WorldWideScience

Sample records for catenaries railroads

  1. 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...

  2. Detection and estimation research of high-speed railway catenary

    CERN Document Server

    Liu, Zhigang

    2017-01-01

    This book describes the wave characteristics of contact lines taking wind into consideration and discusses new methods for detecting catenary geometry, pantograph slide fault, and catenary support system faults. It also introduces wire-irregularity detection methods for catenary estimation, and discusses modern spectrum estimation tools for catenary. It is organized in three parts: the first discusses statistical characteristics of pantograph-catenary data, such as stationarity, periodicity, correlation, high-order statistical properties and wave characteristics of contact lines, which are the basis of pantograph-catenary relationship analysis. The second part includes geometry parameter detection and support-system fault detection in catenary, as well as slide-fault detection in pantographs, and presents some new detection algorithms and plans. The final part addresses catenary estimation, including detection of contact-line wire irregularities and estimation of catenary based on spectrum, and presents detec...

  3. 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.

  4. 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).

  5. Experimental study and modelling of overheating of electrical catenary-pantograph interface for trains supplied with power in station

    Science.gov (United States)

    Bausseron, Thomas; Baucour, Philippe; Glises, Raynal; Verschelde, Sylvain; Chamagne, Didier

    2015-06-01

    For railroads and trains, there have been many incidents involving catenary overheating at the contact with the pantograph when a train is supplied with power while standing still. The overheating of the catenary-pantograph interface can sometimes cause the contact wire to break. In order to anticipate the occurrence of such costly problems, the FEMTO-ST Institute has carried out theoretical and experimental studies in collaboration with the French National Railway Company (SNCF) to better understand this phenomenon. First, a 2D transient electrical model was developed for the contact wire. This allows the current distribution in the wire to be estimated to obtain an accurate measure of the internal heat generation. The heat produced by the interface was considered and split between the catenary and pantograph with an analytical model. Finally, the heat transfer equation for the wire under particular boundary conditions was solved for the entire finite difference network based on Euler's implicit method. The transient modelling results of the wire heating were compared with earlier experimental values, and a parametric study was performed.

  6. Automated Recognition of Railroad Infrastructure in Rural Areas from LIDAR Data

    Directory of Open Access Journals (Sweden)

    Mostafa Arastounia

    2015-11-01

    Full Text Available This study is aimed at developing automated methods to recognize railroad infrastructure from 3D LIDAR data. Railroad infrastructure includes rail tracks, contact cables, catenary cables, return current cables, masts, and cantilevers. The LIDAR dataset used in this study is acquired by placing an Optech Lynx mobile mapping system on a railcar, operating at 125 km/h. The acquired dataset covers 550 meters of Austrian rural railroad corridor comprising 31 railroad key elements and containing only spatial information. The proposed methodology recognizes key components of the railroad corridor based on their physical shape, geometrical properties, and the topological relationships among them. The developed algorithms managed to recognize all key components of the railroad infrastructure, including two rail tracks, thirteen masts, thirteen cantilevers, one contact cable, one catenary cable, and one return current cable. The results are presented and discussed both at object level and at point cloud level. The results indicate that 100% accuracy and 100% precision at the object level and an average of 96.4% accuracy and an average of 97.1% precision at point cloud level are achieved.

  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. Diffusion of innovations dynamics, biological growth and catenary function

    Science.gov (United States)

    Guseo, Renato

    2016-12-01

    The catenary function has a well-known role in determining the shape of chains and cables supported at their ends under the force of gravity. This enables design using a specific static equilibrium over space. Its reflected version, the catenary arch, allows the construction of bridges and arches exploiting the dual equilibrium property under uniform compression. In this paper, we emphasize a further connection with well-known aggregate biological growth models over time and the related diffusion of innovation key paradigms (e.g., logistic and Bass distributions over time) that determine self-sustaining evolutionary growth dynamics in naturalistic and socio-economic contexts. Moreover, we prove that the 'local entropy function', related to a logistic distribution, is a catenary and vice versa. This special invariance may be explained, at a deeper level, through the Verlinde's conjecture on the origin of gravity as an effect of the entropic force.

  9. The results of the pantograph-catenary interaction benchmark

    Science.gov (United States)

    Bruni, Stefano; Ambrosio, Jorge; Carnicero, Alberto; Cho, Yong Hyeon; Finner, Lars; Ikeda, Mitsuru; Kwon, Sam Young; Massat, Jean-Pierre; Stichel, Sebastian; Tur, Manuel; Zhang, Weihua

    2015-03-01

    This paper describes the results of a voluntary benchmark initiative concerning the simulation of pantograph-catenary interaction, which was proposed and coordinated by Politecnico di Milano and participated by 10 research institutions established in 9 different countries across Europe and Asia. The aims of the benchmark are to assess the dispersion of results on the same simulation study cases, to demonstrate the accuracy of numerical methodologies and simulation models and to identify the best suited modelling approaches to study pantograph-catenary interaction. One static and three dynamic simulation cases were defined for a non-existing but realistic high-speed pantograph-catenary couple. These cases were run using 10 of the major simulation codes presently in use for the study of pantograph-catenary interaction, and the results are presented and critically discussed here. All input data required to run the study cases are also provided, allowing the use of this benchmark as a term of comparison for other simulation codes.

  10. Active control strategy on a catenary-pantograph validated model

    Science.gov (United States)

    Sanchez-Rebollo, C.; Jimenez-Octavio, J. R.; Carnicero, A.

    2013-04-01

    Dynamic simulation methods have become essential in the design process and control of the catenary-pantograph system, overall since high-speed trains and interoperability criteria are getting very trendy. This paper presents an original hardware-in-the-loop (HIL) strategy aimed at integrating a multicriteria active control within the catenary-pantograph dynamic interaction. The relevance of HIL control systems applied in the frame of the pantograph is undoubtedly increasing due to the recent and more demanding requirements for high-speed railway systems. Since the loss of contact between the catenary and the pantograph leads to arcing and electrical wear, and too high contact forces cause mechanical wear of both the catenary wires and the strips of the pantograph, not only prescribed but also economic and performance criteria ratify such a relevance. Different configurations of the proportional-integral-derivative (PID) controller are proposed and applied to two different plant systems. Since this paper is mainly focused on the control strategy, both plant systems are simulation models though the methodology is suitable for a laboratory bench. The strategy of control involves a multicriteria optimisation of the contact force and the consumption of the energy supplied by the control force, a genetic algorithm has been applied for this purpose. Thus, the PID controller is fitted according to these conflicting objectives and tested within a nonlinear lumped model and a nonlinear finite element model, being the last one validated against the European Standard EN 50318. Finally, certain tests have been accomplished in order to analyse the robustness of the control strategy. Particularly, the relevance or the plant simulation, the running speed and the instrumentation time delay are studied in this paper.

  11. Application of Template Matching for Improving Classification of Urban Railroad Point Clouds.

    Science.gov (United States)

    Arastounia, Mostafa; Oude Elberink, Sander

    2016-12-12

    This study develops an integrated data-driven and model-driven approach (template matching) that clusters the urban railroad point clouds into three classes of rail track, contact cable, and catenary cable. The employed dataset covers 630 m of the Dutch urban railroad corridors in which there are four rail tracks, two contact cables, and two catenary cables. The dataset includes only geometrical information (three dimensional (3D) coordinates of the points) with no intensity data and no RGB data. The obtained results indicate that all objects of interest are successfully classified at the object level with no false positives and no false negatives. The results also show that an average 97.3% precision and an average 97.7% accuracy at the point cloud level are achieved. The high precision and high accuracy of the rail track classification (both greater than 96%) at the point cloud level stems from the great impact of the employed template matching method on excluding the false positives. The cables also achieve quite high average precision (96.8%) and accuracy (98.4%) due to their high sampling and isolated position in the railroad corridor.

  12. A photovoltaic catenary-tent array for the Martian surface

    Science.gov (United States)

    Crutchik, M.; Colozza, Anthony J.; Appelbaum, J.

    1993-01-01

    To provide electrical power during an exploration mission to Mars, a deployable tent-shaped structure with a flexible photovoltaic (PV) blanket is proposed. The array is designed with a self-deploying mechanism utilizing pressurized gas expansion. The structural design for the array uses a combination of cables, beams, and columns to support and deploy the PV blanket. Under the force of gravity a cable carrying a uniform load will take the shape of a catenary curve. A catenary-tent collector is self shadowing which must be taken into account in the solar radiation calculation. The shape and the area of the shadow on the array was calculated and used in the determination of the global radiation on the array. The PV blanket shape and structure dimension were optimized to achieve a configuration which maximizes the specific power (W/kg). The optimization was performed for four types of PV blankets (Si, GaAs/Ge, GaAs CLEFT, and amorphous Si) and four types of structure materials (Carbon composite, Aramid Fiber composite, Aluminum, and Magnesium). The results show that the catenary shape of the PV blanket, which produces the highest specific power, corresponds to zero end angle at the base with respect to the horizontal. The tent angle is determined by the combined effect of the array structure specific mass and the PV blanket output power. The combination of carbon composite structural material and GaAs CLEFT solar cells produce the highest specific power. The study was carried out for two sites on Mars corresponding to the Viking Lander locations. The designs were also compared for summer, winter, and yearly operation.

  13. 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.

  14. Microcomputer design and analysis of the cable catenary large space antenna system

    Science.gov (United States)

    Akle, W.

    1984-01-01

    The use of microcomputers in the design of a cable catenary large space antenna system is discussed. The development of a system design capability, data base utilization, systems integration, program structure and logic, and integrated graphics output are discussed.

  15. 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…

  16. Fatigue Analysis of Steel Catenary Risers Based on a Plasticity Model

    Institute of Scientific and Technical Information of China (English)

    Yongqiang Dong; LipingSun

    2015-01-01

    The most critical issue in the steel catenary riser design is to evaluate the fatigue damage in the touchdown zone accurately. Appropriate modeling of the riser-soil resistance in the touchdown zone can lead to significant cost reduction by optimizing design. This paper presents a plasticity model that can be applied to numerically simulate riser-soil interaction and evaluate dynamic responses and the fatigue damage of a steel catenary riser in the touchdown zone. Utilizing the model, numerous riser-soil elements are attached to the steel catenary riser finite elements, in which each simulates local foundation restraint along the riser touchdown zone. The riser-soil interaction plasticity model accounts for the behavior within an allowable combined loading surface. The model will be represented in this paper, allowing simple numerical implementation. More importantly, it can be incorporated within the structural analysis of a steel catenary riser with the finite element method. The applicability of the model is interpreted theoretically and the results are shown through application to an offshore 8.625″ steel catenary riser example. The fatigue analysis results of the liner elastic riser-soil model are also shown. According to the comparison results of the two models, the fatigue life analysis results of the plasticity framework are reasonable and the horizontal effects of the riser-soil interaction can be included.

  17. Fatigue analysis of steel catenary risers based on a plasticity model

    Science.gov (United States)

    Dong, Yongqiang; Sun, Liping

    2015-03-01

    The most critical issue in the steel catenary riser design is to evaluate the fatigue damage in the touchdown zone accurately. Appropriate modeling of the riser-soil resistance in the touchdown zone can lead to significant cost reduction by optimizing design. This paper presents a plasticity model that can be applied to numerically simulate riser-soil interaction and evaluate dynamic responses and the fatigue damage of a steel catenary riser in the touchdown zone. Utilizing the model, numerous riser-soil elements are attached to the steel catenary riser finite elements, in which each simulates local foundation restraint along the riser touchdown zone. The riser-soil interaction plasticity model accounts for the behavior within an allowable combined loading surface. The model will be represented in this paper, allowing simple numerical implementation. More importantly, it can be incorporated within the structural analysis of a steel catenary riser with the finite element method. The applicability of the model is interpreted theoretically and the results are shown through application to an offshore 8.625″ steel catenary riser example. The fatigue analysis results of the liner elastic riser-soil model are also shown. According to the comparison results of the two models, the fatigue life analysis results of the plasticity framework are reasonable and the horizontal effects of the riser-soil interaction can be included.

  18. 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.

  19. Dynamic performance of a pantograph-catenary system with the consideration of the appearance characteristics of contact surfaces

    Institute of Scientific and Technical Information of China (English)

    Ning ZHOU; Wei-hua ZHANG; Rui-ping LI

    2011-01-01

    In this paper,a modeling method for a pantograph-catenary system is put forward to investigate the dynamic contact behavior in space,taking into consideration of the appearance characteristics of the contact surfaces of the pantograph and catenary.The dynamic performance of the pantograph-catenary system,including contact forces,accelerations,and the corresponding spectra,is analyzed.Furthermore,with the modeling method,the influences of contact wire irregularity and the vibration caused by the front pantograph on the rear pantograph for a pantograph-catenary system with double pantographs are investigated.The results show that the appearance characteristics of the contact surfaces play an important role in the dynamic contact behavior.The appearance characteristics should be considered to reasonably evaluate the dynamic performance of the pantograph-catenary system.

  20. Fatigue-damage localization in steel catenary risers

    Directory of Open Access Journals (Sweden)

    Hernández Víctor F.

    2014-06-01

    Full Text Available Risers used to transport crude oil require Structural Integrity Management plans and programs to allow proper functioning during its design life. Cyclic loading may cause fatigue damage during operation of the riser. Structural Health Monitoring (SHM is usually applied to detect damages ahead, and be confirmed by non- destructive inspection using remotely operated vehicles. With the information obtained the riser is assessed and if required mitigating measures can be implemented to prevent failure and disasters such as environmental pollution, and human and economic losses. This paper presents a study to locate fatigue damages using signals of the dynamic response. Numerical study cases were defined for a Steel Catenary Riser (SCR installed in 2000 m water depth. A damage case was considered, decreasing the stiffness value at a specific location of the structure. Dynamic analyses were performed using a commercial software that incorporates nonlinear behavior. The Modal Slope Difference, Modal Slope Difference and Damage Index methods (with two variations were applied to locate damage. Based on results the MSlD yielded the smallest error values in damage location followed by the Damage Index Method for severity values greater than 6%. Results demonstrate the effectiveness of the proposed methodology to locate fatigue damages in deep-water SCRs.

  1. Catenary Action in Rebars Crossing a Casting Joint Loaded in Shear

    DEFF Research Database (Denmark)

    Sørensen, Jesper Harrild; Hoang, Linh Cao; Olesen, John Forbes

    2016-01-01

    Reinforcement crossing a casting joint loaded in shear exhibits catenary action as the shear displacement increases. The load carrying capacity of such a joint is in practice often calculated by use of empirical methods to account for shear friction effects or by a first order plastic analysis if...... and theory is found when reasonable material properties are assumed.......Reinforcement crossing a casting joint loaded in shear exhibits catenary action as the shear displacement increases. The load carrying capacity of such a joint is in practice often calculated by use of empirical methods to account for shear friction effects or by a first order plastic analysis...... if dowel action is included. The strength increase/reserve due to catenary action in the rebars is often neglected; however in some cases it may be necessary to utilize the effect in order to ensure overall structural robustness. This paper presents results of a study, where the increased shear capacity...

