly committed to developing offshore wind technology that utilises available renewable energy sources. As the wind is steadier and stronger over the sea than over land, the wind industry recently moved to offshore areas. Analysis of the structural dynamic response of offshore wind tu...

  13. Effect of flow on corrosion in catenary risers and its corrosion inhibitor performance

    Energy Technology Data Exchange (ETDEWEB)

    Ferreira, Pedro Altoe; Magalhaes, Alvaro Augusto Oliveira; Silva, Jussara de Mello [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil); Kang, Cheolho; More, Parimal P. [Det Norske Veritas (DNV), Oslo (Norway)

    2009-07-01

    In oil and gas production, multiphase flow is often encountered and a range of different flow patterns can be experienced in pipelines. The flow regime transition and flow characteristics can be changed with the change of pipeline topography, which affects the corrosion and the performance of corrosion inhibitor in these multiphase pipelines. This paper outlines on the effect of inclination on the flow characteristics and their subsequent effect on corrosion rates. Also, this paper presents on the performance of three candidate corrosion inhibitors under severe slugging conditions at low water cut. For the simulation of offshore flow lines and risers, the experiments were carried out in a 44 m long, 10 cm diameter, three different pipeline inclinations of 0, 3 and 45 degrees. Light condensate oil with a viscosity of 2.5 cP at room temperature was used and water cut was 20%. The results indicated that the baseline corrosion rate in 45 degrees showed higher than other inclinations. Each corrosion inhibitor showed a different inhibitor performance. (author)

  14. New tools for steel catenary risers inspection; Novas ferramentas para inspecao de risers tipo SCR

    Energy Technology Data Exchange (ETDEWEB)

    Camerini, Claudio Soligo; Marinho, Carla Alves; Raphael, Fabiana N.; Maia, Carlos [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil); Freitas, Miguel [Pontificia Univ. Catolica do Rio de Janeiro, RJ (Brazil); Lopes, Ricardo Tadeu; Rocha, Henrique [Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia

    2005-07-01

    The Research Center of PETROBRAS and two of the Federal Brazilian Universities, PUC-Rio and UFRJ, have been developing two new projects in order to inspect risers of petroleum production. The first tool is an instrumented pig for profiling internal corrosion, having flexibility under diameter variations and independence related to thickness wall pipeline. The second one is a gammagraphy system remotely operated by ROVs, to be employed in alveoli corrosion and fatigue cracks detection in underwater pipelines. This work shows the trajectory of these two tools, describing laboratory and field tests and the future activities. (author)

  15. 铁路路基雷达探测图像的自动解释技术研究%Technique for automatic interpretation of GPR images of railroad subgrades

    Institute of Scientific and Technical Information of China (English)

    廖立坚; 杨新安; 丁春林

    2009-01-01

    An automatic interpretation algorithm adapted for GPR images from railroad subgrade inspection is designed for massive data analysis, in order to tackle the problem of inadequate functions of the GPR supporting software. First the primary GPR data is processed, including radon transform for eliminating interferences caused by railway sleepers and KL transform in wavelet domain for removing random noise. Then part of radar wavelet is filtered by wavelet transform to display the interfaces and defect positions in railroad subgrade. Next an interface-test algorithm is proposed and the graph of interfaces for judging subgrade subsidence is plotted through tracing the interface position. Finally an expert system is established. All kinds of mud pumping in different localities are stored in defect library and studied by learning a vector quantization network model to obtain the classification rules for judgment of the types of mud pumping. The GPR data for the Shanghai-Nanjing railroad subgrade is processed by using the automatic interpretation algorithm, and the results indicate that it can automatically distinguish the types and positions of the defects, with a up to 90% recognition rate.%针对目前探地雷达随机配套软件功能的不足,为满足铁路路基雷达探测海量数据分析的需要,设计出适合于铁路路基检测图像的自动解释算法.首先对原始资料进行数据处理,采用拉冬变换消除轨枕影响,小波域KL变换消除随机噪声;再根据小波变换设计出反滤波算子滤除部分雷达子波,以突出层面和病害位置;提出层面检测算法,跟踪层面位置实现层面图的绘制,根据层面图判断路基是否下沉;建立专家系统,将不同地区的翻浆冒泥病害类型存入病害库,通过学习向量量化网络模型对其进行学习,得出判决规则,实现翻浆冒泥病害的识别.对铁路沪宁线检测资料进行模拟计算,结果表明:该算法能够自动区分铁路路基中

  16. Cross-calibration of the Terra MODIS, Landsat 7 ETM+ and EO-1 ALI sensors using near-simultaneous surface observation over the Railroad Valley Playa, Nevada, test site

    Science.gov (United States)

    Chander, G.; Angal, A.; Choi, T.; Meyer, D.J.; Xiong, X.; Teillet, P.M.

    2007-01-01

    A cross-calibration methodology has been developed using coincident image pairs from the Terra Moderate Resolution Imaging Spectroradiometer (MODIS), the Landsat 7 (L7) Enhanced Thematic Mapper Plus (ETM+) and the Earth Observing EO-1 Advanced Land Imager (ALI) to verify the absolute radiometric calibration accuracy of these sensors with respect to each other. To quantify the effects due to different spectral responses, the Relative Spectral Responses (RSR) of these sensors were studied and compared by developing a set of "figures-of-merit." Seven cloud-free scenes collected over the Railroad Valley Playa, Nevada (RVPN), test site were used to conduct the cross-calibration study. This cross-calibration approach was based on image statistics from near-simultaneous observations made by different satellite sensors. Homogeneous regions of interest (ROI) were selected in the image pairs, and the mean target statistics were converted to absolute units of at-sensor reflectance. Using these reflectances, a set of cross-calibration equations were developed giving a relative gain and bias between the sensor pair.

  17. Saúde mental e automação: a propósito de um estudo de caso no setor ferroviário Mental health and automation: remarks on a case study in the railroad industry

    Directory of Open Access Journals (Sweden)

    Edith Seligmann-Silva

    1997-01-01

    Full Text Available O propósito deste trabalho é enfocar algumas inter-relações entre Saúde Mental e as transformações contemporâneas do trabalho pelas mudanças técnicas, organizacionais e contextuais. Apresenta algumas características em um estudo de caso. O artigo examina os impactos da situação de trabalho em uma empresa ferroviária sobre controladores e maquinistas de um sistema computadorizado e automatizado. As implicações para a segurança de todo o sistema, inclusive para os passageiros, são também apontadas e discutidas.This article focuses on some relations between mental health and current technical, organganizaizational, and contextual changes in work. The paper presents some features of a case study, examining the impacts of the work situation in a railroad company on traffic controllers and conductors of a computorized, automatedded system. The article also discusses the implications for the safety of the system as a whole, including passengers.

  18. 历史感重构与补全式开发——滇越铁路遗产廊道滇段的遗产保护与旅游开发初探%To Reproduce the History and Comprehensive Development——Heritage Conservation and Tourism Development of Heritage Corridors-The Case of Yunnan-vietnam Railroad

    Institute of Scientific and Technical Information of China (English)

    李沁

    2011-01-01

    滇越铁路在中国近现代史上具有重要意义,各历史时期的发展在铁路及其沿线遗留下了丰富的线形文化景观遗产。目前滇越铁路面临着严峻的保护与改造的压力,通过建立"遗产廊道"以实现滇越铁路历史文化遗产的整体保护与利用,具有重要的理论与现实意义。本文特别对滇越铁路著名的碧色寨车站的历史文化遗产的类型与分布概况,以及遗产的价值进行分析,并提出了开发滇越铁路历史文化遗产廊道应遵循的基本原则、相关的理论依据,并对开发构建的方法进行了论述,提出了对于滇越铁路历史文化遗产廊道开发的设想。%The construction of Yunnan-vietnam Railroad started a very important page in contemporary Chinese history.Since then,developments in different eras left the linear zone with rich cultural heritage sites.Right now demands for both development and preservation again provide the Yunnan-vietnam Railroad with double challenges,to establish the Yunnan-vietnam Railroad heritage corridor could provide a solution for those challenges. This article discusses the well-known Bise Village Vietnam Railway station historical and cultural heritage of the types and distribution profiles,and analysis of the value of heritage.In addition,this article provides the theoretical framework and proposes the basic principles and methods for the development of the Yunnan-vietnam Railroad heritage corridor.