  2. Study on A New Mooring System Integrating Catenary with Taut Mooring

    Institute of Scientific and Technical Information of China (English)

    JI Chun-yan; YUAN Zhi-ming; CHEN Ming-lu

    2011-01-01

    Analyzed are the merits and demerits of catenary mooring system and taut mooring system,which are commonly used nowadays.As falling somewhere between these two systems,a new mooring system integrating catenary with taut mooring is proposed.In order to expound and prove the advantages of this new system,the motion performance of a semi-submersible platform is simulated by employing full time domain coupled analysis method.A comparison of the result of new mooring system with that of taut mooring system shows that the movement of the platform using the new type mooring system is smaller than that using the taut mooring system,which ensures a better working condition.Furthermore,the new mooring system is also compatible with the characteristics of catenary mooring system,which eliminates the requirement of anti-uplift capacity of the anchors.

  3. Railroad Lines, Railroads, Published in 2007, Trempealeau County.

    Data.gov (United States)

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

  4. 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...

  5. Experiments and Models of DNA Nano-Catenary Patterns Manipulated by Liquid Flow

    Institute of Scientific and Technical Information of China (English)

    张益; 胡钧; 吴世英; 艾小白; 李民乾

    2002-01-01

    Individual DNA molecules were first stretched by a centrifugal force and adsorbed on a modified mica surface.Then, a liquid flow was guided across the surface along a direction perpendicular to the aligned DNA strands.Some nano-catenary-like patterns of DNA molecules were formed, which were revealed by atomic force microscopy.A physical mechanism called the "s-suspension bridge" model has been presented, by which the features of the catenary-like patterns of DNA molecules can be understood quantitatively quite well.

  6. VT Digital Line Graph Railroads

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This datalayer is comprised of major railroad lines for the state of Vermont. These railroad lines line up well along quadrangle boundaries, but...

  7. Technology to improve catenary voltage stability for a.c. railways; Verfahren zur Verbesserung der Spannungshaltung bei Wechselstrombahnen

    Energy Technology Data Exchange (ETDEWEB)

    Zynovchenko, Andriy [Balfour Beatty Rail GmbH, Offenbach (Germany). Abt. Systemtechnik

    2011-04-15

    Catenary voltage is one of the most important criteria for the design of a railway electrification system. The lowest voltage limits defined by the customer or by EN 50163 and EN 50388 may not be violated. The presented novel technique for improvement of the catenary voltage allows the extension of feeding area of a substation. This makes possible a reduction of the number of substations and enhancement of redundancy grade. (orig.)

  8. 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,...

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

    Science.gov (United States)

    Yao, Jiannan; Xiao, Xingming; Liu, Yao

    2016-03-01

    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.

  10. 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...

  11. 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...

  12. 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.

  13. 78 FR 13747 - Railroad Safety: Advisory Notice Related to Railroad Accidents in Vicinity of Underground Pipelines

    Science.gov (United States)

    2013-02-28

    ... Federal Railroad Administration Railroad Safety: Advisory Notice Related to Railroad Accidents in Vicinity... operators of rail accidents occurring in railroad rights-of-way where pipelines are present and the need to... 114 cars, 19 of which derailed. All of the derailed cars were tank cars carrying denatured...

  14. 电车接触网腕臂的计算%On Calculation of Trolley Catenary Cantilever

    Institute of Scientific and Technical Information of China (English)

    李艾

    2015-01-01

    The "three elements" of electrification railway include catenary, electric locomotive and traction substation. This paper expounded the calculation of the length of cantilever of catenary trolley in railway electrification with a speed of 200 km/h, calculation accuracy of catenary is related to the reliability of the contact wire suspension, so the calculation of catenary is the basic working content of the design , its calculation is mainly divided into the calculation of cantilever and the calculation of the load of catenary. This paper analyzed the methods to calculate the length of cantilever,it ,mainly introduced the calculation of the length of cantilever,the length of transition mast and newel cantilever in the curve seg-ments of the roads.%电气化铁道的“三大元件”分为接触网、电力机车和牵引变电所。本论文论述时速200Km/h高速电气化铁路的接触网电车接触网腕臂的计算,接触网的计算精确程度就关系到接触线悬挂的可靠程度,故接触网计算是设计中基础的工作内容,其计算主要分为腕臂的计算和接触网的负载计算。文章详细分析了腕臂长度的计算方法,重点介绍了路基曲线区段腕臂长度、转换柱和中心柱腕臂长度的计算。

  15. 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....

  16. 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...

  17. 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.

  18. NUMERICAL PREDICTION OF FATIGUE DAMAGE IN STEEL CATENARY RISER DUE TO VORTEX-INDUCED VIBRATION

    Institute of Scientific and Technical Information of China (English)

    GAO Yun; ZONG Zhi; SUN Lei

    2011-01-01

    For studying the characteristics of Steel Catenary Riser (SCR), a simplified pinned-pinned cable model of vibration is established. The natural frequencies, the normalized mode shapes and mode curvatures of the SCR are calculated. The fatigue damage of the SCR can be obtained by applying the modal superposition method combined with the parameters of S - N curve.For analyzing the relation between the current velocity and the SCR's fatigue damage induced by the vortex-induced vibration, ten different current states are evaluated. Then, some useful conclusions are drawn, especially an important phenomenon is revealed that the maximum fatigue damage in the riser usually occurs near the area of the boundary ends.

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. Railroad Lines, Railroads, Published in 2007, Not Applicable scale, Dunn County, WI.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, published at Not Applicable scale, was produced all or in part from Orthoimagery information as of 2007. It is described as 'Railroads'....

  4. 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...

  5. Railroad Lines, Railroads (vacated also), Published in 2009, Norton County Appraisal Office.

    Data.gov (United States)

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

  6. The Status and Prospects of Pantograph and Catenary Dynamic Simulation Technology%弓网动态仿真技术的现状及展望

    Institute of Scientific and Technical Information of China (English)

    关金发; 吴积钦; 李岚

    2015-01-01

    This paper provided an overview of the research on dynamic simulation between pantograph and cate‐nary and the status of its applications , and looked into the future development of dynamic simulation of panto‐graph and catenary system . Existing pantograph‐catenary dynamic simulation methods mainly include virtual simulation and semi‐virtual semi‐physical simulation . The establishment of pantograph‐catenary simulation model mainly depends on continuous equation direct solution method , continuous equation discrete method and direct discrete method . To reduce vibration and prolong lifespan of pantograph and catenary system , simula‐tion will be further developed in optimizing structure of pantograph and catenary , active control of pantograph , and failure recognition of catenary . Finally , the deficiency in current simulation of pantograph and catenary system was analyzed and some suggestions were proposed for future research .%本文概述受电弓与接触网之间的机械动态仿真研究及其应用的现状,并展望弓网动态仿真技术的发展方向。现有弓网动态仿真的手段主要有全虚拟仿真和半实物半虚拟仿真,弓网仿真模型的建立主要有直接解连续方程法、连续方程离散法和直接离散法。为减小弓网振动,延长设备寿命,弓网仿真将向优化弓网结构、受电弓主动控制、弓网故障识别等方面发展。分析现阶段弓网动态仿真技术中的不足,对未来研究工作提出若干建议。

  7. 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

  8. 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

  9. 75 FR 18253 - R.J. Corman Railroad Property, LLC-Acquisition Exemption-NC Railroad, Inc.

    Science.gov (United States)

    2010-04-09

    ... concurrently filed notice of exemption in STB Finance Docket No. 35364, R.J. Corman Railroad Company/Bardstown Line--Lease and Operation Exemption--R.J. Corman Railroad Property, LLC, wherein R.J. Corman Railroad Company/Bardstown Line (RJC Railroad Company) seeks to lease from RJC Railroad Property and to operate...

  10. 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...

  11. 29 CFR 1917.17 - Railroad facilities.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 7 2010-07-01 2010-07-01 false Railroad facilities. 1917.17 Section 1917.17 Labor Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR (CONTINUED) MARINE TERMINALS Marine Terminal Operations § 1917.17 Railroad facilities. (a) Work shall...

  12. 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... incorporating modern ergonomic design standards and technological advancements in construction. II. Statutory... railroad. Many of the modern railcar types that are presently being built to handle railroad traffic do...

  13. 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...

  14. Multiaxial Fatigue Analysis on Reeled Deepwater Steel Catenary Risers with Girth Weld Defects

    Institute of Scientific and Technical Information of China (English)

    杨和振; 丁金鸿; 李清泉; 李华军

    2014-01-01

    In the present study, we simulated the reel-lay installation process of deepwater steel catenary risers (SCRs) using the finite element method and proposed multiaxial fatigue analysis for reeled SCRs. The reel-lay method is one of the most efficient and economical pipeline installation methods. However, material properties of reeled risers may change, especially in the weld zone, which can affect the fatigue performance. Applying finite element analysis (FEA), we simulated an installation load history through the reel, aligner, and straightener and analyzed the property variations. The impact of weld defects during the installation process, lack of penetration and lack of fusion, was also discussed. Based on the FEA results, we used the Brown-Miller criterion combined with the critical plane approach to predict the fatigue life of reeled and non-reeled models. The results indicated that a weld defect has a significant influence on the material properties of a riser, and the reel-lay method can significantly reduce the fatigue life of SCRs. The analysis conclusion can help designers understand the mechanical performance of welds during reel-lay installation.

  15. Multiaxial fatigue analysis on reeled deepwater steel catenary risers with girth weld defects

    Science.gov (United States)

    Yang, He-zhen; Ding, Jin-hong; Li, Qing-quan; Li, Hua-jun

    2014-12-01

    In the present study, we simulated the reel-lay installation process of deepwater steel catenary risers (SCRs) using the finite element method and proposed multiaxial fatigue analysis for reeled SCRs. The reel-lay method is one of the most efficient and economical pipeline installation methods. However, material properties of reeled risers may change, especially in the weld zone, which can affect the fatigue performance. Applying finite element analysis (FEA), we simulated an installation load history through the reel, aligner, and straightener and analyzed the property variations. The impact of weld defects during the installation process, lack of penetration and lack of fusion, was also discussed. Based on the FEA results, we used the Brown-Miller criterion combined with the critical plane approach to predict the fatigue life of reeled and non-reeled models. The results indicated that a weld defect has a significant influence on the material properties of a riser, and the reel-lay method can significantly reduce the fatigue life of SCRs. The analysis conclusion can help designers understand the mechanical performance of welds during reel-lay installation.

  16. 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.

  17. Dynamic response analysis of the equivalent water depth truncated point of the catenary mooring line

    Science.gov (United States)

    Zhang, Huo-ming; Kong, Ling-bin; Guan, Wei-bing; Huang, Sai-hua; Fang, Gui-sheng

    2017-03-01

    The real-time computer-controlled actuators are used to connect the truncated parts of moorings and risers in the active hybrid model testing system. This must be able to work in model-scale real time, based on feedback input from the floater motions. Thus, mooring line dynamics and damping effects are artificially simulated in real time, based on a computer-based model of the problem. In consideration of the nonlinear characteristics of the sea platform catenary mooring line, the equations of the mooring line motion are formulated by using the lumped-mass method and the dynamic response of several points on the mooring line is investigated by the time and frequency domain analysis method. The dynamic response of the representative point on the mooring line is analyzed under the condition of two different corresponding upper endpoint movements namely sine wave excitation and random wave excitation. The corresponding laws of the dynamic response between the equivalent water depth truncated points at different locations and the upper endpoint are obtained, which can provide technical support for further study of the active hybrid model test.

  18. 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.

  19. Multiaxial fatigue analyses of stress joints for deepwater steel catenary risers

    Science.gov (United States)

    Zheng, Wen-qing; Yang, He-zhen; Li, Qing-quan

    2012-12-01

    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 first, 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.

  20. 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.

  1. 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...

  2. 76 FR 39155 - R.J. Corman Railroad Property, LLC-Acquisition Exemption-NC Railroad, Inc

    Science.gov (United States)

    2011-07-05

    ... Surface Transportation Board R.J. Corman Railroad Property, LLC--Acquisition Exemption--NC Railroad, Inc R... acquisition transaction is related to the notice of exemption in Docket No. FD 35364, R. J. Corman Railroad Company/Bardstown Line-- Lease and Operation Exemption--R. J. Corman Railroad Property, LLC, in which R....

  3. 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

    ... 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... from R. J. Corman Railroad Property, LLC (RJC Railroad Property), and operate approximately 42...

  4. 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...

  5. 77 FR 38884 - Sisseton Milbank Railroad Company-Acquisition and Operation Exemption-SLA Property Management...

    Science.gov (United States)

    2012-06-29

    ... Surface Transportation Board Sisseton Milbank Railroad Company--Acquisition and Operation Exemption--SLA Property Management Limited Partnership and Sisseton Milbank Railroad, Inc. Sisseton Milbank Railroad... from SLA Property Management Limited Partnership and Sisseton Milbank Railroad, Inc., their...

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

    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。

  7. 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...

  8. 75 FR 57553 - Indexing the Annual Operating Revenues of Railroads

    Science.gov (United States)

    2010-09-21

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Indexing the Annual Operating Revenues of Railroads The Surface... indexing methodology insures that railroads are classified based on real business expansion and not...

  9. 76 FR 52384 - Indexing the Annual Operating Revenues of Railroads

    Science.gov (United States)

    2011-08-22

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Indexing the Annual Operating Revenues of Railroads The Surface... indexing methodology insures that railroads are classified based on real business expansion and not...

  10. 77 FR 34125 - Indexing the Annual Operating Revenues of Railroads

    Science.gov (United States)

    2012-06-08

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Indexing the Annual Operating Revenues of Railroads The Surface... indexing methodology insures that railroads are classified based on real business expansion and not...

  11. 78 FR 21007 - Indexing the Annual Operating Revenues of Railroads

    Science.gov (United States)

    2013-04-08

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF TRANSPORTATION Surface Transportation Board Indexing the Annual Operating Revenues of Railroads The Surface... indexing methodology insures that railroads are classified based on real business expansion and not...

  12. 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...