  19. Vibration Comfort Analysis on the Pedestrian Bridge Between East Plaza and West Plaza of Shenzhen North Railroad Station%深圳北站东西广场人行天桥舒适度分析

    Institute of Scientific and Technical Information of China (English)

    孟美莉; 吴兵; 傅学怡

    2012-01-01

    深圳北站东西广场人行天桥位于深圳火车北站站房北侧.针对人行天桥大跨度桥面的振动舒适度问题,建立天桥的整体有限元模型,以IABSE建议的单人步行激励为基础,人行步频1.6~2.4Hz,考虑行人起步相位随机分布,通过多点输入时程分析方法求得结构的加速度响应,并参考ATC给出天桥的人行舒适度性能水准对该天桥进行人行走舒适度分析.分析研究表明该天桥具有适宜的人行舒适度,计算分析找到结构响应较大处,结构设计据此进行了针对性的加强,可更有效地提高其舒适度.%The pedestrian bridge between east plaza and west plaza lies in the north of Shenzhen North Railroad Station. The vibration comfort of large-span bridge is studied. A finite element model of a large-span bridge is established. Based on the single walking force of IABSE (International Association of Bridge and Structural Engineer), with the walking frequency 1.6 ~ 2.4 Hz, a method is proposed considering the random distribution of persona' s initial phase angle. Then the vibration comfort of the bridge is analyzed by a multi-support excitation and time history analysis method. The comfort performance level is given according to ATC (Applied Technology Council). The results show that the bridge has right comfort. The structures which have the maximum response under the crowd-induced loads are strengthened to increase the comfort.

  20. 76 FR 23714 - Railroad Safety Appliance Standards

    Science.gov (United States)

    2011-04-28

    ... technological advancements and ergonomic design standards for new ] car construction and ensuring that modern... ambiguities sometimes arise regarding the placement of safety appliances on these car types. ] Because modern... car type. Problems arise because modern designs are often combinations of multiple car types, and...

  1. North American Atlas - Railroads - Direct Download

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A joint venture involving the National Atlas programs in Canada (Natural Resources Canada), Mexico (Instituto Nacional de Estadística Geografía e Informática), and...

  2. NATIONAL TRANSPORTATION ATLAS DATABASE: RAILROADS 2011

    Data.gov (United States)

    Kansas Data Access and Support Center — The Rail Network is a comprehensive database of the nation's railway system at the 1:100,000 scale or better. The data set covers all 50 States plus the District of...

  3. Experience with system safety approach in railroad technology in Europe and Far East and in aerospace technology; Erfahrungen mit Ansaetzen zur Systemsicherheit in der Bahntechnik in Europa und im Fernen Osten sowie in der Raumfahrttechnik

    Energy Technology Data Exchange (ETDEWEB)

    Schaebe, H. [Technischer Ueberwachungs-Verein InterTraffic GmbH, Koeln (Germany). Inst fuer Software, Elektronik, Bahntechnik

    2000-07-01

    Safety analyses play an important role in assessing railroad technology, especially in the light of the CENELEC Standards EN 50126 and EN 50129. The European approach to system safety is based on the EN standards, whereas in Asia we had to deal with the British DEF-STAN standards. Although the approach is inspired by the European one, in the particular case specific changes have been observed. On the other hand there is a long tradition in space technology which is based in Europe on the PSS standards edited by ESA and the ECSS standards which have followed them. The EN series of standards focuses on the safety case approach. It must be shown that the system is sufficiently safe. Analyses as hazard analyses, Failure Modes, Effects, and Criticality Analyses and Risk analyses are used together with other methods. An important problem is the definition of the target for safety characteristics. We present experience from assessment of driverless people mover systems. On the other hand we have performed analyses for locomotives that have been supplied for the North East Line and the Changi Airport Line of the metro in Singapore. Here, the approach was based on the British DEF-STAN series. In this particular project, however, the approach led to a larger number of exhaustive analyses for a workshop locomotive which is equipped with a driver. In aerospace, often a large number of analyses is necessary. However, the analyses are adopted regarding their number and level of detail depending on the system. As an example, test facilities used at ESTEC (technical centre of the European Space Association) are presented. The experience gained in different areas of technology and in different geographic areas are compared. It will be shown how the EN standards can be used effectively. (orig.) [German] Sicherheitsanalysen spielen eine wichtige Rolle bei der Beurteilung der Bahntechnik, insbesondere im Rahmen der CENELEC Normen EN 50126 und EN 50129. Der Europaeische Ansatz der

  4. Soils of sinkholes on the western macroslope of the southern Urals: Properties, catenary relationships, and regional specificity

    Science.gov (United States)

    Smirnova, M. A.; Gennadiev, A. N.

    2012-06-01

    A series of microcatenas on the slopes of sinkholes were studied on the western macroslope of the southern Urals in the Shulgan-Tash Reserve. The morphological, chemical, physical, and physicochemical characteristics of the soils were analyzed. In order to reveal their regional specificity, the soils of the sinkholes under broadleaved forests in the southern Urals were compared with analogous soils under the northern taiga of the Belomorsk-Kuloi Plateau. It was shown that the full-profile vertically differentiated soils in the upper parts of the microcatenas are replaced by weakly developed and slightly differentiated soils in the lower parts of the microcatenas crossing sinkholes of different diameters in both natural zones.

  5. Optimization approach to unified AC/DC power flow applied to traction systems with catenary voltage constraints

    OpenAIRE

    Coto García, Manuel; Arboleya Arboleya, Pablo; González Morán, Cristina

    2013-01-01

    This paper presents two innovative contributions related to the combined AC/DC power ow in railway power supply systems (RPSS). First, most of the power ow equations (the linear ones) are expressed in a compact matrix form by using graph theory based protocol. Such approach simpli- es the statement of the uni ed power ow problem and allows the train motion to be modeled without varying the system topology. Second, the problem is formulated as an Optimization Pro...

  6. 75 FR 47678 - Northern Plains Railroad, Inc.-Lease Exemption-Soo Line Railroad Company

    Science.gov (United States)

    2010-08-06

    ... that lease: between Bisbee, N.D., and Kramer, N.D., and between Devils Lake, N.D., and Harlow, N.D. See... 1054X (STB served Dec. 28, 2009) (NPR discontinuance on Devils Lake- Harlow line); and Northern Plains R.... 54X) (STB served Oct. 22, 2004) (Soo abandonment of Devils Lake-Harlow line) and Soo Line...

  7. Carros jaula ferroviarios: determinación de un escalón en diámetro para el reacondicionamiento de sus ejes//Railroad cars for sugar cane transportation: determination of a new level of reconditioning to extend its life

    Directory of Open Access Journals (Sweden)

    Luís Orlando Martín-Carvajal

    2012-12-01

    Full Text Available El transporte por ferrocarril de caña constituye una variante económica y Cuba cuenta con la infraestructura vial para este fin. El trabajo tiene el objetivo de incrementar la vida útil del eje de los carros jaula, usados en el transporte de la caña de azúcar, a partir de escalones en diámetro para el reacondicionamiento en sus muñones. Se determinó el diámetro mínimo permisible en la zona del muñónpara las condiciones más severas de explotación a las que se expone el eje. El cálculo se realizó según las normas ferroviarias, basado en las ecuaciones clásicas de resistencia de los materiales, además del cálculo de tensional y deformacional utilizando el Método de Elementos Finitos. Los resultados permiten concluir que la propuesta de establecer el diámetro mínimo de 95,25 mm cumple con las condiciones necesarias de resistencia, obteniéndose un coeficiente de reserva dentro del rango establecido por las normas ferroviarias.Palabras claves: ferrocarril, eje, muñón, elementos finitos._______________________________________________________________________________AbstractThe railway transportation of sugar cane is an economic variant and Cuba has the railroad infrastructure for this purpose. This paper deals with the shaft exploitation period increasing for the sugar cane cars, by obtaining a new reduced dimension in the stump diameter, under the most hard exploitation conditions.The calculation was carried out according to the railway standards, based on the Strength of Materials classic equations. The tensional and deformational level was also obtained, by using the Finite Element Method. The authors conclude that the minimal proposed diameter 95,25 mm responds to the necessary strength conditions, with a security coefficient, according to the required railway standards.Key words: railroad, shaft, stump, finite element.

  8. Geotechnical methods of reinforcement of slopes near railroads

    Institute of Scientific and Technical Information of China (English)

    Vladimir D.Vereskun; Victor A.Yavna

    2015-01-01

    In order to generate well-based design decisions on reinforcement of landslide slopes and road embankment slopes, a system of combined geotechnical analysis of geological conditions is suggested which includes topographic and geo-physical survey, and laboratory studies of soils using infra-red spectroscopy methods. Calculations of slopes' deflected modes are carried out with taking into account elastic and elasto-plastic behavior of soil, and the presence of supporting man-made constructions. Results of the application of the system suggested may be used as criteria for the classification of landslide slopes along permanent ways according to the degree of danger when used for transportation.

  9. 75 FR 38432 - Railroad Safety Appliance Standards, Miscellaneous Revisions

    Science.gov (United States)

    2010-07-02

    ... advancements and ergonomic design standards for new car construction and ensure that modern rail equipment... ambiguities sometimes arise regarding the placement of safety appliances on these car types. Because modern.... Problems arise because modern designs are often combinations of multiple car types, and the design of...

  10. Railroads for Rio Arriba County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  11. Railroads for San Miguel County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  12. Railroads for Hidalgo County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  13. Railroads for Quay County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  14. Railroads for Eddy County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  15. Railroads for Mora County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  16. Acoustic leak-detection system for railroad transportation security

    Science.gov (United States)

    Womble, P. C.; Spadaro, J.; Harrison, M. A.; Barzilov, A.; Harper, D.; Hopper, L.; Houchins, E.; Lemoff, B.; Martin, R.; McGrath, C.; Moore, R.; Novikov, I.; Paschal, J.; Rogers, S.

    2007-04-01

    Pressurized rail tank cars transport large volumes of volatile liquids and gases throughout the country, much of which is hazardous and/or flammable. These gases, once released in the atmosphere, can wreak havoc with the environment and local populations. We developed a system which can non-intrusively and non-invasively detect and locate pinhole-sized leaks in pressurized rail tank cars using acoustic sensors. The sound waves from a leak are produced by turbulence from the gas leaking to the atmosphere. For example, a 500 μm hole in an air tank pressurized to 689 kPa produces a broad audio frequency spectrum with a peak near 40 kHz. This signal is detectable at 10 meters with a sound pressure level of 25 dB. We are able to locate a leak source using triangulation techniques. The prototype of the system consists of a network of acoustic sensors and is located approximately 10 meters from the center of the rail-line. The prototype has two types of acoustic sensors, each with different narrow frequency response band: 40 kHz and 80 kHz. The prototype is connected to the Internet using WiFi (802.11g) transceiver and can be remotely operated from anywhere in the world. The paper discusses the construction, operation and performance of the system.

  17. 75 FR 15484 - Railroad Safety Technology Program Grant Program

    Science.gov (United States)

    2010-03-29

    ... technical and practical success. 4. Key Personnel and Supporting Organization (15%): The technical qualifications and demonstrated experience of key personnel proposed to lead and perform the technical efforts...) Facilitate sharing of PTC communications infrastructure and spectrum. Priority 2: Projects that: (a)...

  18. Integrated geophysical surveys on railroads in permafrost areas

    Institute of Scientific and Technical Information of China (English)

    A Ivanov; S Klepikova; M Shirobokov; A Urusova; A Savin

    2013-01-01

    The zones of thawed ground in the permafrost area are most dangerous from engineer-geologist effect point of view. Detection of such zones, as making forecast of their movement is the main task of engineer-geologist survey been held in railway industry. This paper presents general issues concerning railway construction and operation in permafrost areas. Comprehensive geophysical methods to monitor the development of thawed soils are considered in detail. The main physical parameters which help define permafrost and thawed soil patches are described. Author of current paper pointed out main factors, allowing predicting potential areas of development of thawed grounds. They offered set non-destructive methods:GPR investigations, seismic survey and elec-tric exploration. Whole sets of geophysical data:electric resistivity, velocity of S-wave and P-wave (and their correlation), allow us with high confidence specify characteristics and state of soil either under the line of road, or near it. At the same time the meth-od allows to predict direction of further development of thawed ground area.

  19. Do Birds Avoid Railroads as Has Been Found for Roads?

    Science.gov (United States)

    Wiącek, Jarosław; Polak, Marcin; Filipiuk, Maciej; Kucharczyk, Marek; Bohatkiewicz, Janusz

    2015-09-01

    The construction of railway lines usually has a negative effect on the natural environment: habitats are destroyed, collisions with trains cause deaths, and the noise and vibrations associated with rail traffic disturb the lives of animals. Cases are known, however, where the opposite holds true: a railway line has a positive effect on the fauna in its vicinity. In this study, we attempted to define the influence of a busy railway line on a breeding community of woodland birds. Birds were counted using the point method at 45 observation points located at three different distances (30, 280, 530 m) from the tracks. At each point, we determined the habitat parameters and the intensity of noise. In total, 791 individual birds of 42 species were recorded on the study plot. Even though the noise level fell distinctly with increasing distance from the tracks, the abundance of birds and the number of species were the highest near the railway line. Moreover, insectivorous species displayed a clear preference for the vicinity of the line. The noise from the trains did not adversely affect the birds on the study plot. The environmental conditions created by the edge effect meant that the birds preferred the neighborhood of the tracks: the more diverse habitats near the tracks supplied attractive nesting and foraging niches for many species of birds. Trains passing at clear intervals acted as point sources of noise and did not elicit any negative reactions on the part of the birds; this stands in contrast to busy roads, where the almost continuous flow of traffic in practice constitutes a linear source of noise.

  20. 77 FR 73734 - Railroad Safety Advisory Committee; Notice of Meeting

    Science.gov (United States)

    2012-12-11

    ....gov/ . Please refer to the notice published in the Federal Register on March 11, 1996 (61 FR 9740... Fatigue Management, Rail Failure, and Risk Reduction Working Groups. Status reports will also be provided... National Transportation Safety Board, and the Federal Transit Administration. The diversity of...

  1. 77 FR 52393 - Railroad Safety Advisory Committee; Notice of Meeting

    Science.gov (United States)

    2012-08-29

    .../ . Please refer to the notice published in the Federal Register on March 11, 1996 (61 FR 9740), for... the Critical Incident, Fatigue Management, and Risk Reduction Working Groups. Status reports will also... National Transportation Safety Board, and the Federal Transit Administration. The diversity of...

  2. 76 FR 67020 - Railroad Safety Advisory Committee; Notice of Meeting

    Science.gov (United States)

    2011-10-28

    ... the Electronic Device Distraction, Critical Incident, Track Safety Standards, Dark Territory... meeting of the RSAC is scheduled to commence at 9:30 a.m. on Thursday, December 8, 2011, and will adjourn....gov/ . Please refer to the notice published in the Federal Register on March 11, 1996 (61 FR...

  3. 77 FR 19054 - Railroad Safety Advisory Committee; Notice of Meeting

    Science.gov (United States)

    2012-03-29

    ..., Electronic Device Distraction, and Passenger Safety Working Groups. This agenda is subject to change.... DATES: The meeting of the RSAC is scheduled to commence at 9:30 a.m. on Thursday, April 26, 2012, and....dot.gov/ . Please refer to the notice published in the Federal Register on March 11, 1996 (61 FR...

  4. 76 FR 41555 - Tupelo, Mississippi Railroad Relocation Project

    Science.gov (United States)

    2011-07-14

    ... Environmental Quality NEPA implementing regulations, 40 CFR Parts 1500-1508, and the FRA NEPA procedures, 64 FR... construction costs, and impacts to farmlands, cultural and historic resources, streams, floodplains and... copies of the Draft EIS and appendices at the following locations: Tupelo City Hall, 71 East Troy...

  5. Main characteristics of train-pedestrian fatalities on Finnish railroads.

    Science.gov (United States)

    Silla, Anne; Luoma, Juha

    2012-03-01

    The aim of this study was to describe the frequency of fatalities, timing of collisions and characteristics of persons killed in train-pedestrian collisions on Finnish railways during 2005-2009. In addition, the Finnish results were compared with those collected in Sweden. The Finnish data were combined from five different sources. The results showed that 311 pedestrians were killed in train-pedestrian collisions, including 264 suicides, 35 accidents and 12 unclassified events. For each event type, most of the victims were male. Most suicide victims were in the 20-29 year age group and on average younger than people who chose some other form of suicide. About half of all victims were intoxicated by alcohol, medicines and/or drugs. Both suicides and accidents occurred most often at the end of the week but no specific peak for time of year was found. Suicides occurred most frequently from afternoon to night and accidents during the rush hours. Most train-pedestrian fatalities happened in densely populated areas. In conclusion, the effective prevention of railway suicides and accidents calls for a systems approach involving effective measures introduced by authorities responsible for urban planning, railways, education and public health.

  6. Railroads for Curry Curry, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  7. Railroads for Torrance County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  8. 76 FR 1666 - Susquehanna Union Railroad Company-Control Exemption-North Shore Railroad Company, Nittany & Bald...