  13. 76 FR 10430 - Railroad Cost of Capital-2010

    Science.gov (United States)

    2011-02-24

    ... Surface Transportation Board Railroad Cost of Capital--2010 AGENCY: Surface Transportation Board. ACTION: Notice of decision instituting a proceeding to determine the railroad industry's 2010 cost of capital. SUMMARY: The Board is instituting a proceeding to determine the railroad industry's cost of capital...

  14. 77 FR 6625 - Railroad Cost of Capital-2011

    Science.gov (United States)

    2012-02-08

    ... 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 capital. SUMMARY: The Board is instituting a proceeding to determine the railroad industry's cost of capital...

  15. 78 FR 13933 - Railroad Cost of Capital-2012

    Science.gov (United States)

    2013-03-01

    ... Surface Transportation Board Railroad Cost of Capital--2012 AGENCY: Surface Transportation Board, DOT... capital. SUMMARY: The Board is instituting a proceeding to determine the railroad industry's cost of capital for 2012. The decision solicits comments on the following issues: (1) The railroads' 2012...

  16. 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'....

  17. 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...

  18. 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...

  19. 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 (city),...

  20. Soviet Railroad Troops: An Updated Review.

    Science.gov (United States)

    1980-01-01

    Lecture presented at the United States Army Russian Institute, 6 December 1979. 39S. Troyan , "Baikal-Amur Railroad, A Road of Courage", Soviet Military...34. (Bridges On The BAM) Tyl i Snabzheniye, No. 9, 1979, pp.27-28. "Transport zimoy". (Transport In Winter) Pravda, 24 January 1978, p.1 . Troyan , S

  1. 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...

  2. 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...

  3. Design of TY5 Type Catenary Working Car Bogie%TY5型接触网作业车转向架的设计

    Institute of Scientific and Technical Information of China (English)

    曹亚玲

    2015-01-01

    介绍了最高运行速度为100 km/h的T Y5型接触网作业车转向架的主要结构特点、技术性能及相关技术参数。%This paper describes the main structural features of TY5 type catenary working car bogie , as well as its technical performance and related technical parameters .

  4. 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.

  5. 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

  6. Visual monitoring of railroad grade crossing

    Science.gov (United States)

    Sheikh, Yaser A.; Zhai, Yun; Shafique, Khurram; Shah, Mubarak A.

    2004-09-01

    There are approximately 261,000 rail crossings in the United States according to the studies by the National Highway Traffic Safety Administration (NHTSA) and Federal Railroad Administration (FRA). From 1993 to 1998, there were over 25,000 highway-rail crossing incidents involving motor vehicles - averaging 4,167 incidents a year. In this paper, we present a real-time computer vision system for the monitoring of the movement of pedestrians, bikers, animals and vehicles at railroad intersections. The video is processed for the detection of uncharacteristic events, triggering an immediate warning system. In order to recognize the events, the system first performs robust object detection and tracking. Next, a classification algorithm is used to determine whether the detected object is a pedestrian, biker, group or a vehicle, allowing inferences on whether the behavior of the object is characteristic or not. Due to the ubiquity of low cost, low power, and high quality video cameras, increased computing power and memory capacity, the proposed approach provides a cost effective and scalable solution to this important problem. Furthermore, the system has the potential to significantly decrease the number of accidents and therefore the resulting deaths and injuries that occur at railroad crossings. We have field tested our system at two sites, a rail-highway grade crossing, and a trestle located in Central Florida, and we present results on six hours of collected data.

  7. Study for a stress joint at the top of a SCR (Steel Catenary Risers); Estudo de 'stress joints' para o topo de um SCR (Steel Catenary Risers)

    Energy Technology Data Exchange (ETDEWEB)

    Siqueira, Elizabeth Frauches Netto; Andrade, Edmundo Queiroz de [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil)

    2008-07-01

    Steel Catenary Risers, SCRs, need a top connection that bears the force transmitted to the platform. Essentially, two types of connections exist on the market: flex joint and stress joint (SJ). PETROBRAS has a SCR with top connection of flex joint type installed on one of its platforms; however, the company has been studying SJ as an option out of SCR top connection. A stress joint is a monolithic structure and can be inspected during manufacture and service, without so many difficult. They are metal structures composed of a uniform bore inserted in a tapered wall that increases gradually to support the force coming from the riser. The objective of this paper is to present a SJ sensitivity study for a production SCR supposedly hardwired to a unit of production of the semi-submersible type. The data used is based on real SCR data. For this study, global and local analyses were conducted for some models of stress joints, varying some parameters such as material and dimensions, allowing for the verification of some of the critical points of this type of connection. The results obtained will be shown in graphs and tensions maps to illustrate comparatively the critical points of the models analyzed. (author)

  8. 75 FR 4904 - Railroad Safety Advisory Committee (RSAC); Working Group Activity Update

    Science.gov (United States)

    2010-01-29

    ... Federal Railroad Administration Railroad Safety Advisory Committee (RSAC); Working Group Activity Update... of Railroad Safety Advisory Committee (RSAC) Working Group Activities. SUMMARY: The FRA is updating its announcement of RSAC's Working Group activities to reflect its current status. FOR...

  9. 77 FR 58608 - Railroad Safety Advisory Committee (RSAC); Working Group Activity Update

    Science.gov (United States)

    2012-09-21

    ... Federal Railroad Administration Railroad Safety Advisory Committee (RSAC); Working Group Activity Update... of Railroad Safety Advisory Committee (RSAC) Working Group Activities. SUMMARY: FRA is updating its announcement of the RSAC Working Group activities to reflect its current status. FOR FURTHER...

  10. 75 FR 51525 - Railroad Safety Advisory Committee (RSAC); Working Group Activity Update

    Science.gov (United States)

    2010-08-20

    ... Federal Railroad Administration Railroad Safety Advisory Committee (RSAC); Working Group Activity Update... of Railroad Safety Advisory Committee (RSAC) Working Group Activities. SUMMARY: The FRA is updating its announcement of RSAC's Working Group activities to reflect its current status. FOR...

  11. 75 FR 76070 - Railroad Safety Advisory Committee (RSAC); Working Group Activity Update

    Science.gov (United States)

    2010-12-07

    ... Federal Railroad Administration Railroad Safety Advisory Committee (RSAC); Working Group Activity Update... of Railroad Safety Advisory Committee (RSAC) Working Group Activities. SUMMARY: The FRA is updating its announcement of RSAC's Working Group activities to reflect its current status. FOR...

  12. 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... incorporating modern ergonomic design standards and technological advancements in construction. II. Statutory... railroad. Many of the modern railcar types that are presently being built to handle railroad traffic do...

  13. 49 CFR 1.49 - Delegations to Federal Railroad Administrator.

    Science.gov (United States)

    2010-10-01

    ... in freight rates and passenger fares for the Alaska Railroad, without power to redelegate authority for general changes in freight rates and passenger fares. (j) Promote and undertake research and... by the Crime Control Act of 1990 (Pub. L. 101-647) as it relates to a railroad police...

  14. A procedure to identify and to assess risk parameters in a SCR (Steel Catenary Riser) due to the fatigue failure

    Energy Technology Data Exchange (ETDEWEB)

    Stefane, Wania [Universidade Estadual de Campinas (UNICAMP), Campinas, SP (Brazil). Faculdade de Engenharia Mecanica; Morooka, Celso K. [Universidade Estadual de Campinas (UNICAMP), Campinas, SP (Brazil). Dept. de Engenharia de Petroleo. Centro de Estudos de Petroleo; Pezzi Filho, Mario [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil). E and P. ENGP/IPMI/ES; Matt, Cyntia G.C.; Franciss, Ricardo [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil). Centro de Pesquisas (CENPES)

    2009-12-19

    The discovery of offshore fields in ultra deep water and the presence of reservoirs located in great depths below the seabed requires innovative solutions for offshore oil production systems. Many riser configurations have emerged as economically viable technological solutions for these scenarios. Therefore the study and the development of methodologies applied to riser design and procedures to calculate and to dimension production risers, taken into account the effects of mete ocean conditions, such as waves, current and platform motion in the fatigue failure is fundamental. The random nature of these conditions as well as the mechanical characteristics of the riser components are critical to a probabilistic treatment to ensure the greatest reliability for risers and minimum risks associated to different aspects of the operation like the safety of the installation, economical concerns and the environment. The current work presents a procedure of the identification and the assessment of main parameters of risk when considering fatigue failure. Static and dynamic behavior of Steel Catenary Riser (SCR) under the effects of mete ocean conditions and uncertainties related to total cumulative damage (Miner-Palmgren's rule) are taken into account. The methodology adopted is probabilistic and the approach is analytical. The procedure is based on the First Order Reliability Method (FORM) which usually presents low computational effort and acceptable accuracy. The procedure suggested is applied for two practical cases, one using data available from the literature and the second with data collected from an actual Brazilian offshore field operation. For both cases, results of the probability of failure due to fatigue were obtained for different locations along the SCR length connected to a semi-submersible platform. From these results, the sensitivity of the probability of failure due to fatigue for a SCR could be verified, and the most effective parameter could also be

  15. 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...

  16. 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...

  17. 49 CFR 220.21 - Railroad operating rules; radio communications; recordkeeping.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Railroad operating rules; radio communications...) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION RAILROAD COMMUNICATIONS Radio and Wireless Communication Procedures § 220.21 Railroad operating rules; radio communications; recordkeeping. (a)...

  18. 20 CFR 330.4 - Last railroad employment in the base year.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 1 2010-04-01 2010-04-01 false Last railroad employment in the base year. 330.4 Section 330.4 Employees' Benefits RAILROAD RETIREMENT BOARD REGULATIONS UNDER THE RAILROAD UNEMPLOYMENT INSURANCE ACT DETERMINATION OF DAILY BENEFIT RATES § 330.4 Last railroad employment in the...

  19. 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.

  20. 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.

  1. 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...

  2. PTSD in railroad drivers under the Federal employers' liability act.

    Science.gov (United States)

    Weiss, Kenneth J; Farrell, J Michael

    2006-01-01

    Railroad and subway drivers can experience psychological trauma when trains strike or nearly miss other trains, motor vehicles, or persons or become instruments of death. Derailments, collisions, and suicides on the tracks can induce feelings of helplessness, horror, guilt, and anxiety in the drivers. Although some drivers experience acute stress disorder (ASD) or post-traumatic stress disorder (PTSD), their conditions are not always acknowledged within the occupational setting. The world literature suggests that PTSD has been an increasing focus of concern, giving rise to detailed intervention protocols. In the United States, the Federal Employers' Liability Act (FELA) governs the adjudication of work-related injuries among railroad employees. In practice, it is difficult for railroad drivers with PTSD to receive benefits if there was no "direct impact" linked to the employer's negligence. In this article, the authors review the literature on PTSD among railroad drivers, discuss relevant case law, and explain how the FELA militates against some employees with PTSD.

  3. 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.

  4. 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...

  5. 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.

  6. Railroad Lines, Railroad Lines, Published in 2000, 1:2400 (1in=200ft) scale, Columbia County Board of Commissioners.

    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 Road Centerline Files information as of 2000. It is described as...

  7. 地铁车辆段上盖平台下接触网悬挂固定研究%Study on Suspension and Fixing of Catenary under Upper Cover Platform of Metro Vehicle Depot

    Institute of Scientific and Technical Information of China (English)

    侯茂华

    2013-01-01

    Research purposes:The suspension and fixing of the catenary under upper cover platform are different from those with the existing methods because they need to consider the impact of upper cover platform.Therefore,it is necessary to do the research on the impacts of the civil engineering requirements,construction difficulty,installation period and maintenance convenience requirement on the suspension and fixing of the catenary under the upper cover platform to determine the available catenary suspension and fixing modes under the upper cover platform.Research conclusions:The research was done on the suspension and fixing of the catenary under the upper cover platform of the Tanglang Vehicle Depot of Shenzhen metro on learning the suspension and fixing modes of the catenary in the high-speed railway tunnel.From the research,it is concluded:(1) The crossing suspension mode should be adopted to the catenary under upper cover platform of metro vehicle depot.(2) The structure of the embedded C shaped steel (channel) should be adopted to the catenary under the upper cover platform on determination of the technical parameters and requirements of the C shaped steel embedded parts.(3) The design plans of the various embedded parts corresponding to the contacting suspension and fixing (crossing fixing cable,hoist cable and cantilever,etc) and installation of the anchor and isolation switch were determined on the research.(4) From the angle of the project management,the analysis was made for the advantages of the structure of embedded C-shaped steel mode for the catenary's suspension and fixing.The proposal was made that this mode would be widely used in the catenary engineering.%研究目的:与地铁车辆段接触网既有安装方式不一样,上盖平台下接触网悬挂固定需考虑上盖平台影响,结合土建要求、施工难度、安装工期影响及维护便利等因素进行研究,进而确定适应上盖平台结构特点的悬挂固定方案.研究结论:

  8. 接触网施工分析及问题解决方案%Analysis and Solutions of the Catenary Construction Problem

    Institute of Scientific and Technical Information of China (English)

    关韶玉; 吕玉梅

    2015-01-01

    通过对朔黄铁路黄骅南站3.5亿吨扩能改造接触网施工整体方案的介绍,分析整个施工过程的阶段性特点和制约、困难因素,提出相应的解决方案,为在铁路既有线节点车站电气化改造施工提供一定的借鉴作用。%In this paper, the overall scheme of the catenary construction of the 350 million -ton capacity expansion revamping at the Huanghua South Station of Shuohuang Railway is introduced. Characteristics and constraints in different stages and difficulties of the whole construction process are analyzed and then the corresponding solutions are put forward, which will provide certain reference for the electrification transformation construction in the existing railway stations.

  9. TY5KM型接触网作业车低速走行系统%Low Speed Running System of Type TY5KM Catenary Work Vehicle

    Institute of Scientific and Technical Information of China (English)

    臧坤

    2015-01-01

    This paper mainly introduces the main structure, the technical parameters and the main characteristic of the low-speed system of the model TY5KM catenary working car. On the basic of the original power transmission system, the model TY5KM catenary wording car increase a line construction work the low-speed system, the walking speed can stepless speed regulation in 0~10 km/h, implemented the two-way low–speed running, it also on the operation platform and the driv-er’s cab control the low-speed system manipulation. The low-speed system can switch with the main power transmission, adopt pneumatic control oil pump, the motor clutch and when a failure hand control on-off control.%介绍了TY5KM型接触网作业车低速走行系统的主要结构、主要技术参数及主要特点。 TY5KM接触网作业车在原有动力传动系统的基础上加设一套施工作业低速走行系统。走行速度在0~10 km/h范围内无级调速,实现了作业车双向的低速走行,亦可实现在作业车平台上及司机室内控制低速走行操纵。低速走行与主动力传动能够可靠的切换,采用气动操纵油泵、马达离合及故障时手动操纵控制离合。

  10. 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...