    Science.gov (United States)

    2011-01-11

    ... operating agreement between SEDA-COG Joint Rail Authority (JRA) and certain System Carriers that lease and operate separate lines owned by JRA. The provision requires JRA to approve any change of control of certain System Carriers. In a letter filed on July 28, 2010, JRA states that the parties...

  9. 77 FR 66217 - Arkansas-Oklahoma Railroad, Inc.-Lease and Operation Exemption-Lines of Union Pacific Railroad...

    Science.gov (United States)

    2012-11-02

    ...Alester, a distance of approximately 5.54 miles, and (2) the Krebs Industrial Lead from the clearance... track at milepost 7.04 in Krebs, a distance of approximately 7.04 miles, both lines in Pittsburg...

  10. Railroad Lines - RAIL_CROSSINGS_INDOT_IN: Railroad Crossings in Indiana (Indiana Department of Transportation, 1:1200, Point Shapefile)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — RAIL_CROSSINGS_INDOT_IN is a point shapefile that contains locations of rail crossings in Indiana, provided by personnel of Indiana Department of Transportation...

  11. New Technique for Re200c Catenary Construction on Hada Line%哈大线Re200C接触网工程施工新技术

    Institute of Scientific and Technical Information of China (English)

    朱飞雄

    2003-01-01

    通过借鉴和消化吸收国外的先进技术和施工管理经验,中铁电气化局在哈大线Re200C接触网施工中采用了许多新颖的技术和管理方法,本文介绍这些管理模式、施工特点、质量检测方法和施工允许偏差等.

  12. Calculation on fatigue damage of deepwater catenary hybrid mooring line%深水悬链复合锚泊线疲劳损伤计算

    Institute of Scientific and Technical Information of China (English)

    乔东生; 欧进萍

    2012-01-01

    Take the mooring system of a Spar platform as the research object, the analysis of Spar platform response is carried out in which the wave force is calculated under diffraction theory.After the establishment of two-dimensional nonlinear finite element dynamic model of the hybrid mooring line, the calculation on stiffness of the hybrid mooring line is accomplished through the iterative method based on the empirical formula proposed by Del Vecchio in 1992. The mooring line and seabed interaction is based on the hypothesis of rigid seabed. The fluid drag force and inertia force on the mooring line are calculated according to the Morrison formula.The dynamic analysis is executed through time-domain nonlinear finite element method accounting for the response of the Spar platform which is calculated as above. The stress time histories of the hybrid mooring line in each short-term sea state of South China Sea area are calculated, and then the rain flow counting method is employed to obtain the fatigue load spectrum in each short-term sea state.The Miner linear cumulative law model is used to calculate the fatigue damage of the hybrid mooring line in long-term sea state which consists of tens of short-term sea states.%以某座Spar平台的锚泊系统为研究对象,首先利用三维绕射理论计算Spar平台主体波浪力,得到平台的总体运动响应时程.再建立复合锚泊线的二维非线性有限元动力分析模型,基于Del Vecchio(1992)提出的经验公式,采用迭代的方法计算复合锚泊线的刚度.锚泊线和海床之间的接触作用基于刚性海床假定,基于Morrison公式计算锚泊线的惯性力和拖曳力荷载,根据计算得到的平台主体运动响应时程作为锚泊线顶端输入条件,在时域范围内进行复合锚泊线的动力分析.计算得到中国南海某海域各短期海况条件下复合锚泊线应力的时间历程曲线,采用雨流法对其计数得到对应于各短期海况条件下的疲劳载荷谱.最后根据Miner线性累积损伤模型,对复合锚泊线在长期海况条件下的疲劳损伤进行比较计算.

  13. Soil water storage and groundwater behaviour in a catenary sequence beneath forest in central Amazonia: I. Comparisons between plateau, slope and valley floor

    Directory of Open Access Journals (Sweden)

    M. G. Hodnett

    1997-01-01

    Full Text Available Soil water storage was monitored in three landscape elements in the forest (plateau, slope and valley floor over a 3 year period to identify differences in sub-surface hydrological response. Under the plateau and slope, the changes of storage were very similar and there was no indication of surface runoff on the slope. The mean maximum seasonal storage change was 156 mm in the 2 m profile but it was clear that, in the dry season, the forest was able to take up water from below 3.6 m. Soil water availability was low. Soil water storage changes in the valley were dominated by the behaviour of a shallow water table which, in normal years, varied between 0.1 m below the surface at the end of the wet season and 0.8 m at the end of the dry season. Soil water storage changes were small because root uptake was largely replenished by groundwater flow towards the stream. The groundwater behaviour is controlled mainly by the deep drainage from beneath the plateau and slope areas. The groundwater gradient beneath the slope indicated that recharge beneath the plateau and slope commences only after the soil water deficits from the previous dry season have been replenished. Following a wet season with little recharge, the water table fell, ceasing to influence the valley soil water storage, and the stream dried up. The plateau and slope, a zone of very high porosity between 0.4 and 1.1 m, underlain by a less conductive layer, is a probable route for interflow during, and for a few hours after, heavy and prolonged rainfall.

  14. Test and analysis for vibration and noise of an elevated-station-under-viaduct of Chengdu-Dujiangyan fast railroad line%成灌快铁线下桥式车站振动噪声实测与分析

    Institute of Scientific and Technical Information of China (English)

    冉汶民; 张迅; 李小珍

    2016-01-01

    以成灌快铁安德站为工程背景开展现场试验,实测了轨道梁、站台、候车大厅和办公室区域的振动加速度和声压,并对实测信号进行时域和频域分析。采用数值方法在频域内分析了轨道梁振动、桥墩动反力、站房振动和室内二次辐射噪声,并将计算结果与实测值进行对比。结果表明:当列车以速度190 km/h 通过车站时,轨道梁振动的优势频段为40~80 Hz,竖向振动加速度峰值小于规范限值;办公室和候车大厅地面振动的优势频段为20~100 Hz,振级接近80 dB;站台处、办公室内和候车大厅内噪声的优势频段分别为300~2500 Hz、40~63 Hz 和20~100 Hz,办公室内和候车大厅内的低频噪声远远超出身心舒适度限值;桥墩竖向动反力的优势频段为25~63 Hz,是引起办公室和候车大厅地面振动的主要原因;站房-土体耦合有限元模型和内部声辐射边界元模型可以较好地模拟站房振动及二次辐射噪声。%A field test was conducted for an elevated-station-under-viaduct of Chengdu-Dujiangyan fast railroad line.Vibration accelerations and sound pressures of track beam,platform,waiting hall and office area were measured and then analyzed in time domain and frequency domain,respectively.Vibration of track beam,reaction force of pier,station building vibration and structure-borne noise were simulated in frequency domain and then compared with measured data. Results showed that at a train speed of 190 km /h,the vibration of track beam dominates in the frequency range of 40 ~80 Hz and the peaks of vertical vibration acceleration are smaller than the limited value in standard;the dominant vibration frequencies of office and waiting hall ground are 20 ~100 Hz,with values close to 80 dB;the dominant noise frequencies on the platform,in the office and waiting hall are 300 ~2500 Hz,40 ~63 Hz and 20 ~100 Hz,respectively and the low-frequency noises in the

  15. Finite Element Analysis of Steel Catenary Riser/Soil Contact Problem by ANSYS%钢悬链线立管与海床土体接触问题的ANSYS有限元分析

    Institute of Scientific and Technical Information of China (English)

    郭海燕; 高秦岭; 王小东

    2009-01-01

    钢悬链线立管(SCR)与海床土体的接触问题对立管的疲劳寿命影响很大.运用ANSYS有限元软件中的接触单元模拟SCR与海床接触处的相互作用,考虑海床土体的非线性,建立SCR与海床系统有限元模型,并同已有的等价梁-弹簧模型进行了比较和验证.运用该模型进行计算分析,探讨了管道重量、土体模型和摩擦系数等对管道入土深度和弯矩的影响,为进一步研究SCR与海床的相互作用提供参考.

  16. Study on the Transmission Efficiency of Catenary Tension Force Compensation Pulley Blocks%接触网张力补偿滑轮组传动效率测量研究

    Institute of Scientific and Technical Information of China (English)

    陈立明

    2010-01-01

    针对测量接触网张力补偿滑轮组传动效率时出现的问题进行分析,认为测量时滑轮传动效率、补偿滑轮组及测量系统的重力对测量结果影响很大,甚至会大于滑轮组摩擦力的影响.结合试验测量数据,提出对张力补偿滑轮组传动效率测量数据分析的新方法.

  17. 雷击接触网高速列车车体过电压分析%Analysis of railcar's body over-voltage for electric multiple unit in the case of lightning catenary

    Institute of Scientific and Technical Information of China (English)

    韩伟锋; 胡学永; 肖石; 吴广宁; 高国强; 刘东来; 杨坤松

    2013-01-01

    我国高速铁路大都架设在空旷的野外和高架桥上,没有避雷线的防护,并且高速铁路线路分布地域广,接触网遭受雷击的概率较大.接触网段遭受雷击时将会引起列车车体过电压,危害车内信号监测与控制设备的安全.基于某型动车组的车体接地方式,阐述了雷击接触网时车体过电压产生的机理及入侵途径:一是雷电流通过避雷器注入车体时引起车体电势瞬时抬升,二是接触网中的雷电流在车体-钢轨回路中产生感应电势.通过理论分析和软件仿真,得出在典型雷电波击中接触网时,车体瞬时电势幅值,并提出了降低车体过电压的措施.

  18. 涂装悬链式输送设备在实践应用中的问题分析及解决方案%The Problem Analysis and Solution of Painting Catenary Conveyer in Practical Application

    Institute of Scientific and Technical Information of China (English)

    刘楠

    2012-01-01

    The suspension conveyer has overall function and widely used in modern automobile paint industry. It has the advantages of high flexibility and higher stability in long distance conveying. However, it doesn't mean the conveyer has no problem. We confirm the advantage of the conveyer in this paper, and we introduce its principal problems during its usage in shanqi paint shop and some solutions were proposed after analyzing.%悬挂输送设备广泛应用于现代汽车涂装制造行业,其功能全面,具有高度柔性,在中长距离的输送中稳定性更高,但这并不代表悬挂输送设备就不会出现问题,本文肯定了悬挂输送设备的优点,并就陕西重型汽车涂装车间多年来该类设备发现的主要问题进行归类,加以分析并提出了一些解决方案。

  19. 78 FR 7821 - Public Availability of Railroad Retirement Board FY 2012 Service Contract Inventory

    Science.gov (United States)

    2013-02-04

    ... actions, over $25,000, which the RRB awarded during FY 2012. The information is organized by function to... developed in accordance with guidance issued on November 5, 2010 by the Office of Management and Budget's... Paul Ahern in the Acquisition Management Division, Office of Administration at 312-751-7130 or...

  20. 77 FR 4384 - Public Availability of Railroad Retirement Board FY 2011 Service Contract Inventory

    Science.gov (United States)

    2012-01-27

    ... actions, over $25,000, which the RRB awarded during FY 2011. The information is organized by function to... of Management and Budget's Office of Federal Procurement Policy (OFPP). OFPP's guidance is available... Ahern in the Acquisition Management Division, Office of Administration at (312) 751-7130 or...

  1. 77 FR 13971 - Regulated Navigation Area; MBTA Saugus River Railroad Drawbridge Rehabilitation Project, Saugus...

    Science.gov (United States)

    2012-03-08

    ..., 2008, issue of the Federal Register (73 FR 3316). Public Meeting We do not now plan to hold a public... 17, 2012. D.A. Neptun, Rear Admiral, U.S. Coast Guard, Commander, First Coast Guard District....

  2. Railroads for McKinley County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  3. System Based Knowledge for the Help in Exploitation of Field Data Feedback in Railroad Transport

    OpenAIRE

    MAALEL,A; MEJRI,L; BEN-GHEZELA,H; HADJ-MABROUK,H

    2010-01-01

    The study is from a base of accident scenarii in rail transport (feedback) in order to develop a tool to share build and sustain knowledge and safety and secondly to exploit the knowledge stored to prevent the reproduction of accidents / incidents. This tool should ultimately lead to the proposal of prevention and protection measures to minimize the risk level of a new transport system and thus to improve safety. The approach to achieving this goal largely depends on the use of artificial int...

  4. 21 CFR 1250.45 - Food handling facilities on railroad conveyances.

    Science.gov (United States)

    2010-04-01

    ... INTERSTATE CONVEYANCE SANITATION Equipment and Operation of Land and Air Conveyances § 1250.45 Food handling... for hand and face washing only: Provided, however, That where the kitchen and pantry on a dining car... them lavatory facilities shall be provided in both the kitchen and the pantry. (d) Wherever toilet...

  5. 76 FR 70515 - 2012 Railroad Experience Rating Proclamations, Monthly Compensation Base and Other Determinations

    Science.gov (United States)

    2011-11-14

    ... monthly compensation base. Under section 1(k), remuneration earned from employment covered under the Act cannot be considered subsidiary remuneration if the employee's base year compensation is less than 2.5... an employee's base year compensation, any money remuneration in a month not in excess of an...

  6. 77 FR 66876 - 2013 Railroad Experience Rating Proclamations, Monthly Compensation Base and Other Determinations

    Science.gov (United States)

    2012-11-07

    ... amounts related to the monthly compensation base. Under section 1(k), remuneration earned from employment covered under the Act cannot be considered subsidiary remuneration if the employee's base year... compensation in the base year. In determining an employee's base year compensation, any money remuneration in...

  7. 75 FR 69146 - 2011 Railroad Experience Rating Proclamations, Monthly Compensation Base and Other Determinations

    Science.gov (United States)

    2010-11-10

    ... monthly compensation base. Under section 1(k), remuneration earned from employment covered under the Act cannot be considered subsidiary remuneration if the employee's base year compensation is less than 2.5... base year compensation, any money remuneration in a month not in excess of an amount that bears...

  8. 78 FR 69141 - 2014 Railroad Experience Rating Proclamations, Monthly Compensation Base and Other Determinations

    Science.gov (United States)

    2013-11-18

    ... related to the monthly compensation base. Under section 1(k), remuneration earned from employment covered under the Act cannot be considered subsidiary remuneration if the employee's base year compensation is... year. In determining an employee's base year compensation, any money remuneration in a month not...

  9. 26 CFR 31.6001-3 - Additional records under Railroad Retirement Tax Act.

    Science.gov (United States)

    2010-04-01

    ... Retirement Tax Act shall keep records of all remuneration (whether in money or in something which may be used... address of the employee. (ii) The total amount and date of each payment of remuneration to the employee... remuneration payment with respect to which the tax is imposed. (iv) The amount of employee tax collected...

  10. USGS Small-scale Dataset - North American Atlas - Railroads 200406 ArcExport

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A joint venture involving the National Atlas programs in Canada (Natural Resources Canada), Mexico (Instituto Nacional de Estadística Geografía e Informática),...

  11. Abrasive wear of railway sections of steel with a different pearlite morphology in railroad switches

    Directory of Open Access Journals (Sweden)

    J. Herian

    2010-11-01

    Full Text Available Purpose: The analyse of pearlite morphology changes as a result of hot rolling process and isothermal annealing.Design/methodology/approach: Physical modelling of isothermal annealing for a transition point of 520-620°C was carried out using a Gleeble simulator. A scanning electron microscope was used for a quantitative evaluation of the microstructure. Tests of resistance to abrasive wear were carried out at the Amsler stand.Findings: The obtained test results confirm that these methods can be effectively used in shaping the pearlitic structure and properties of the steel.Practical implications: In physical modelling of tests of resistance to abrasive wear for the steel grade R260 after hot rolling and isothermal annealing it has been proved that this feature is a function of the steel structure and properties in the given operation conditions. The resistance to abrasive wear of steel R260 with a pearlitic structure and different pearlite morphology decreases with the increase of load and slide.Originality/value: An advantageous pearlitic morphology of steel (block sections with interlamellar distance in the order of 0.12-0.13 μm, ensuring hardness of about 340-350 HB, is facilitated by a hot rolling process combined with isothermal annealing.

  12. Investigation of differential movement at railroad bridge approaches through geotechnical instrumentation

    Institute of Scientific and Technical Information of China (English)

    Debakanta MISHRA; Erol TUTUMLUER; Timothy D.STARK; James P.HYSLIP; Steven M.CHRISMER; Michael TOMAS

    2012-01-01

    Railway transitions experience differential movements due to differences in track system stiffness,track damping characteristics,foundation type,ballast settlement from fouling and/or degradation,as well as fill and subgrade settlement.This differential movement is especially problematic for high speed rail infrastructure as the 'bump' at the transition is accentuated at high speeds.Identification of different factors contributing towards this differential movement,as well as development of design and maintenance strategies to mitigate the problem is imperative for the safe and economical operation of both freight and passenger rail networks.This paper presents the research framework and initial instrumentation details from an ongoing research effort at the University of Illinois at Urbana-Champaign.Three bridge approaches experiencing recurrent geometry problems were instrumented using multidepth deflectometers (MDDs) and strain gages to identify different factors contributing to the development of differential movements.