  11. 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.

  12. 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).

  13. 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

  14. 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

  15. 77 FR 50323 - Railroad Workplace Safety; Roadway Worker Protection Miscellaneous Revisions (RRR)

    Science.gov (United States)

    2012-08-20

    ... requirements, either to remedy perceived shortcomings in the railroads' rules to emphasize the importance of... Railroad Passengers (NARP); National Association of Railway Business Women;* National Conference of Firemen... Association (SMWIA); Tourist Railway Association, Inc.; Transport Canada;* Transport Workers Union of...

  16. 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...

  17. 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...

  18. 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...

  19. 78 FR 65422 - Notice of Funding Availability and Solicitation of Applications for Grants Under the Railroad...

    Science.gov (United States)

    2013-10-31

    ... estimate total project costs and explain how the affected Class II and Class III railroad will finance the... reporting (described in Appendices 1 and 2). 8. For the railroad(s) operating on the infrastructure proposed... estimate site and right(s)-of-way acquisition costs (this includes purchase, lease, and/or easements)....

  20. 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...

  1. 78 FR 65040 - BNSF Railway Company, CBEC Railway Inc., Iowa Interstate Railroad, Ltd., and Union Pacific...

    Science.gov (United States)

    2013-10-30

    ... Surface Transportation Board BNSF Railway Company, CBEC Railway Inc., Iowa Interstate Railroad, Ltd., and Union Pacific Railroad Company--Joint Relocation Project Exemption--In Council Bluffs, Iowa On September 30, 2013, BNSF Railway Company (BNSF), CBEC Railway Inc. (CBEC), Iowa Interstate Railroad, Ltd....

  2. 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...

  3. 78 FR 2481 - Watco Holdings, Inc., Watco Railroad Company Holdings, Inc., & Watco Acquisition Sub, Inc...

    Science.gov (United States)

    2013-01-11

    ... Acquisition Sub, Inc.--Acquisition of Control Exemption--Ann Arbor Railroad, Inc. Watco Holdings, Inc. (Watco Holdings), Watco Railroad Company Holdings, Inc. (Watco Railroad), and Watco Acquisition Sub, Inc. (Merger Sub), all noncarriers, have filed a verified notice of exemption under 49 CFR 1180.2(d)(2) for...

  4. 75 FR 27112 - Solicitation of Applications and Notice of Funding Availability for the FRA Railroad System...

    Science.gov (United States)

    2010-05-13

    ..., Attention: Melissa Shurland, Office of Research and Development, Mail Stop 20, Room W36-429, 1200 New Jersey... alternatives to these products. Currently in the railroad industry petroleum-based fuel and lubricants are used... FRA Railroad System Issues Research and Development Program AGENCY: Federal Railroad...

  5. 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:…

  6. Second-Grade Journeys on the Underground Railroad.

    Science.gov (United States)

    Crump-Stenberg, Linda; Beilke, Patricia F.

    1999-01-01

    Describes a curriculum used in a second grade classroom to expose the predominantly white students to the culture and experiences of African Americans through a study of slavery and the Underground Railroad. Includes a bibliography of African folk tales and literature related to the African American experience. (SLD)

  7. 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...... the productivity of railway operations and aiming to improve both may be a feasible strategy. © 2013 Elsevier Ltd. All rights reserved....

  8. 42 CFR 408.42 - Deduction from railroad retirement benefits.

    Science.gov (United States)

    2010-10-01

    ... SERVICES MEDICARE PROGRAM PREMIUMS FOR SUPPLEMENTARY MEDICAL INSURANCE Deduction From Monthly Benefits § 408.42 Deduction from railroad retirement benefits. (a) Responsibility for deductions. If an enrollee... benefits or a civil service annuity, or both. (b) Action when benefits are suspended. If the...

  9. 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...

  10. 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...

  11. 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...

  12. 75 FR 7152 - Stillwater Central Railroad, Inc.-Lease and Operation Exemption-Hollis & Eastern Railroad L.L.C.

    Science.gov (United States)

    2010-02-17

    ... verified notice of exemption under 49 CFR 1150.41 to lease and to operate, pursuant to a lease agreement... Surface Transportation Board Stillwater Central Railroad, Inc.--Lease and Operation Exemption--Hollis... and 10 copies of all pleadings, referring to STB Finance Docket No. 35217, must be filed with...

  13. 76 FR 28850 - Northern Plains Railroad, Inc.-Intra-Corporate Family Operation Exemption-Mohall Central Railroad...

    Science.gov (United States)

    2011-05-18

    ... milepost 67.5, near Calvin. NPR, MHC, and a third Class III rail carrier, Mohall Railroad, Inc., are... segment of its line between milepost 67.5, near Calvin, N.D., and milepost 72.9, at Sarles) and...

  14. 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。

  15. 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)

  16. 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

  17. 49 CFR Appendix A to Part 237 - Supplemental Statement of Agency Policy on the Safety of Railroad Bridges

    Science.gov (United States)

    2010-10-01

    ... Safety of Railroad Bridges A Appendix A to Part 237 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION BRIDGE SAFETY STANDARDS... Railroad Bridges A Statement of Agency Policy on the Safety of Railroad Bridges was originally published...

  18. 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,...

  19. Subgrade strengthening of roads and railroads as planar geotextile reinforcement

    Directory of Open Access Journals (Sweden)

    Gradkowski Krzysztof

    2016-01-01

    Full Text Available The proper quality of construction of roads and railroads can be achieved by strengthening the of the foundation bed. Measurements and tests the number and order of the layers of geotextile layer of ground indicate the effectiveness of technical solutions involving the reinforcement laid horizontally. The offer technical use of the geotextile reinforcement in the ground layer substrates of roads indicates the possible effectiveness of the strengthening of the subsoil of roads and is also included in this article.

  20. Subgrade strengthening of roads and railroads as planar geotextile reinforcement

    OpenAIRE

    Gradkowski Krzysztof

    2016-01-01

    The proper quality of construction of roads and railroads can be achieved by strengthening the of the foundation bed. Measurements and tests the number and order of the layers of geotextile layer of ground indicate the effectiveness of technical solutions involving the reinforcement laid horizontally. The offer technical use of the geotextile reinforcement in the ground layer substrates of roads indicates the possible effectiveness of the strengthening of the subsoil of roads and is also incl...

  1. 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

  2. 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.

  3. 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.

  4. 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.

  5. Optimal PowerFlow (OPF) Model with Unified AC-DC Load Flow and Optimal Commitmentfor an AC-catenary Railway Power Supply System (RPSS) fed by aHigh Voltage DC (HVDC) transmission line

    OpenAIRE

    Abrahamsson, Lars; Östlund, Stefan; Söder, Lennart

    2012-01-01

    In this paper an alternative railway power systems design based on an HVDC feeder is studied. The HVDC feeder is connected to the catenary by converters. Such an HVDC line is also appropriate for DC-fed railways and AC-fed railways working at public frequency. A unit commitment optimal power flow model has been developed and is applied on a test system. In this paper, the model is presented in detail. The model, in the form of an MINLP program, uses unified AC-DC power flow to minimize the en...

  6. 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.

  7. Dynamic Reliability Analysis of Catenary under Wind Load%风荷载作用下接触网结构动力可靠性分析

    Institute of Scientific and Technical Information of China (English)

    曹树森; 柯坚; 刘晓红; 邓斌; 马佳俊

    2011-01-01

    针对直接利用Monte Carlo方法进行接触网结构抗风可靠性分析耗时长的缺点,将有限元数值分析、高性能的RBF神经网络和Monte Carlo方法有机结合,提出了分析接触网结构抗风可靠性的FE-RBF-Monte Carlo方法,并用实例证明了该方法的可行性.分析表明:该方法精度高、简便易行,有效解决了直接利用Monte Carlo方法耗时长的问题,为复杂的接触网结构动力可靠性分析提供了一条新途径.%To improve effectively the shortcoming of time-consuming large in using directly Monte Carlo method, the theory of artificial neural networks and Monte Carlo algorithm combined with analysis of finite elements (simplified as the FE-RBF-Monte Carlo method) were applied to dynamic reliability analysis under wind load. It is done to organically combine with the finite element numerical analysis, high-powered RBF-NN and Monte Carlo method, then the feasibility of this method was proved by an example. The analysis indicates that the method is feasible, effective, and of high accuracy; it improves effectively the shortcoming of time-consuming large in using directly Monte Carlo method. The method provides a new way for dynamic reliability analysis of a complex catenary.

  8. Monitoring Technology of Installation of Offshore Platform Steel Catenary Riser%海洋平台钢悬链线立管安装监测技术研究

    Institute of Scientific and Technical Information of China (English)

    李丽玮; 何宁; 王辉

    2011-01-01

    On the basis of complex natural environment,this paper researchs vessel motion,heave compensation of ship location and riser shape while laying and lifting. With the main ponit-ROV sonar monitoring system, study around touch down point of pipeline, steel catenary riser shapes and seabed topography were made. And then these paraments to guide analysis of riser installation process was used. Finally complete monitoring technologies for steel catenary riser installation was formed,to provide technical support for the development of offshore oil and innovation of monitoring technology for riser installation in China.%为在深海复杂工况下把平台立管安装到位,需对安装过程进行监测.综合考虑船舶位移、升沉补偿、立管吊装变形,以声纳和远程操作潜水器(ROV)监测系统为技术支撑,监测管线着陆区位置、悬链线形态、以及海底地形等参数,指导立管的安装过程.形成一套完善的钢悬链线立管安装监测技术,促进我国深海石油的发展.

  9. 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,...

  10. Railroad Lines, Separate layers for active and inactive railroad lines for an eleven county region. Data is a subset from NCOneMap., Published in 2007, NC Dept of Commerce - DCA.

    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 'Separate layers for active and inactive railroad...

  11. Railroad Bridges and Culverts, All railroad bridges 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 Bridges and Culverts dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Field Survey/GPS information as of 2009. It is...

  12. Railroad Lines, Effingham County Railroad Lines, Published in 1997, 1:12000 (1in=1000ft) scale, Effingham County Board Of Commissioners.

    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 Road Centerline Files information as of 1997. It is described...

  13. Railroad Lines, Lyon County Railroads, Published in 2010, 1:24000 (1in=2000ft) scale, City of Emporia/Lyon 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 Road Centerline Files information as of 2010. It is described...

  14. Railroad Lines, Tiger 2000 Railroad layer for the counties we serve., Published in 2000, 1:100000 (1in=8333ft) scale, Prairie Land Electric COOP, Inc..

    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 Road Centerline Files information as of 2000. It is described...

  15. 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.

  16. 77 FR 24233 - Actuarial Advisory Committee With Respect to the Railroad Retirement Account; Notice of Public...

    Science.gov (United States)

    2012-04-23

    ... hold a meeting on May 30, 2012, at 9:30 a.m. at the office of the Chief Actuary of the U.S. Railroad... communications or notices to the RRB Actuarial Advisory Committee, c/o Chief Actuary, U.S. Railroad...

  17. 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...

  18. 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...

  19. 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...

  20. 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,...

  1. 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...

  2. 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...

  3. 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...

  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. 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)...

  6. 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...

  7. 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...

  8. 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...

  9. 20 CFR 216.42 - How a private railroad pension affects a supplemental annuity.

    Science.gov (United States)

    2010-04-01

    ... pension affects a supplemental annuity. (a) What is a private railroad pension. The Board determines... the employee's supplemental annuity. A private pension for purposes of this subpart is a plan that: (1... pension plan under this section. (d) Effective date of private railroad pension for supplemental...

  10. 76 FR 25588 - Hours of Service Exception for Railroad Signal Employees

    Science.gov (United States)

    2011-05-05

    ... Railroad Signal Employees AGENCY: Federal Motor Carrier Safety Administration (FMCSA), DOT. ACTION: Final... employees operating commercial motor vehicles (CMVs) in connection with railroad signal work. This is in... statutory exemption applicable to signal employees and eliminate the potential for issuance of...

  11. 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...

  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. 77 FR 25910 - National Trails System Act and Railroad Rights-of-Way

    Science.gov (United States)

    2012-05-02

    ... property for restoration or reconstruction of rail service. 49 CFR 1152.29(c)(2), (d)(2); Birt, 90 F.3d at....3d 580, 582-83 (DC Cir. 1996). Under 16 U.S.C. 1247(d), the STB must ``preserve established railroad... that, if such interim use is subject to restoration or reconstruction for railroad purposes,...

  14. 78 FR 46682 - CSX Transportation, Inc.-Joint Use-Louisville & Indiana Railroad Company, Inc.

    Science.gov (United States)

    2013-08-01

    ... jointly use the Line with L&I, CSXT seeks to acquire and use a perpetual, non-exclusive freight railroad... perpetual, non-exclusive freight railroad operating easement over the Line. In order to accomplish this... arrangement is perpetual and is based on the Transaction Agreement. L&I would also be charged for...

  15. 78 FR 60375 - Rogue Valley Terminal Railroad Corporation-Corporate Family Transaction Exemption

    Science.gov (United States)

    2013-10-01

    ... TRANSPORTATION Surface Transportation Board Rogue Valley Terminal Railroad Corporation--Corporate Family..., has filed a verified notice of exemption under 49 CFR 1180.2(d)(3) for a corporate family transaction in which Rogue Valley will transfer ownership of track and right-of-way of a line of railroad...

  16. Santa Fe Indian Camp, House 21, Richmond, California: Persistence of Identity among Laguna Pueblo Railroad Laborers, 1945-1982.

    Science.gov (United States)

    Peters, Kurt

    1995-01-01

    In 1880 the Laguna people and the predecessor of the Atchison, Topeka, and Santa Fe Railroad reached an agreement giving the railroad unhindered right-of-way through Laguna lands in exchange for Laguna employment "forever." Discusses the Laguna-railroad relationship through 1982, Laguna labor camps in California, and the persistence of…

  17. 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...

  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 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...

  20. 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...

  1. 76 FR 26682 - Study on Protection of Certain Railroad Risk Reduction Data From Discovery or Use in Litigation

    Science.gov (United States)

    2011-05-09

    ... Federal Railroad Administration 49 CFR Chapter II Study on Protection of Certain Railroad Risk Reduction Data From Discovery or Use in Litigation AGENCY: Federal Railroad Administration (FRA), Department of..., list, or data compiled or collected for the purpose of evaluating, planning, or implementing a...

  2. 75 FR 53370 - RailAmerica, Inc., Palm Beach Holding, Inc., RailAmerica Transportation Corp., Central Railroad...