  13. 26 CFR 1.263(e)-1 - Expenditures in connection with certain railroad rolling stock.

    Science.gov (United States)

    2010-04-01

    ... may be aggregated without regard to the unit in the project with respect to which each expenditure is connected, and an amount equal to the aggregate expenditures for the project divided by the number of units... 26 Internal Revenue 3 2010-04-01 2010-04-01 false Expenditures in connection with certain...

  14. 78 FR 65040 - BNSF Railway Company, CBEC Railway Inc., Iowa Interstate Railroad, Ltd., and Union Pacific...

    Science.gov (United States)

    2013-10-30

    ...-92/US-275 and the connection with the lead track to MidAmerican Energy Company's Walter Scott, Jr... Fifteenth Street NW., Suite 225, Washington, DC 20005 (BNSF's representative); Benjamin M. Clark,...

  15. A Matheuristic Approach for Solving the Railroad Hump Yard Block-to-Track Assignment

    DEFF Research Database (Denmark)

    Haahr, Jørgen Thorlund; Lusby, Richard Martin

    This paper presents a novel matheuristic for solving the Hump Yard Block-to-Track Assignment Problem. This is an important problem rising in the railway freight industry and involves scheduling the transitions of a set of rail cars from a set of inbound trains to a set of outbound trains over...... a certain planning horizon. It was also the topic of the 2014 challenge organised by the Railway Applications Section of the Institute for Operations Research and the Management Sciences for which the proposed matheuristic was awarded first prize. Our approach decomposes the problem into three highly...

  16. Development of an Ontology to Assist the Modeling of Accident Scenarii "Application on Railroad Transport "

    CERN Document Server

    Maalel, Ahmed; Mejri, Lassad; Ghezela, Henda Hajjami Ben

    2012-01-01

    In a world where communication and information sharing are at the heart of our business, the terminology needs are most pressing. It has become imperative to identify the terms used and defined in a consensual and coherent way while preserving linguistic diversity. To streamline and strengthen the process of acquisition, representation and exploitation of scenarii of train accidents, it is necessary to harmonize and standardize the terminology used by players in the security field. The research aims to significantly improve analytical activities and operations of the various safety studies, by tracking the error in system, hardware, software and human. This paper presents the contribution of ontology to modeling scenarii for rail accidents through a knowledge model based on a generic ontology and domain ontology. After a detailed presentation of the state of the art material, this article presents the first results of the developed model.

  17. 75 FR 49022 - San Luis & Rio Grande Railroad-Petition for a Declaratory Order

    Science.gov (United States)

    2010-08-12

    ... whether the Board's jurisdiction preempts the land use code of Conejos County, Colo. (County) that might... a complaint on May 24, 2010, in County Court, Conejos County, seeking to enjoin operations at...

  18. 76 FR 6517 - San Luis & Rio Grande Railroad-Petition for a Declaratory Order

    Science.gov (United States)

    2011-02-04

    ... a.m. (local time), in Our Lady of Guadalupe Parish Hall, 6631 County Road 13, Conejos, Colorado... the Board's jurisdiction preempts the land-use code of Conejos County, Colorado (County) that may... public comments, several entities and individuals filed comments. One such entity, Conejos County...

  19. 77 FR 58608 - Railroad Safety Advisory Committee (RSAC); Working Group Activity Update

    Science.gov (United States)

    2012-09-21

    ... result in an accident/incident or a near miss. The task force has been formed and will begin work after... announcement of working group activities and status reports of April 23, 2012 (77 FR 24257). The 46th full RSAC... published on August 24, 2006 (71 FR 50275), and was open for comment until October 23, 2006. The...

  20. 76 FR 72997 - Railroad Safety Advisory Committee (RSAC); Working Group Activity Update

    Science.gov (United States)

    2011-11-28

    ... result in an accident/incident or a near miss. The task force has been formed and will begin work after... announcement of working group activities and status reports of December 7, 2010 (75 FR 76070). The 44th full..., 2006 (71 FR 50275), and was open for comment until October 23, 2006. The working group agreed...

  1. 75 FR 76070 - Railroad Safety Advisory Committee (RSAC); Working Group Activity Update

    Science.gov (United States)

    2010-12-07

    ... near miss. The task force has been formed and will begin work after other RSIA priorities are met... announcement of working group activities and status reports of August 20, 2010 (75 FR 51525). The 42nd full... Rulemaking (NPRM) was published on August 24, 2006 (71 FR 50275), and was open for comment until October...

  2. 75 FR 4904 - Railroad Safety Advisory Committee (RSAC); Working Group Activity Update

    Science.gov (United States)

    2010-01-29

    ... but which result in an accident/incident or a near miss. The Task Force has been formed and will meet... status reports of August 14, 2009 (74 FR 41181). The 40th full RSAC Committee meeting was held September... Proposed Rulemaking (NPRM) was published on August 24, 2006 (71 FR 50275) and was open for comment...

  3. 77 FR 24257 - Railroad Safety Advisory Committee (RSAC); Working Group Activity Update

    Science.gov (United States)

    2012-04-23

    ... failures, but that result in an accident/incident or a near miss. The task force has been formed and will... announcement of working group activities and status reports of November 28, 2011 (76 FR 72997). The 45th full... Rulemaking (NPRM) was published on August 24, 2006 (71 FR 50275), and was open for comment until October...

  4. 78 FR 48224 - Lac-Mégantic Railroad Accident Discussion and DOT Safety Recommendations

    Science.gov (United States)

    2013-08-07

    ... transporting loaded tank cars containing TIH materials. \\4\\ 74 FR 1770 (Jan. 13, 2009). Further, PHMSA is... recommendations relates to removing the reverse lever (reverser), when the lever is capable of being removed from... 232.103(n)(4) to adopt procedures to govern the status of the reverse lever (reverser) on...

  5. The cost and risk impacts of rerouting railroad shipments of hazardous materials.

    Science.gov (United States)

    Glickman, Theodore S; Erkut, Erhan; Zschocke, Mark S

    2007-09-01

    Rail shipments of hazardous materials expose the population near the routes to the possibility of an accident resulting in a spill. Rail routes are determined by economic concerns such as route length and the revenue generated for the originating carrier. In this paper we consider an alternate routing strategy that takes accident risks into account. We employ a model to quantify rail transport risk and then use a weighted combination of cost and risk and generate alternate routes. In some cases the alternate routes achieve significantly lower risk values than the practical routes at a small incremental cost. While there are generally fewer rerouting alternatives for rail than for road transport, considering the possible consequences of a train derailment we argue that risk should be taken into account when selecting rail routes and that the cost-risk tradeoffs should be evaluated.

  6. Abrasive wear of railway sections of steel with a different pearlite morphology in railroad switches

    OpenAIRE

    J. Herian; K. Aniołek

    2010-01-01

    Purpose: The analyse of pearlite morphology changes as a result of hot rolling process and isothermal annealing.Design/methodology/approach: Physical modelling of isothermal annealing for a transition point of 520-620°C was carried out using a Gleeble simulator. A scanning electron microscope was used for a quantitative evaluation of the microstructure. Tests of resistance to abrasive wear were carried out at the Amsler stand.Findings: The obtained test results confirm that these methods can ...

  7. 77 FR 73114 - BNSF Railway Company-Temporary Trackage Rights Exemption-Union Pacific Railroad Company

    Science.gov (United States)

    2012-12-07

    ... document corrects a notice appearing in the Federal Register on December 3, 2012 (77 FR 71,680). FOR...: On December 3, 2012, the Federal Register published a notice at 77 FR 71,680 regarding Docket No. FD... Surface Transportation Board BNSF Railway Company--Temporary Trackage Rights Exemption--Union...

  8. 20 CFR Appendix 3 to Part 220 - Railroad Retirement Board Occupational Disability Standards

    Science.gov (United States)

    2010-04-01

    ... Stage 2 86 2 S Stage 3 Renal Pelvis: Local 85.4 3 S Regional 56.3 2 S.... Medical record review Documented myocardial infarction Recommended. Stress test Positive Recommended... ≤7 METS D Coronary artery disease: Myocardial infarction Multiple infarctions D...

  9. 76 FR 16199 - Hours of Service of Railroad Employees; Substantive Regulations for Train Employees Providing...

    Science.gov (United States)

    2011-03-22

    ... FR 30665 (June 26, 2009). The RSIA established a limit of 276 hours per calendar month for train... document as the hours of service laws (HSL). This function has been delegated to the FRA Administrator. 49 U.S.C. 103(c); 49 CFR 1.49(d). Congress substantially amended the HSL on three occasions. The...