    Science.gov (United States)

    2010-08-31

    ...., Central Railroad Company of Indianapolis, Chicago Ft. Wayne and Eastern Railroad Division, Fortress... Company of Indianapolis (CERA); Chicago Ft. Wayne and Eastern Railroad Division (CFE); Fortress Investment... Louis E. Gitomer, Esq., Law Offices of Louis E. Gitomer, 600 Baltimore Avenue, Suite 301, Towson,...

  3. 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.

  4. 深海钢悬链立管应力接头的多轴疲劳分析%Multiaxial fatigue analysis of the stress joint for a deepwater steel catenary riser

    Institute of Scientific and Technical Information of China (English)

    郑文青; 杨和振

    2011-01-01

    The object of this paper is to present a more accurate and useful method for fatigue analysis and life prediction for a stress joint of a deepwater steel catenary riser. The stress joint was used to connect the riser and platform , and it was subjected to ocean environmental loadings and erosion; thus, the fatigue problem is critical. First, global time domain dynamic analysis of the steel catenary riser was performed, and then local analysis was performed for the stress joint. Finally, the fatigue life of the stress joint was evaluated according to the multiaxial fatigue theory, and a preliminary parametric study was also carried out. Results show that taking stress value of the structure as the only criterion is not enough, and fatigue analysis is necessary when the structure is subjected to an alternating load. Compared with uniaxial analysis, multiaxial fatigue analysis can reflect the damage of the structure more realistically. Especially for deepwater steel catenary risers, multiaxial fatigue problems should be given close attention.%为了探讨对深海钢悬链立管顶端应力接头更加准确而有效的疲劳分析方法,采用了多轴疲劳理论进行寿命估算.应力接头连接立管和平台长期处于海洋环境载荷及海洋腐蚀之下,非线性特征明显,疲劳问题突出.首先对钢悬链立管进行海洋环境载荷下的时域总体动力分析,然后对应力接头进行局部分析,最后利用多轴疲劳理论对应力接头进行寿命估算和初步的参数研究.研究结果表明,以应力值作为单一的结构安全性评判标准是不够的,在交变载荷作用下疲劳分析是必要的.相比单轴疲劳分析而言,多轴疲劳分析能更加真实的反应结构的疲劳损伤情况,尤其在深海钢悬链立管结构分析中,多轴疲劳问题应给予充分的关注.

  5. Pantograph-catenary Surface Heat Flow Analysis and Calculations Based on Mechanical and Electrical Characteristics%计及机械和电气特性的弓网表面热流分析和计算

    Institute of Scientific and Technical Information of China (English)

    王英; 刘志刚; 黄可; 高仕斌

    2014-01-01

    针对弓网高额取流所产生的高温热侵蚀,提出一种弓网表面热流源计算评估方法。指出弓网表面温升主要由摩擦、接触电阻和电弧的作用而产生;分析和计算3种温升的热侵蚀过程和影响因素,并选取京津城际客运铁路基础参数进行仿真。仿真结果表明,摩擦热、焦耳热和电弧热一般同时存在并相互影响。分析得出弓网接触压力、风速影响、行车速度、电流变化等对接触线和滑板表面热流的影响规律。%Aiming at the thermal erosion problems caused by high temperatures,detailed pantograph-catenary surface heat flow calculation and evaluation were referred to and a computational model of pantograph and con-tact line was established.It was pointed out that the pantograph-catenary surface heat sources involved temper-atures generated under the action of friction,contact resistances and arcing.The thermal erosion processes and influencing factors of the three types of temperature rise were analyzed and calculated.Simulation was made on the basis of selection of fundamental parameters of the Beij ing-Tianj in Intercity Railway.The simulation re-sults show that the friction heat,Joule heat and arc heat generally exist simultaneously and influence one an-other.The law of pantograph-catenary contact pressures,wind speeds,running speeds and current changes af-fecting contact wire and slide surface heat fluxes was found.

  6. 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.

  7. 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.

  8. 速度梯度对立管涡激振动疲劳损伤影响分析%Analysis of VIV Fatigue Damage of Steel Catenary Riser under Different Velocity Gradient

    Institute of Scientific and Technical Information of China (English)

    王加夏; 周力; 高云

    2012-01-01

    将钢悬链式立管SCR(Steel Catenary Riser)简化为索模型,首先对立管进行了模态分析,并通过模态叠加法计算了涡激振动响应.然后基于瑞利分布,对立管进行了疲劳损伤分析,得到了立管的年疲劳损伤率.以1500 m水深Spar平台相连接的钢悬链式立管为例,通过改变剪切流的来流梯度来研究其对疲劳损伤产生的影响.计算结果表明·立管最大疲劳损伤通常出现在边界区域,并且随着来流速度梯度的减小,立管的能量激励区域增大,疲劳损伤也随之变大.%The SCR (Steel Catenary Riser) is simplified into a cable model in this paper. First the modal analysis is performed, then the response of vortex induced vibration(VIV) is calculated by modal superposition method. Based on Rayleigh distribution,the fatigue damage analysis induced by VIV is carried out to calculate the yearly fatigue damage rate of the riser. A 1 500 m Spar platform-riser system is studied, the paper is conducted through changing the gradient of the sheared flow to study its influence on the fatigue damage. The result show that the max fatigue damage occurs on the riser's boundary area, and with the reduction of the flow gradient the increase of the excited area of the riser, the fatigue damage is subsequently greatens.

  9. Renovation Construction Technology of the Eight-span Overlapping Electrical Sectioning Device of the Existing Railway Catenary System%既有线接触网八跨锚段关节电分相改造研究

    Institute of Scientific and Technical Information of China (English)

    李明辉

    2016-01-01

    随着我国电气化铁路的发展,越来越多的铁路规划、行车速度等不断出现新要求,既有线接触网电分相改造尤为重要,改造后的电分相必须确保没有安全隐患,确保列车的正常运行。本文重点介绍了接触网八跨关节式电分相改造特点,并对既有线接触网八跨锚段关节电分相改造施工工艺进行浅析,对今后的施工有一定的借鉴作用及参考价值。%With the development of electrified railway in our country,more and more railway planning,driving speed ap-pear new demands constantly,such as electrical sectioning device of the existing railway catenary system is particularly im-portant,the transformed electrical sectioning device must be ensured that there is no hidden danger and train can work as u-sual.This paper mainly introduces the transformation characteristics of the eight-span overlapping electrical sectioning de-vice,and analyzes the renovation construction technology of the eight-span overlapping electrical sectioning device of the ex-isting railway catenary system.It has some reference values for the construction in the future.

  10. Fire modeling for Building 221-T - T Plant Canyon Deck and Railroad Tunnel

    Energy Technology Data Exchange (ETDEWEB)

    Oar, D.L.

    1994-09-29

    This report was prepared by Hughes Associates, Inc. to document the results of fire models for building 221-T Canyon Deck and Railroad Tunnel. Backup data is contained in document No. WHC-SD-CP-ANAL-010, Rev. 0.

  11. 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...

  12. 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.

  13. 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...

  14. 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...

  15. 77 FR 73114 - BNSF Railway Company-Temporary Trackage Rights Exemption-Union Pacific Railroad Company

    Science.gov (United States)

    2012-12-07

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board BNSF Railway Company--Temporary Trackage Rights Exemption--Union Pacific Railroad Company AGENCY: Surface Transportation Board, DOT. ACTION: Notice, correction. SUMMARY:...

  16. 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...

  17. 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...

  18. 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...

  19. 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...

  20. 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...

  1. 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...

  2. 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...

  3. 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.

  4. 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...

  5. 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...

  6. 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...

  7. 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...

  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. 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. 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.

  11. 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.

  12. Empirical Analysis on the Structural Changes in Railroad Logistics in China (Japanese)

    OpenAIRE

    2015-01-01

    In China, with its vast land area, railroad transportation plays the most important role in forming an extensive basic logistics structure and logistics system. However, since 1949, railroad logistics has not been used freely as it has been managed under the centralized control of the Ministry of Railways, which is a semi-military organization in nature under a national strategy. Since shifting to reform and opening-up policies in 1978, economic resources have been mobilized as a result of th...

  13. [Health risk railroad noise - prognosis of potential health risks subsequent to night-time exposure to railroad noise in the German part of the Transversal Rotterdam Genova].

    Science.gov (United States)

    Greiser, E

    2014-12-01

    Based on risk coefficients for cardiovascular and psychiatric disease derived from a case-control study in the vicinity of a major German airport, statistics on persons exposed to night-time railroad noise in the vicinity of the Rotterdam-Genova Transversal, and on health expenditure calculations by the Federal Statistical Office of Germany a prognosis on effects of railroad noise was performed. It resulted for 1 10-year period in nearly 75 000 excess cases of diseases, nearly 30 000 excess deaths and health expenditures of 3.8 billion euros.

  14. 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.

  15. 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.

  16. 75 FR 26838 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System...

    Science.gov (United States)

    2010-05-12

    ... Pacific Railroad Company, Mr. William E. Van Trump, AVP Engineering -- Signal/Comm/TCO, 1400 Douglas..., near Chilcoot, California. The modification consists of the discontinuance and removal of...

  17. THE RAILROAD CAPACITY CRISIS: After Cutting to the Bone and More, Trains Are Back

    Directory of Open Access Journals (Sweden)

    Richard D. Stone

    2008-01-01

    Full Text Available During the Era of Railroad building (primarily the last half of the 19th century, it was far more profitable to lay track than to operate railroads due to the subsidiesfrom various levels ofgovernment and the competition between cities to be located on as many lines as possible, and the overcharging of the railroads by the construction companies. Railroads compensated for this glut by cross-subsidizing the unprofitable branch lines with revenues from the main lines. But as competition from other modes took hold, this was increasingly difficult to do. Therefore, by the early 20th century, railroads began to slowly shed some of the lightly trafficked lines. Regulatory changes in the 1980s made abandonment easier, and wholesale discarding of lines, including former mainlines, became common. But by the turn of the century,foreign imports put a greater demand on rail transportation, and lack of capacity caused many of the remaining lines to become very congested, in turn, causing extensive delays.

  18. 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.

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. Raising a highway and a railroad track during intensive mining operations

    Energy Technology Data Exchange (ETDEWEB)

    Kretschmer, W.

    1986-02-01

    In a mine subsidence area, a highway and a railroad track had to be raised by 7,50 m. In order to not exceed a maximum slope in both tracks, the raising operations were carried out in several steps, in accordance with the onset of ground subsidence. At the same time, the operations were not to interfere with the traffic on the four-track autobahn and the two-track railroad line. Simultaneously with the raising operations, the autobahn was enlarged from 4 tracks to 6 + 2 tracks. A local road was destroyed and replaced by a pedestrian and cyclist lane.

  4. 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.

  5. Railroad Anti-Monopoly Act of 1985, S. 447 and H. R. 1140

    Energy Technology Data Exchange (ETDEWEB)

    McKeever, I.E.

    1985-01-01

    This paper reviews the points and proposals for the Railroad Anti-Monopoly Act of 1985. S. 447 and H.R. 1140, and the impacts it will have on the railroads, consumers, and producers. It discusses the advantages of competition over monopolizing and the protection of captive shippers. Other relevant aspects of this bill include the positive influence on abandonments, provision of adequate compensation for use of tracks, the nationalization of differential pricing and the current status of the effort. Emphasis is on the transport of coal.

  6. 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

    ... Surface Transportation Board ABC & D Recycling, Inc.--Lease and Operation Exemption--a Line of Railroad in... under 49 CFR 1150.31 to lease from O'Riley Family Trust (O'Riley), and to operate 773 feet of rail line... lease and operate the railroad trackage owned by O'Riley. ABC & D states that it has and intends...

  7. Historische Technikakzeptanz – als kontextualisierende Technikzukunftsforschung am Fallbeispiel der T1-Duplexklasse der Pennsylvania Railroad, 1942–1951

    Directory of Open Access Journals (Sweden)

    Kunze, Rolf-Ulrich

    2015-01-01

    Full Text Available The essay presents the brief history of the last technological development of the steam age on US railroad tracks: the T1 duplex class of the Pennsylvania Railroad, 1942–1951. Referring to the methods of today’s technological assessment, the article is questioning a teleological interpretation of the last US passenger tratin steam locomotive as a failing innovation.

  8. 75 FR 41276 - US Rail Partners, Ltd. and Blackwell Northern Gateway Railroad Company-Continuance in Control...

    Science.gov (United States)

    2010-07-15

    ... modified certificate of public convenience and necessity in STB Finance Docket No. 35383, Eastern Berks Gateway Railroad Company-- ] Modified Rail Certificate, wherein EBGR seeks to lease and operate... Railroad Company (EWGR). BNGR operates approximately 35 miles of rail line between Wellington, Kan.,...

  9. 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...

  10. 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\\...

  11. 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...

  12. 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...

  13. 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...

  14. 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...

  15. 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...

  16. 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...

  17. 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...

  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. 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...

  20. 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...

  1. 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...

  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. 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...

  4. 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...

  5. 77 FR 2128 - Southwest Pennsylvania Railroad Company-Acquisition Exemption-Laurel Hill Development Corporation

    Science.gov (United States)

    2012-01-13

    ... between specified points in Fayette and Westmoreland Counties, Pa. under the agency's offer of financial assistance procedures. In Southwest Pennsylvania Railroad Company--Lease and Operation Exemption--Lines of..., 1995), SPRC was authorized to lease and operate that rail line. SPRC states that on August 25,...

  6. 78 FR 54849 - Hazardous Materials: Rail Petitions and Recommendations To Improve the Safety of Railroad Tank...

    Science.gov (United States)

    2013-09-06

    ... existing general service tank cars authorized for transportation of denatured fuel ethanol and crude oil in... standard for tank cars used to transport crude oil, denatured alcohol and ethanol/gasoline mixtures as well... Railroad Tank Car Transportation (RRR) AGENCY: Pipeline and Hazardous Materials Safety...

  7. 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…

  8. 26 CFR 1.45G-1 - Railroad track maintenance credit.

    Science.gov (United States)

    2010-04-01

    ... tangible asset or as an intangible asset. See, for example, § 1.263(a)-4(d)(8), which requires... taxpayer. The basis of the tangible asset or intangible asset includes the capitalized amount of the QRTME... to be capitalized into the qualifying railroad structure or an intangible asset. The adjusted...

  9. 76 FR 67774 - Actuarial Advisory Committee With Respect to the Railroad Retirement Account; Notice of Public...

    Science.gov (United States)

    2011-11-02

    ... hold a meeting on November 14, 2011, at 9:30 a.m. at the office of the Chief Actuary of the U.S... experience on which the recommendations are based will have been sent by the Chief Actuary to the Committee... Advisory Committee, cio Chief Actuary, U.S. Railroad Retirement Board, 844 North Rush Street,...

  10. 75 FR 47650 - Actuarial Advisory Committee With Respect to the Railroad Retirement Account; Notice of Public...

    Science.gov (United States)

    2010-08-06

    ... hold a meeting on September 23, 2010, at 9:30 a.m. at the office of the Chief Actuary of the U.S... experience on which the recommendations are based will have been sent by the Chief Actuary to the Committee... Advisory Committee, c/o Chief Actuary, U.S. Railroad Retirement Board, 844 North Rush Street,...

  11. 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 Railway Company AGENCY: Surface Transportation Board, DOT. ACTION: Partial revocation of exemption... Railway Company (BNSF) to extend to December 18, 2010, the expiration date of the local trackage...

  12. 78 FR 48224 - Lac-Mégantic Railroad Accident Discussion and DOT Safety Recommendations

    Science.gov (United States)

    2013-08-07

    .... 13-13] Lac-M[eacute]gantic Railroad Accident Discussion and DOT Safety Recommendations AGENCY... their destinations safely and without incident. In calendar year 2011, for example, out of the... might also travel. Human Factors Finally, Transport Canada's emergency directive and order...

  13. 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

  14. 76 FR 74585 - Railroad Workplace Safety; Adjacent-Track On-Track Safety for Roadway Workers

    Science.gov (United States)

    2011-11-30

    ... the larger rulemaking that would need to undergo internal review and approval and public notice and... to visualize the factual scenarios. Given the importance of an on-track safety job briefing in..., maintenance or repair of railroad track, bridges, roadway, signal and communication systems, electric...

  15. 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…

  16. 49 CFR 220.43 - Radio communications consistent with federal regulations and railroad operating rules.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Radio communications consistent with federal... Radio and Wireless Communication Procedures § 220.43 Radio communications consistent with federal regulations and railroad operating rules. Radio communication shall not be used in connection with a...

  17. 75 FR 22436 - Michael Williams-Control Exemption-St. Maries River Railroad, Inc.

    Science.gov (United States)

    2010-04-28

    ... Surface Transportation Board Michael Williams-Control Exemption-St. Maries River Railroad, Inc. Michael Williams (applicant),\\1\\ a noncarrier, has filed a verified notice of exemption to acquire control of St... from STMA's parent, Potlatch Land & Lumber, LLC, by Williams Group, Inc. (WG).\\2\\ Applicant...

  18. 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…

  19. 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....

  20. 77 FR 27856 - Tennessee Southern Railroad Company, Patriot Rail, LLC, Patriot Rail Holdings LLC, and Patriot...

    Science.gov (United States)

    2012-05-11

    ... Tennessee Southern Railroad Company (TSRR), Patriot Rail, LLC (PRL), and its subsidiaries Patriot Rail... days after the notice of exemption was filed). TSRR is a rail carrier. PRL, PRH, and Patriot are... TSRR, PRL, PRH, and Patriot; (2) the continuance in control of KTRR is not intended to connect with...

  1. 75 FR 70076 - Tennessee Southern Railroad Company, Patriot Rail, LLC, Patriot Rail Holdings LLC, and Patriot...

    Science.gov (United States)

    2010-11-16

    ... Company (TSRR), Patriot Rail, LLC (PRL), and its subsidiaries Patriot Rail Holdings LLC (PRH), and Patriot... after December 21, 2010. PRL and its subsidiaries, including CLC, DQE, GTRA, MSV, PAW, and TOE, entered... subsidiary of PRL, PRH, and Patriot and does not control any other railroad subsidiaries. PRL is a...

  2. 20 CFR 220.13 - Establishment of permanent disability for work in regular railroad occupation.

    Science.gov (United States)

    2010-04-01

    ... and mental demands of the employee's regular railroad occupation. In determining the job demands of... determine the employee's residual functional capacity. The Board will then compare the job demands of the... of his or her job; (2) Evaluate whether the claimant is disabled as follows: (i) The Board...

  3. 75 FR 7303 - Union Pacific Railroad Company-Abandonment Exemption-in Polk County, IA

    Science.gov (United States)

    2010-02-18

    ...--Exempt Abandonments to abandon .20 miles of a line of railroad on the Ankeny Industrial Lead from milepost 10.50 in Ankeny to milepost 10.70 in Ankeny, in Polk County, IA. The line traverses United States Postal Service Zip Code 50021. UP has certified that: (1) No local traffic has moved over the line for...

  4. 77 FR 25229 - Dallas, Garland & Northeastern Railroad Company-Discontinuance of Trackage Rights Exemption-in...

    Science.gov (United States)

    2012-04-27

    ..., in Dallas County, Tex. (the Line).\\1\\ The Line traverses United States Postal Service Zip Codes 75210, 75227, and 75217. \\1\\ The Line is owned by Dallas Area Rapid Transit (DART). DGNO acquired by assignment... Service to discontinue trackage rights over an approximately 6.04-mile line of railroad known as the...

  5. 75 FR 7302 - Union Pacific Railroad Company-Abandonment Exemption-in Polk County, IA

    Science.gov (United States)

    2010-02-18

    ... Polk County, IA. The line traverses United States Postal Service Zip Codes 50317, 50032, 50021, 50009, and 50035. UP has certified that: (1) No local traffic has moved over the line for at least 2 years...--Exempt Abandonments to abandon a portion of its line of railroad known as the Bondurant Industrial...

  6. 78 FR 20714 - Union Pacific Railroad Company-Abandonment Exemption-in Dunn County, WI.

    Science.gov (United States)

    2013-04-05

    ... F-Exempt Abandonments to abandon a 0.58-mile line of railroad on its Menomonie Industrial Lead from milepost 0.32 near Cedar Falls Road to the end of the line at milepost 0.90 near Oak Avenue, in Menomonie, Dunn County, Wis. (the Line). The Line traverses United States Postal Service Zip Code 54751. UP...

  7. 78 FR 77791 - Dakota, Minnesota & Eastern Railroad Corporation-Abandonment Exemption-in Scott County, Iowa

    Science.gov (United States)

    2013-12-24

    ... 0.66-mile line of railroad referred to as Blackhawk Spur, between milepost 0.33+/- and milepost 0.99 +/- in Scott County, Iowa (the Line). The Line traverses United States Postal Service Zip Code 52802. DM&E has certified that: (1) No local traffic has moved over the Line for at least two years; (2)...

  8. 75 FR 35514 - Union Pacific Railroad Company-Abandonment Exemption-in Yakima County, WA

    Science.gov (United States)

    2010-06-22

    ... Abandonments to abandon a 0.8-mile line of railroad, on the Yakima Industrial Lead, from milepost 62.75 to milepost 63.55 near Midvale, in Yakima County, Wash.\\1\\ The line traverses United States Postal Service Zip... over the line for at least 2 years; (2) there is no overhead traffic on the line; (3) no...

  9. 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),...

  10. 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...

  11. 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...

  12. 78 FR 69141 - 2014 Railroad Experience Rating Proclamations, Monthly Compensation Base and Other Determinations

    Science.gov (United States)

    2013-11-18

    ... 2014 Railroad Experience Rating Proclamations, Monthly Compensation Base and Other Determinations... experience-based employer contribution rates for the following year. The RRB is further required by section 8... under the Act cannot be considered subsidiary remuneration if the employee's base year compensation...

  13. 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...

  14. 76 FR 50359 - Hours of Service of Railroad Employees; Substantive Regulations for Train Employees Providing...

    Science.gov (United States)

    2011-08-12

    ... From the Federal Register Online via the Government Publishing Office ] Vol. 76 Friday, No. 156 August 12, 2011 Part III Department of Transportation Federal Railroad Administration 49 CFR Part 228...; Final Rule #0;#0;Federal Register / Vol. 76 , No. 156 / Friday, August 12, 2011 / Rules and...

  15. 76 FR 16199 - Hours of Service of Railroad Employees; Substantive Regulations for Train Employees Providing...

    Science.gov (United States)

    2011-03-22

    ... From the Federal Register Online via the Government Publishing Office ] Vol. 76 Tuesday, No. 55 March 22, 2011 Part IV Department of Transportation Federal Railroad Administration 49 CFR Part 228...; Proposed Rule #0;#0;Federal Register / Vol. 76 , No. 55 / Tuesday, March 22, 2011 / Proposed...

  16. 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...

  17. 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...

  18. 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.

  19. 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。

  20. Lightning Scope Division and Lightning Trip-out Rate Calculation Method for Overhead Catenary System%接触网引雷范围划分及跳闸率的计算方法

    Institute of Scientific and Technical Information of China (English)

    曹晓斌; 熊万亮; 吴广宁; 李瑞芳; 周利军

    2013-01-01

    为了对接触网的雷击可靠性进行评估,根据接触网雷击过电压的产生途径,将其分为3种主要的雷击类型,提出了接触网雷击类型与雷电先导的位置有关.结合电气几何模型的基本原理,建立了单线区段和复线区段接触网的电气几何模型,给出了回流线、承力索的暴露弧范围,并推导了各暴露孤的交点坐标方程组,利用该方程组可以求得不同雷击类型的引雷范围.结合电力行业标准DL/T 620-1997中推荐的雷电流幅值分布概率与建弧率公式,分别给出了3种不同雷击类型的跳闸率计算公式以及总跳闸率的评估方法;并利用该方法计算了电气化铁路的雷击跳闸率,发现直供方式下复线区段的雷击跳闸率低于单线区段,提出了回流线对承力索的屏蔽作用是造成该现象的主要原因.%In order to evaluate the reliability of traction power supply system struck by lightning,we divided lightning strokes into three types according to the way of lightning over-voltage production,and proposed that the lightning stroke type was decided by the position of lightning leader.Combined with the basic principle of the electrical geometry model(EGM),EGMs of single-line section and double-line section of railway were established.Then the exposure arc range of return line and catenary wire were given,and coordinates equations of each exposure arc's intersection were derived.By using these equations,work ranges of different lightning types were obtained.Furthermore,taking the recommended calculation formula of lightning current amplitude distribution and construction of arc rate in DL/T 620-1997 into consideration,we proposed formulas of trip rate for the three lightning stroke types and an assessment method of total trip rate.After calculating the trip out rate of an electrified railway by the method,we found a phenomenon that the lightning trip rate of double-line section was lower than that of single

  1. Status Monitoring Interface Design of Catenary Operation Vehicle Based on MT508TV5%基于MT508 TV5的接触网作业车状态监测界面设计

    Institute of Scientific and Technical Information of China (English)

    王静; 张宝霞; 柳彦虎

    2014-01-01

    叙述了对接触网作业车状态监测的必要性,同时对MT508 TV5触摸屏作了简要的说明。给出了利用EB500组态软件设计的监测界面及程序下载到触摸屏的方法,主要介绍通过EB500组态软件设置触摸屏与PLC通讯方式和参数的方法,并给出MT508TV5触摸屏与CP1H型PLC通过RS232连接的方法。最后对该监测界面运行调试结果及设计过程中遇到的问题作了简要的说明。%The necessity of catenary operation vehicle status monitoring is described .A brief description of the MT508 TV5 touch screen is given.The monitoring interface by use the EB500 configuration software interface design and the method of program downed to the screen are proposed .The method of the communication mode and parameters between the screen and PLC is mainly described, and the method of MT508TV5 communicate with the PLC of CP1H through RS232 is given.Finally, A brief description for monitoring interface debugging results and problems encountered in the design process are introduced .

  2. 大风沙地区铝合金接触网零部件表面处理的优选%Optimization of Surface Treatment of Alumunium Alloy Catenary Parts in Sandstorm Area

    Institute of Scientific and Technical Information of China (English)

    冯晓河

    2016-01-01

    ABSTRACT:Objective To improve the abrasion resistance of part surface of aluminum alloy catenary, in order to enhance its service life in wind drift sand regions. Methods The incised parts of aluminum alloy catenary were adopted to prepare samples. Mi-cro-arc oxidation coatings on the surface of samples were formed in silicate-based electrolyte under 20 kW DC pulse for 30 minutes. At the same time, anodic oxidation samples were generated for a contrastive analysis. The surface hardness and abrasion resistance of the coatings were evaluated through hardness test, abrasive wear experiment and SEM test, and neutral salt spray test was used to evaluate their corrosion resistance. The difference of the two coatings was observed by SEM. Results The abrasion resistance of part surface of aluminum alloy catenary was obvisously improved by both anodic oxidation and micro-arc oxidation. The anodic oxi-dation film was 350. 3HV in hardness, while the hardness of MAO film was 1510. 8HV, four times higher than that of the anodic oxidation film. After a 30 minutes′test in HT-600 high temperature wear and abrasion test machine, the MAO lost its weight by on-ly 0. 15 mg, comparing to 0. 8 mg of anodic oxidation film and 2 mg of aluminum alloy substrate. Besides, the MAO films showed a better corrosion resistance. Conclusion In the comparative test between micro arc oxidation and anodic aluminum oxidation coa-tings, the micro-arc oxidation coatings showed better abrasion resistance and corrosion resistance. Therefore, micro arc oxidation was more suitable for treatment of aluminum alloy parts in the windy and dusty area.%目的:提高铝合金接触网零部件表面耐磨损性能,以增加其在大风沙地区的使用寿命。方法对接触网零件切割进行试样制备。在硅酸盐体系电解液中,采用20 kW直流脉冲微弧氧化设备对试样表面进行微弧氧化处理,电解液为硅酸盐,氧化时间为30 min。同时制备阳极氧化处理的平行试

  3. 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...

  4. Railroad Lines, Published in 2003, 1:7200 (1in=600ft) scale, North Georgia Regional Development Center.

    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 Hardcopy Maps information as of 2003. Data by this publisher are...

  5. Railroad Lines, Rail Corridors, Published in 2014, 1:2400 (1in=200ft) scale, Madison Area Transportation Planning Board.

    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 2014. It is described as 'Rail...

  6. 75 FR 41277 - Central of Georgia Railroad Company-Discontinuance of Service Exemption-Newton County, GA; Great...

    Science.gov (United States)

    2010-07-15

    ... discontinue operating rights under a lease, over a 14.90-mile line of railroad between milepost E 65.80 at... expression of intent to file an offer of financial assistance (OFA) has been received, these exemptions...

  7. 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...

  8. 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...

  9. 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...

  10. 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...

  11. 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

    ... previous conference. Thus, in terms of the negotiating time of both sides, economies of scale are achieved... intended to reach as far as the Commerce Clause of the Constitution (i.e., to all railroads that...

  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

    ... Environmental Impact Statement (EIS) The Surface Transportation Board's Office of Environmental Analysis (OEA... Surface Transportation Board Tongue River Railroad Company, Inc.--Rail Construction and Operation--in....gov . By the Board. Victoria Rutson, Director, Office of Environmental Analysis. Jeffrey...