  10. 76 FR 50359 - Hours of Service of Railroad Employees; Substantive Regulations for Train Employees Providing...

    Science.gov (United States)

    2011-08-12

    ... comments in response to FRA's March 22, 2011 proposed rule in this rulemaking (76 FR 16200), FRA issues... Public Law 110-432, Div. A, and FRA Interim Statement of Agency Policy and Interpretation at 74 FR 30665... alternative-- Final rule freight HSL Cost description Undiscounted PV@7% PV@3% Undiscounted PV@7% PV@3%...

  11. A Matheuristic Approach to Integrate Humping and Pullout Sequencing Operations at Railroad Hump Yards

    DEFF Research Database (Denmark)

    Haahr, Jørgen Thorlund; Lusby, Richard Martin

    2016-01-01

    This article presents a novel matheuristic for solving the hump yard block-to-track assignment problem. This is an important problem arising in the railway freight industry and involves scheduling the transitions of a set of rail cars from a set of inbound trains to a set of outbound trains over...... a certain planning horizon. It was also the topic of the 2014 challenge organized by the Railway Applications Section of the Institute for Operations Research and the Management Sciences for which the proposed matheuristic was awarded first prize. Our approach decomposes the problem into three highly...... dependent subproblems. Optimization-based strategies are adopted for two of these, while the third is solved using a greedy heuristic. We demonstrate the efficiency of the complete framework on the official datasets, where solutions within 4–14% of a known lower bound (to a relaxed problem) are found. We...

  12. Long-term vicarious calibration efforts of MERIS at railroad valley playa (NV) - An update

    OpenAIRE

    Kneubühler, Mathias; Schaepman, Michael E.; Thome, Kurt

    2006-01-01

    The launch of ESA’s ENVISAT in March 2002 was followed by a commissioning phase for all ENVISAT instruments to verify the performance of the instruments and recommend possible adjustments of the calibration or the product algorithms before the data was widely distributed. Long-term activities to assess MERIS’ performance are ongoing. Several vicarious calibration (VC) experiments for MERIS were performed by the Optical Sciences Center, University of Arizona, and the Remote Sensing Laboratorie...

  13. Long-term vicarious calibration efforts of MERIS at Railroad Valley Valley Playa (NV) - and update

    OpenAIRE

    Kneubühler, Mathias; Schaepman, Michael E.; Thome, Kurt

    2005-01-01

    The launch of ESA’s ENVISAT in March 2002 was followed by a commissioning phase for all ENVISAT instruments to verify the performance of the instruments and recommend possible adjustments of the calibration or the product algorithms before the data was widely distributed. Longterm activities to assess MERIS’ performance are ongoing. Several vicarious calibration (VC) experiments for MERIS were performed by the Optical Sciences Center, University of Arizona, and the Remote Sensing Laboratories...

  14. 77 FR 35466 - Pilot Project Grants in Support of Railroad Safety Risk Reduction Programs

    Science.gov (United States)

    2012-06-13

    ... program (multiple stakeholders). 3.2 Cost Sharing and Matching Applicants should specify the non-Federal... principles (see Appendix 1), and must not represent double counting of costs otherwise accounted for in an... project that includes both Federal funds and matching funds. Items of cost included in the budget must...

  15. 77 FR 25910 - National Trails System Act and Railroad Rights-of-Way

    Science.gov (United States)

    2012-05-02

    ...., Washington, DC 20423-0001. FOR FURTHER INFORMATION CONTACT: Julia Farr at (202) 245-0359. Assistance for the.... \\1\\ The notice of proposed rulemaking was published at 76 FR 8992-95. Background. The Trails Act was... plain language of 16 U.S.C. 1247(d) requires states and political subdivisions, as well as...

  16. 78 FR 66988 - Minnesota Northern Railroad, Inc.-Abandonment Exemption-in Polk County, Minn.

    Science.gov (United States)

    2013-11-07

    ... Line).\\1\\ The Line traverses United States Postal Service Zip Code 56517. \\1\\ Upon abandonment, MNN... abandonment of rail service and salvage of the Line, the Line may be suitable for other public use, including... Herzig, Clearance Clerk. BILLING CODE 4915-01-P...

  17. 75 FR 36149 - Union Pacific Railroad Company-Abandonment Exemption-in Kane County, IL.

    Science.gov (United States)

    2010-06-24

    ....30, near St. Charles, in Kane County, Ill. The line traverses United States Postal Service Zip Code... salvage of the line, the line may be suitable for other public use, including interim trail use. Any..., Office of Proceedings. Jeffrey Herzig, Clearance Clerk. BILLING CODE 4915-01-P...

  18. 78 FR 42998 - Hazardous Materials: Improving the Safety of Railroad Transportation of Hazardous Materials

    Science.gov (United States)

    2013-07-18

    ... published on April 11, 2000 (65 FR 19477). Robert C. Lauby, Deputy Associate Administrator for Regulatory..., Washington, DC 20590, (202) 493-6050, Kurt.Eichenlaub@dot.gov ; or Mr. Karl Alexy, Staff Director, Hazardous... Karl.Alexy@dot.gov . SUPPLEMENTARY INFORMATION: The Secretary of Transportation (Secretary)...

  19. Railroad inspection based on ACFM employing a non-uniform B-spline approach

    Science.gov (United States)

    Chacón Muñoz, J. M.; García Márquez, F. P.; Papaelias, M.

    2013-11-01

    The stresses sustained by rails have increased in recent years due to the use of higher train speeds and heavier axle loads. For this reason surface and near-surface defects generate by Rolling Contact Fatigue (RCF) have become particularly significant as they can cause unexpected structural failure of the rail, resulting in severe derailments. The accident that took place in Hatfield, UK (2000), is an example of a derailment caused by the structural failure of a rail section due to RCF. Early detection of RCF rail defects is therefore of paramount importance to the rail industry. The performance of existing ultrasonic and magnetic flux leakage techniques in detecting rail surface-breaking defects, such as head checks and gauge corner cracking, is inadequate during high-speed inspection, while eddy current sensors suffer from lift-off effects. The results obtained through rail inspection experiments under simulated conditions using Alternating Current Field Measurement (ACFM) probes, suggest that this technique can be applied for the accurate and reliable detection of surface-breaking defects at high inspection speeds. This paper presents the B-Spline approach used for the accurate filtering the noise of the raw ACFM signal obtained during high speed tests to improve the reliability of the measurements. A non-uniform B-spline approximation is employed to calculate the exact positions and the dimensions of the defects. This method generates a smooth approximation similar to the ACFM dataset points related to the rail surface-breaking defect.

  20. 75 FR 70076 - Tennessee Southern Railroad Company, Patriot Rail, LLC, Patriot Rail Holdings LLC, and Patriot...

    Science.gov (United States)

    2010-11-16

    ... rail line between the Oklahoma-Arkansas state border, milepost 40.0, and Perkins, Ark., milepost 87.0, including auxiliary, temporary storage, and spur tracks, in Howard and Sevier Counties, Ark.; Docket No....

  1. 26 CFR 1.45G-1 - Railroad track maintenance credit.

    Science.gov (United States)

    2010-04-01

    ... accounts in 49 CFR Part 1201, Subpart A: (i) Property Account 3, Grading. (ii) Property Account 4, Other... following STB property accounts in 49 CFR Part 1201, Subpart A: (A) Property Account 3, Grading; (B... other track material), and 11 (ballast) in 49 CFR part 1201, Subpart A. Double track is treated...

  2. USGS Small-scale Dataset - North American Atlas - Railroads 200406 Shapefile

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A joint venture involving the National Atlas programs in Canada (Natural Resources Canada), Mexico (Instituto Nacional de Estadística Geografía e Informática),...

  3. 49 CFR Appendix B to Part 209 - Federal Railroad Administration Guidelines for Initial Hazardous Materials Assessments

    Science.gov (United States)

    2010-10-01

    ... committed the acts due to a failure to exercise reasonable care under the circumstances (“knowingly”). For... example, the guidelines for shipping paper violations at 49 CFR §§ 172.200-.203. All penalties in these... confusion, these penalty guidelines use the notion of “human contact” to trigger penalty aggravation....

  4. 77 FR 29456 - Central Railroad Company of Indianapolis-Abandonment Exemption-in Howard County, IN

    Science.gov (United States)

    2012-05-17

    ... partial revocation under 49 U.S.C. 10502(d) must be filed. Provided no formal expression of intent to file an offer of financial assistance (OFA) has been received, this exemption will be effective on June...

  5. 78 FR 67217 - Union Pacific Railroad Company-Abandonment Exemption-in Franklin County, Iowa

    Science.gov (United States)

    2013-11-08

    ... condition adequately protects affected employees, a petition for partial revocation under 49 U.S.C. 10502(d) must be filed. Provided no formal expression of intent to file an offer of financial assistance...

  6. On the Quasi-stationary curving dynamics of a railroad truck

    DEFF Research Database (Denmark)

    True, Hans; Hansen, T. G.; Lundell, H.

    2005-01-01

    We examine three aspects of the dynamics of the Cooperrider truck travelling in a curve with constant radius. First the critical speed is found. Second we investigate the existence of multiple steady solutions to the curving problem. Third - and it is related to the second problem - we examine...... the position of the truck frame and the wheelsets during curving. One interesting result is that for a given superelevation there exist curve radii for which the critical speed is exceeded, when the vehicle negotiates the curve with the allowed maximum cant deficiency. These critical speeds are lower than...

  7. 75 FR 51525 - Railroad Safety Advisory Committee (RSAC); Working Group Activity Update

    Science.gov (United States)

    2010-08-20

    ... temperatures standards, locomotive alerters, and remote control locomotives. The group reached consensus... announcement of working group activities and status reports of January 29, 2010 (75 FR 4904). The 41st full... addressed, including conventional locomotives, high-speed power cars, cab cars, multiple-unit...

  8. 75 FR 11992 - Notice of Scheduling of Public Hearing; Association of American Railroads

    Science.gov (United States)

    2010-03-12

    ... comments and related material by any of the following methods: Internet: http://www.regulations.gov... download on the internet at the docket facility's Web site at http://www.regulations.gov . Anyone is able... FRA-2009-0111. A copy of AAR's full petition is available for review online at...

  9. 77 FR 71680 - BNSF Railway Company-Temporary Trackage Rights Exemption-Union Pacific Railroad Company

    Science.gov (United States)

    2012-12-03

    ... Surface Transportation Board BNSF Railway Company--Temporary Trackage Rights Exemption--Union Pacific... rights described in Docket No. FD 35676 \\1\\ to permit the trackage rights to expire at midnight on December 31, 2012, in accordance with the agreement of the parties, subject to the employee...

  10. [Health problems in the development of new cities in the Baikal-Amur Railroads region].

    Science.gov (United States)

    Shishkova, A P; Kir'ianova, I S

    1989-01-01

    The presented findings of research on the sanitary and hygienic status of the BAM-regional cities and towns and assessment of their (and their analogues) developmental perspectives have revealed the interregional difference in climate and nature dictating a differential approach to planning urbanisation of this region's specific areas. Based on the analysis of urban planning and construction and on special observations, measures aimed at environmental protection and population morbidity control have been elaborated and implemented.

  11. Numerical analysis for fatigue life prediction on railroad RCF crack initiation

    NARCIS (Netherlands)

    Ma, Y.; Markine, V.L.

    2015-01-01

    In the present paper, a numerical procedure for surface crack initiation analysis based on the critical plane approach is proposed. The complex stress/strain state of wheel and rail (W/R) contact is analysed by means of submodelling approach together with the transient contact nodal loads obtained f

  12. 75 FR 27112 - Solicitation of Applications and Notice of Funding Availability for the FRA Railroad System...

    Science.gov (United States)

    2010-05-13

    ... total cost of the project into the following categories: (a) Direct Costs (such as labor, materials...,'' and, as applicable, Standard Form 424B, ``Assurances--Non-Construction Programs.'' Also include signed... inspection fees); (b) Other Direct Costs (such as travel); and (c) General and Administrative Costs....

  13. 78 FR 65422 - Notice of Funding Availability and Solicitation of Applications for Grants Under the Railroad...

    Science.gov (United States)

    2013-10-31

    ...) Project inspection fees; (6) Site work; (7) Demolition and removal; 8) Construction labor, supervision... estimated cost of the construction contract. This may include costs for: Labor costs, e.g., associated with... available until expended. The Act directs the Secretary of Transportation to competitively award...

  14. Electrochemical stabilization as a means of preventing ground failure in railroads

    Science.gov (United States)

    Solntzev, D.I.; Sorkov, V.S.; Sokoloff, V.P.

    1947-01-01

    Laboratory and field data on electrochemical stabilization of clays, by three Russian authors, are here presented in translation. Abstracts of the Russian papers were published in May 1947 issue of the Engineering News Record (pp. 100-101). There exists also a small body of literature, in German and English, dealing with the electrochemical stabilization and related subjects. Elements of the electrochemical process were patented by Casagrande in Germany, shortly before the last war. Results of the Russians and of others, including the German patent, appear to be sound and interesting accordingly. Mechanism of the electrochemical stabilization, however, appears to be surmised rather than established. Unless the mechanism of such stabilization is understood in detail, little progress may be expected in field applications of the electrochemical method. Electroosmosis, a poorly reversible coagulation of the soil colloids, and introduction of exchangeable aluminum into the clay complex have been given credit for the ground-stabilizing effects of direct electrical current. Much remains to be done, as the reader may see, in developing further the theory of the method. A critical study is indicated, in this connection, by agencies or individuals qualified and equipped for basic research in soil physics. Optimum schedules for field treatments need be ascertained with particular care, to suit any given kind of material and environment. A wide range of variation in such schedules, is most certainly to be encountered in dealing with materials as diverse in their composition and properties as are clays. Any generalization on relationships between soil, electrolytes, moisture, and current could be premature if based on the Russian work alone. Stabilization of ground is a major engineering geologic problem of national interest. Needless to say, perhaps, that failures are to be expected, in laboratory and in the field, in this as well as in any other kind of research. To minimize probabilities of such failures, it may be recommended that investigators develop the electrochemical stabilization problem not merely against the relatively narrow background of soil mechanics, but with a certain feeling for geology, mineralogy, pedology, soil physics, and soil chemistry.

  15. Atmospheric CO along the Trans-Siberian Railroad and River Ob: source identification using isotope analysis

    NARCIS (Netherlands)

    Tarasova, O.A.; Brenninkmeijer, C.A.M.; Assonov, S.S.; Elansky, N.F.; Röckmann, T.; Sofiev, M.A.

    2007-01-01

    The concentration, radiocarbon (14C) and stable isotope (13C and 18O) content of CO have been determined in air samples collected across Russia (about 8,500 km) and along the Ob river during the summer of 1999 to study the CO sources and sinks. An instrumented carriage on the Trans-Siberian railway

  16. 78 FR 18763 - Establishment of the Harriet TubmanUnderground Railroad National Monument

    Science.gov (United States)

    2013-03-28

    ... forever motivated by her love of family and community and by her deep and abiding faith. Born Araminta.... Many of the places in which she grew up and worked still remain. Stewart's Canal at the western edge of... John T. Stewart. The canal, the waterways it opened to the Chesapeake ] Bay, and the Blackwater...

  17. 78 FR 65040 - Chicago Central & Pacific Railroad Company-Abandonment Exemption-in Linn County, Iowa

    Science.gov (United States)

    2013-10-30

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION... file an OFA under 49 CFR 1152.27(c)(2),\\4\\ and trail use/rail banking requests under 49 CFR 1152.29... November 7, 2013. Environmental, historic preservation, public use, or trail use/rail banking...

  18. 77 FR 66912 - Soo Line Railroad Company-Abandonment Exemption-in Cook County, IL

    Science.gov (United States)

    2012-11-07

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION... expressions of intent to file an OFA under 49 CFR 1152.27(c)(2),\\2\\ and trail use/rail banking requests under... use/rail banking conditions will be imposed, where appropriate, in a subsequent decision. Pursuant...

  19. 78 FR 53819 - Union Pacific Railroad Company-Abandonment Exemption-in Canyon County, Idaho

    Science.gov (United States)

    2013-08-30

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION... file an OFA under 49 CFR 1152.27(c)(2),\\2\\ and trail use/rail banking requests under 49 CFR 1152.29.... Environmental, historic preservation, public use, or trail use/rail banking conditions will be imposed,...

  20. 75 FR 24400 - Drawbridge Operation Regulation; CSX Railroad, Trout River, Mile 0.9, Jacksonville, FL

    Science.gov (United States)

    2010-05-05

    ... position, displaying green lights to indicate that vessels may pass. (c) As a train approaches, provided... Transportation, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590..., Jacksonville, FL in the Federal Register (74 FR 106). We received no comments on the proposed rule. No...