  13. 77 FR 66663 - Tongue River Railroad Company, Inc.-Rail Construction and Operation-in Custer, Powder River and...

    Science.gov (United States)

    2012-11-06

    ... Environmental Impact Statement (EIS) The Surface Transportation Board's Office of Environmental Analysis (OEA... Surface Transportation Board Tongue River Railroad Company, Inc.--Rail Construction and Operation--in..., Victoria Rutson, Director, Office of Environmental Analysis. Jeffrey Herzig, Clearance Clerk. BILLING...

  14. 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...

  15. 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...

  16. 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...

  17. 62 FR 28104 - Union Pacific Railroad CompanyAbandonment Exemptionin Malheur County, OR and Owyhee County, ID...

    Science.gov (United States)

    1997-05-22

    ... and Owyhee County, ID (Homedale Branch) On May 2, 1997, Union Pacific Railroad Company (UP) filed with..., and Owyhee County, ID, and includes the non-agency stations of Napton, OR-- milepost 16.90;...

  18. 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...

  19. 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.

  20. 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.

  1. 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.

  2. 深水钢悬链线式输油立管波致疲劳损伤频域分析%Spectral analysis on wave induced fatigue of deepwater steel catenary riser

    Institute of Scientific and Technical Information of China (English)

    周巍伟; 曹静; 沙勇; 陈严飞

    2011-01-01

    Wave induced fatigue damage is one of the most significant factors to be considered in the design of deepwater steel catenary risers (SCR). The spectrum analysis method is adopted to analyze SCR' s fatigue damage. Take a typical deep-water SCR as an example to calculate its fatigue damage induced most frequently by northeast waves and analyze the fatigue sensibility to the parameters of riser wall thickness, in-riser fluid density and seabed stiffness. The results have proven that the fatigue damage is serious at flex joint and touchdown point; the fatigue damage of SCR will be more serious as wall thickness decreased in the area above touchdown point, however the tendency will be inverse in the touchdown area; in riser curvature area and near the touchdown point area, the lighter in-riser fluid density will cause more serious fatigue damage; the seabed stiffness effects the fatigue in the touchdown area only, and the larger seabed stiffness results in more serious fatigue damage.%波致疲劳损伤是深水钢悬链线式输油立管(SCR)设计主要考虑的因素之一.采用频域谱分析方法进行立管波致疲劳损伤分析.对某海域发生概率最大的东北方向波浪引起的SCR疲劳损伤进行了分析,并对立管壁厚、内部流体和海底刚度等参数进行了疲劳敏感性分析,结果表明:在立管柔性接头处和触地点处的疲劳损伤较大;在触地点以上区域立管壁厚越小其疲劳损伤越严重,而在触地区域立管壁厚越小其疲劳损伤越小;内部流体越轻,在立管曲率较大和触地点附近区域其疲劳损伤越大;海底刚度仅影响触地区域立管的疲劳损伤,海底刚度越大,触地区域立管的疲劳损伤越大.

  3. Finite Element Modeling of the Bulk Magnitization of Railroad Wheels to Improve Test Conditions for Magnetoacoustic Residual Stress Measurements

    Science.gov (United States)

    Fulton, J. P.; Wincheski, B.; Namkung, M.; Utrata, D.

    1992-01-01

    The magnetoacoustic measurement technique has been used successfully for residual stress measurements in laboratory samples. However, when used to field test samples with complex geometries, such as railroad wheels, the sensitivity of the method declines dramatically. It has been suggested that the decrease in performance may be due, in part, to an insufficient or nonuniform magnetic induction in the test sample. The purpose of this paper is to optimize the test conditions by using finite element modeling to predict the distribution of the induced bulk magnetization of railroad wheels. The results suggest that it is possible to obtain a sufficiently large and uniform bulk magnetization by altering the shape of the electromagnet used in the tests. Consequently, problems associated with bulk magnetization can be overcome, and should not prohibit the magnetoacoustic technique from being used to make residual stress measurements in railroad wheels. We begin by giving a brief overview of the magnetoacoustic technique as it applies to residual stress measurements of railroad wheels. We then define the finite element model used to predict the behavior of the current test configuration along with the nonlinear constitutive relations which we obtained experimentally through measurements on materials typically used to construct both railroad wheels and electromagnets. Finally, we show that by modifying the pole of the electromagnet it is possible to obtain a significantly more uniform bulk magnetization in the region of interest.

  4. 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.

  5. Prospects of China's High-speed Railroad considering the Debate on "Maglev" and "On-the-Trail" Contributions

    Directory of Open Access Journals (Sweden)

    Run Sha

    2012-10-01

    Full Text Available Considering the fierce debate on whether "maglev" or"on-the-trail" system should be applied to China's first high-speed railroad, this paper makes prospects about China's high--speed railroads. As at the initial stage, careful considerationsshould be given to the framework of China's high-speed railroads.Combining China's specific national conditions, the paperdemonstrates that maglev train can be well applied in theeast and the regions of the middle and lower reaches of theYangtze River where there is developed economy, lwge anddense population, limited land use, concentrated big cities andrail transport shortage. The maglev system is the world's mostadvanced technology, China should take the best to catch upwith the world in this transportation field.

  6. 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.

  7. 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...

  8. 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)

  9. 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.

  10. The Potentials of Rail-Road Integration for Port-Hinterland Freight Transport in Nigeria

    Directory of Open Access Journals (Sweden)

    Andrew Egba Ubogu

    2011-06-01

    Full Text Available Modern transport and freight distribution system all over the world are tending towards the adoption of best practices that are reliable, timely and cost-effective. This study evaluates the potentials of integrating rail-road system for port-hinterland freight in Nigeria. Much of the primary data was obtained through the administration of a questionnaire specifically designed to gather information on the cost involved, distanced covered, areal coverage, and time taken to deliver cargoes to consignees. The respondents that were sampled systematically for this study were truck drivers who were interviewed at the point of loading in Lagos and Port Harcourt port complexes. In all, 302 truck drivers were interviewed. Secondary data sources were from records of Nigerian Ports Plc and Nigerian Railway Corporation. The data was analyzed using frequency distribution, Student’s t-test, and Geometric Mean analysis. The findings of this paper reveal that integrating rail-road for hinterland bound goods would be timely and potentially save 44.2% and 93.7% freight costs on the western and eastern flank respectively from the seaports of Lagos and Port Harcourt. Furthermore, the paired differences of the costs and time on both flanks were statistically significant using the Student’s t-test statistics. The implications of these findings are that integrating the various modes of transport for port-hinterland freight distribution would make the nation’s transportation system to be faster and more cost-effective.

  11. Active-site properties of Phrixotrix railroad worm green and red bioluminescence-eliciting luciferases.

    Science.gov (United States)

    Viviani, V R; Arnoldi, F G C; Venkatesh, B; Neto, A J S; Ogawa, F G T; Oehlmeyer, A T L; Ohmiya, Y

    2006-10-01

    The luciferases of the railroad worm Phrixotrix (Coleoptera: Phengodidae) are the only beetle luciferases that naturally produce true red bioluminescence. Previously, we cloned the green- (PxGR) and red-emitting (PxRE) luciferases of railroad worms Phrixotrix viviani and P. hirtus[OLE1]. These luciferases were expressed and purified, and their active-site properties were determined. The red-emitting PxRE luciferase displays flash-like kinetics, whereas PxGR luciferase displays slow-type kinetics. The substrate affinities and catalytic efficiency of PxRE luciferase are also higher than those of PxGR luciferase. Fluorescence studies with 8-anilino-1-naphthalene sulfonic acid and 6-p-toluidino-2-naphthalene sulfonic acid showed that the PxRE luciferase luciferin-binding site is more polar than that of PxGR luciferase, and it is sensitive to guanidine. Mutagenesis and modelling studies suggest that several invariant residues in the putative luciferin-binding site of PxRE luciferase cannot interact with excited oxyluciferin. These results suggest that one portion of the luciferin-binding site of the red-emitting luciferase is tighter than that of PxGR luciferase, whereas the other portion could be more open and polar.

  12. 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

  13. 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.

  14. 78 FR 12824 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System...

    Science.gov (United States)

    2013-02-25

    ... 32nd Street crossover at Milepost 333.28 in the existing traffic control system at Port Huron, MI, on the Midwest Division, Flint Subdivision. The request was based on the fact that the design of the 32nd Street crossover is not uncommon in the railroad industry, and it provides all the requisite...

  15. 77 FR 26825 - Iowa River Railroad, Inc.-Abandonment Exemption-in Marshall and Hardin Counties, IA

    Science.gov (United States)

    2012-05-07

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Iowa River Railroad, Inc.--Abandonment Exemption--in Marshall and Hardin....35 at or near Marshalltown, in Marshall and Hardin Counties, Iowa (the Line). The Line...

  16. 75 FR 7537 - Elkhart & Western Railroad Co.-Lease and Operation Exemption-Norfolk Southern Railway Company

    Science.gov (United States)

    2010-02-19

    ... verified notice of exemption under 49 CFR 1150.41 to lease and to operate, pursuant to a lease agreement... Surface Transportation Board Elkhart & Western Railroad Co.--Lease and Operation Exemption-- Norfolk... Transaction Exemption, STB Finance Docket No. 33941 (STB served Oct. 10, 2000). \\2\\ EWR states that it...

  17. 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...

  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. 78 FR 54955 - Mississippi Central Railroad Co.-Lease and Change in Operators Exemption-Line of Mississippi...

    Science.gov (United States)

    2013-09-06

    ...), owned by the Mississippi-Alabama Railroad Authority (MARA). MSCI also proposes to acquire approximately... MARA, the owner of the Line, to permit MSCI to acquire RRC's leasehold interest in the Line, and for..., pursuant to its agreements with RRC and MARA, MSCI will lease, operate, maintain, and perform all...

  20. 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...

  1. 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...

  2. 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...

  3. 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.

  4. 76 FR 71125 - Caddo Valley Railroad Company-Abandonment Exemption-in Clark, Pike, and Montgomery Counties, AR

    Science.gov (United States)

    2011-11-16

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Caddo Valley Railroad Company--Abandonment Exemption--in Clark, Pike, and... distance of 32.2 miles, in Clark, Pike, and Montgomery Counties, Ark. (the line).\\1\\ The line...

  5. 76 FR 71124 - Caddo Valley Railroad Company-Abandonment Exemption-in Pike and Clark Counties, AR

    Science.gov (United States)

    2011-11-16

    ... Surface Transportation Board Caddo Valley Railroad Company--Abandonment Exemption--in Pike and Clark... milepost 447, near Antoine, a distance of 17.55 miles, in Pike and Clark Counties, Ark. (the line).\\1\\ The... Summit (milepost 433.1), Okolona (milepost 441.0), and Pike City Junction (milepost 446.5). \\1\\...

  6. 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…

  7. 77 FR 1975 - Union Pacific Railroad Company-Discontinuance of Service Exemption-in Pittsburg, Hughes, and...

    Science.gov (United States)

    2012-01-12

    ..., Hughes, and Seminole Counties, Okla. (the line). The line traverses United States Postal Service Zip... discontinue service over a portion of a line of railroad known as the Shawnee Branch Line, between milepost... in Hughes County, which makes the line 0.19 miles longer than the terminal mileposts would...

  8. 75 FR 60496 - Kern Valley Railroad Company-Termination of Trackage Rights-in Las Animas County, CO

    Science.gov (United States)

    2010-09-30

    ... milepost 0.0 and milepost 2.0 in Jansen, Las Animas County, Colo. (the line). The line traverses United States Postal Service Zip Code 81082 and includes no stations. The line, to KVR's knowledge, does not... set forth in Oregon Short Line Railroad--Abandonment Portion Goshen Branch Between Firth & Ammon,...

  9. 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)...

  10. 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.,...

  11. 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...

  12. 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...

  13. 76 FR 39978 - Virginia Port Authority-Acquisition Exemption-Norfolk and Portsmouth Belt Line Railroad Company

    Science.gov (United States)

    2011-07-07

    ... Surface Transportation Board Virginia Port Authority--Acquisition Exemption--Norfolk and Portsmouth Belt... exemption under 49 CFR 1150.31 to acquire from the Norfolk and Portsmouth Belt Line Railroad Company (NPBL... provision that would limit interchange with a third party. VPA certifies that its projected annual...

  14. 49 CFR 800.25 - Delegation to the Directors of Office of Aviation Safety, Office of Railroad Safety, Office of...

    Science.gov (United States)

    2010-10-01

    ... Offices of Aviation, Railroad, Highway, Marine, and Pipeline and Hazardous Materials Safety, the authority... 49 Transportation 7 2010-10-01 2010-10-01 false Delegation to the Directors of Office of Aviation... Pipeline and Hazardous Materials Safety. 800.25 Section 800.25 Transportation Other Regulations Relating...

  15. 76 FR 21425 - Rocky Mountain Railcar and Repair, Inc.-Acquisition and Operation Exemption-Line of Railroad in...

    Science.gov (United States)

    2011-04-15

    ... 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... line. \\1\\ Rocky Mountain states that it currently operates a railcar repair facility, but that it...

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

    Science.gov (United States)

    2013-02-08

    ... Canadian National Railway Company, to acquire from CSX Transportation, Inc. (CSXT) an exclusive, perpetual...-Aulon Line. GTW's easement acquisition is one part of an Agreement for Exchange of Perpetual Easements..., GTW has agreed to grant CSXT an exclusive, perpetual, non-assignable railroad operating easement...

  17. Investigating risk factors of traffic casualties at private highway-railroad grade crossings in the United States.

    Science.gov (United States)

    Haleem, Kirolos

    2016-10-01

    Private highway-railroad grade crossings (HRGCs) are intersections of highways and railroads on roadways that are not maintained by a public authority. Since no public authority maintains private HRGCs, fatal and injury crashes at these locations are of concern. However, no study has been conducted at private HRGCs to identify the safety issues that might exist and how to alleviate them. This study identifies the significant predictors of traffic casualties (including both injuries and fatalities) at private HRGCs in the U.S. using six years of nationwide crashes from 2009 to 2014. Two levels of injury severity were considered, injury (including fatalities and injuries) and no injury. The study investigates multiple predictors, e.g., temporal crash characteristics, geometry, railroad, traffic, vehicle, and environment. The study applies both the mixed logit and binary logit models. The mixed logit model was found to outperform the binary logit model. The mixed logit model revealed that drivers who did not stop, railroad equipment that struck highway users, higher train speeds, non-presence of advance warning signs, concrete road surface type, and cloudy weather were associated with an increase in injuries and fatalities. For example, a one-mile-per-hour higher train speed increases the probability of fatality by 22%. On the contrary, male drivers, PM peak periods, and presence of warning devices at both approaches were associated with a fatality reduction. Potential strategies are recommended to alleviate injuries and fatalities at private HRGCs.

  18. 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.

  19. On Transport Service Selection in Intermodal Rail/Road Distribution Networks

    Directory of Open Access Journals (Sweden)

    Christian Bierwirth

    2012-11-01

    Full Text Available Intermodal rail/road freight transport constitutes an alternative to long-haul road transport for the distribution of large volumes of goods. The paper introduces the intermodal transportation problem for the tactical planning of mode and service selection. In rail mode, shippers either book train capacity on a per-unit basis or charter block trains completely. Road mode is used for short-distance haulage to intermodal terminals and for direct shipments to customers. We analyze the competition of road and intermodal transportation with regard to freight consolidation and service cost on a model basis. The approach is applied to a distribution system of an industrial company serving customers in eastern Europe. The case study investigates the impact of transport cost and consolidation on the optimal modal split.

  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. Railroad Lines, Rail lines from othoimagery including sidings and roundhouse, Published in 2013, 1:2400 (1in=200ft) scale, Portage 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 Orthoimagery information as of 2013. It is described as 'Rail...

  2. 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...

  3. 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...

  4. Analysis on the Features and Countermeasures for Reconstructing Catenary of Existing Railway Lines in a Large Railway Station Yard%铁路大型站场既有线接触网改造施工的特点与对策

    Institute of Scientific and Technical Information of China (English)

    沙海柱; 李鲁

    2011-01-01

    Introducing Beijing-Shanghai high-speed railway into Ji'nan railway south station is the project connecting two newly built electrified railway tie lines from Ji'nan west station of Beijing - Shanghai high-speed railway to Ji'nan railway south station of the existing Beijing-Shanghai railway. Ji'nan railway station is a super class passenger station with a history of more than one hundred years. Electrification of it was carried out only a few years ago, yet in the station there are many tracks and complex power supply and catenary structures. In this case, the construction process-increasing tracks, relaying and rewiring railway lines, then transforming catenary was very complicated. Considering the problems such as many companies to be coordinated, complex construction environment, short time of power cut-off and large traffic interference, the authority adopted many management measures and technical means to ensure that any traffic accident and personal injury accidents will never happen, which enhanced the smooth completion of the project.%京沪高速铁路引入济南站项目是新建2条电气化铁路联络线从京沪高速铁路济南西站引到既有京沪线济南站的工程,济南站是一个有百年以上历史的特等客站,虽然电气化改造没几年,但股道多、供电方式和接触网结构复杂,在这种情况下进行增加股道和线路拨接,进而改造接触网,施工过程非常复杂.针对配合单位多、施工环境复杂、停电时间短、运输干扰大等问题,从管理措施和技术手段上下功夫,采取有效措施,在保证不出一件行车事故和人身伤害事故的基础上,使京沪高速铁路引入济南站接触网过渡改造任务圆满完成.

  5. Between the Workshop and the State: Training Human Capital in Railroad Companies in Mexico and Chile, 1850-1930

    OpenAIRE

    2009-01-01

    This paper analyzes the human capital training strategies adopted between the 1850s and 1930s by railroad companies in Mexico and Chile. These two countries enable one to contrast the different routes taken by the same type of firm, technology and labor force. A propos of this, we suggest that because of its complexity, capital intensity and new work methods, railway technology had a positive impact on human capital training in the cases studied. During the period when railways were the main ...

  6. 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.

  7. 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.

  8. Weighing in motion and characterization of the railroad traffic with using the B-WIM technique

    Directory of Open Access Journals (Sweden)

    J. A. DE CARVALHO NETO

    Full Text Available AbstractThe knowledge on the active moving load of a bridge is crucial for the achievement of the information on the behavior of the structure, and thus foresee maintenance, repairs and better definition of the logistics of its active vehicles. This paper presents the development of the algorithms for the application of the Bridge-Weigh In Motion (B-WIM method created by Moses for the weighing of trains during motion and also for the characterization of the rail traffic, allowing the obtainment of information like passage's train velocity and number and spacing of axles, eliminating the dynamic effect. There were implemented algorithms for the determination of the data referring to the geometry of the train and its loads, which were evaluated using a theoretical example, in which it was simulated the passage of the train over a bridge and the loads of its axles were determined with one hundred percent of precision. In addition, it was made a numerical example in finite elements of a reinforced concrete viaduct from the Carajás' Railroad, in which the developed system reached great results on the characterization and weighing of the locomotive when the constitutive equation of the Brazilian Standards was substituted by the one proposed by Collins and Mitchell.

  9. 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.

  10. 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.

  11. Enhanced red-emitting railroad worm luciferase for bioassays and bioimaging.

    Science.gov (United States)

    Li, Xueyan; Nakajima, Yoshihiro; Niwa, Kazuki; Viviani, Vadim R; Ohmiya, Yoshihiro

    2010-01-01

    A luciferase from the railroad worm (Phrixothrix hirtus) is the only red-emitting bioluminescent enzyme in nature that is advantageous in multicolor luciferase assays and in bioluminescence imaging (BLI). However, it is not used widely in scientific or industrial applications because of its low activity and stability. By using site-directed mutagenesis, we produced red-emitting mutants with higher activity and better stability. Compared with the wild-type (WT), the luminescent activities from extracts of cultured mammalian cells expressing mutant luciferase were 9.8-fold in I212L/N351K, 8.4-fold in I212L, and 7.8-fold in I212L/S463R; and the cell-based activities were 3.6-fold in I212L/N351K and 3.4-fold in N351K. The remaining activities after incubation at 37 degrees C for 10 min were 50.0% for I212L/S463R, 31.8% for I212L, and 23.0% for I212L/N351K, but only 5.2% for WT. To demonstrate an application of I212L/N351K, cell-based BLI was performed, and the luminescence signal was 3.6-fold higher than in WT. These results indicate that the mutants might improve the practicability of this signaling in bioassays and BLI.

  12. 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。

  13. 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.

  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. 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...

  16. Heat flow in Railroad Valley, Nevada and implications for geothermal resources in the south-central Great Basin

    Science.gov (United States)

    Williams, C.F.; Sass, J.H.

    2006-01-01

    The Great Basin is a province of high average heat flow (approximately 90 mW m-2), with higher values characteristic of some areas and relatively low heat flow (Low. There is hydrologie and thermal evidence that the Eureka Low results from a relatively shallow, hydrologically controlled heat sink associated with interbasin water flow in the Paleozoic carbonate aquifers. Evaluating this hypothesis and investigating the thermal state of the Eureka Low at depth is a high priority for the US Geological Survey as it prepares a new national geothermal resource assessment. Part of this investigation is focused on Railroad Valley, the site of the largest petroleum reservoirs in Nevada and one of the few locations within the Eureka Low with a known geothermal system. Temperature and thermal conductivity data have been acquired from wells in Railroad Valley in order to determine heat flow in the basin. The results reveal a complex interaction of cooling due to shallow ground-water flow, relatively low (49 to 76 mW m-2) conductive heat flow at depth in most of the basin, and high (up to 234 mW m-2) heat flow associated with the 125??C geothermal system that encompasses the Bacon Flat and Grant Canyon oil fields. The presence of the Railroad Valley geothermal resource within the Eureka Low may be reflect the absence of deep ground-water flow sweeping heat out of the basin. If true, this suggests that other areas in the carbonate aquifer province may contain deep geothermal resources that are masked by ground-water flow.

  17. An Analysis of Stream Culvert Fish Passage on the Navy Railroad Line between Bremerton and Shelton, Washington

    Energy Technology Data Exchange (ETDEWEB)

    May, Christopher W.; Miller, Martin C.; Southard, John A.

    2004-10-25

    The Navy railroad service line runs between Shelton, Bremerton, and Silverdale, and is used by the Navy to transfer freight to its facilities. It is also used by commercial clients to ship service items and bulk cargo for municipalities along portions of the route. Culverts of various size and construction convey streams and stormwater runoff under the railroad line. These allow transfer of water and, in some cases allow for passage of juvenile and adult salmon into waters upstream of the culverts. As part of this project, 21 culverts along a 34-mile reach (Shelton to Bremerton) of this railroad were surveyed to evaluate their function and ability to allow salmon to utilize the streams. The culverts and attached watersheds were evaluated using criteria developed by the Washington Department of Fish and Wildlife to assign a Priority Index (PI) to barriers present on each fish-bearing stream. The PI is a relative numeric rating indicator, assigned using consistent criteria related to the degree of potential habitat gained by removing barriers and improving the function of the watershed. Of the 21 culverts evaluated, five were found to be complete fish-passage barriers and six were found to be partial barriers, primarily to juvenile salmon. Three of these culverts had PI ratings above 10 and five others had ratings between 7 and 10. Corrective action can be taken based on any PI rating, but the WDFW normally assigns lower priority to projects with PI scores lower than 15. Several of the stream and culverts had previously been evaluated for structural integrity and function and have been scheduled for repair. A narrative indicating the condition of the culvert has been prepared as well as a table indicating the PI scores and a summary of recommendations for action for each culvert.

  18. 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.

  19. Assessment of plasma sprayed coatings to modify surface friction for railroad applications

    Science.gov (United States)

    Davis, Heidi Lynn

    For the past hundred years, railroads have been an important means of transportation for passengers and freight. Over the years train traffic, speeds, and loads have increased steadily leading to a more severe wheel/rail environment that exceeds the design limits of the steels thus causing increased wear, decreased rail life, and higher maintenance costs. The cost of controlling friction and the resulting damage is an area of ever-increasing concern. One potential method of modifying friction is by changing the surface properties of the rail. The work reported herein was carried out as part of a larger effort to modify surface friction of rails. The original focus of this research was to use high velocity air plasma spraying to develop friction enhancing coatings for the rail surface. Using the methodology developed at the Oregon Graduate Institute, the plasma spray parameters were optimized and the coatings were tested on the Amsler machine under rolling/sliding wear conditions to determine viability prior to full scale testing. Stainless steel and composite 1080 steel were investigated as potential materials for increasing friction. Poor results with these coatings shifted the research focus to understanding the durability of the coatings and to failure analysis of initial 1080 steel full scale samples tested by the Facility for Accelerated Service Testing that had failed prematurely. After re-optimization of parameters and preparation methodologies further full scale samples (1080 steel/nylon) were tested and failure analysis was performed. Optical and scanning electron microscopy were used to evaluate the microstructure of coatings from the tested samples. The laboratory scale Amsler test did not appear to be a good indicator of the performance of the coating in full scale tests, because variations in microstructure were caused by differences in sample size, geometry and spraying methods when scaling up from a small Amsler roller to a large rail sample. The

  20. 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

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

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, P.E.; Joy, D.S. [Oak Ridge National Lab., TN (United States); Clarke, D.B.; Jacobi, J.M. [Tennessee Univ., Knoxville, TN (United States). Transportation Center

    1993-03-01

    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. INTERLINE 5. 0 -- An expanded railroad routing model: Program description, methodology, and revised user's manual

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, P.E.; Joy, D.S. (Oak Ridge National Lab., TN (United States)); Clarke, D.B.; Jacobi, J.M. (Tennessee Univ., Knoxville, TN (United States). Transportation Center)

    1993-03-01

    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.

  3. 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.

  4. Fusion and sorting of two parallel trains of droplets using a railroad-like channel network and guiding tracks.

    Science.gov (United States)

    Xu, Linfeng; Lee, Hun; Panchapakesan, Rajagopal; Oh, Kwang W

    2012-10-21

    We propose a robust droplet fusion and sorting method for two parallel trains of droplets that is relatively insensitive to frequency and phase mismatch. Conventional methods of droplet fusion require an extremely precise control of aqueous/oil flows for perfect frequency matching between two trains of droplets. In this work, by combining our previous two methods (i.e., droplet synchronization using railroad-like channels and manipulation of shape-dependent droplets using guiding tracks), we realized an error-free droplet fusion/sorting device for the two parallel trains of droplets. If droplet pairs are synchronized through a railroad-like channel, they are electrically fused and the fused droplets transit to a middle guiding track to flow in a middle channel; otherwise non-synchronized non-fused droplets will be discarded into the side waste channels by flowing through their own guiding tracks. The simple droplet synchronization, fusion, and sorting technology will have widespread application in droplet-based chemical or biological experiments, where two trains of the chemically or biologically treated or pre-formed droplets yield a train of 100% one-to-one fused droplets at the desired outlet channel by sorting all the non-synchronized non-fused droplets into waste outlets.

  5. 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...

  6. 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....

  7. 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。

  8. 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。

  9. 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.

  10. 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

  11. Road and Railroad Tunnels

    Data.gov (United States)

    Department of Homeland Security — Tunnels in the United States According to the HSIP Tiger Team Report, a tunnel is defined as a linear underground passageway open at both ends. This dataset is based...

  12. 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,"

  13. Railroad Redevelopment Planning.

    Science.gov (United States)

    1981-01-01

    and 30 specialty food kiosks are plannes to occupy approximately one half of the available area. Twenty to twenty-five specialty retail stores with 10...1977, the fate of the building was up In the air. However, In August, 1980 the Union Terminal reopened with a new use - a shopping mall . The developer...study for a new hotel and convention center In the Immediate area. A new In town shopping mall was planned within four blocks of the station. - -t -~ .2

  14. 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.

  15. 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.

  16. CaPaSIM statement of methods

    Science.gov (United States)

    Jönsson, Per-Anders; Stichel, Sebastian; Nilsson, Cecilia

    2015-03-01

    In the present paper, the method for calculation of the dynamic pantograph-catenary interaction developed by the Royal Institute of Technology and the Swedish National Rail/Road administration (Trafikverket) is described and the results of the benchmark exercise are discussed. The method is based on the commercial Finite Element software ANSYS. The geometry of the catenary and pantograph is defined in a pre-processor, BARTRAD, developed by Trafikverket, and is automatically translated into an ANSYS model. Basically all types of catenary systems could be handled as well as different types of non-linearity. There are both 2D and 3D versions of the code existing. The results achieved in this first stage of the benchmark are well in line with the results from the other partners in the benchmark study

  17. 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

  18. 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.

  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. The influence of the region between residues 220 and 344 and beyond in Phrixotrix railroad worm luciferases green and red bioluminescence.

    Science.gov (United States)

    Viviani, Vadim R; Joaquim da Silva Neto, Antonio; Ohmiya, Yoshihiro

    2004-02-01

    To find the regions having a major influence on the bioluminescence spectra of railroad worm luciferases, we constructed new chimeric luciferases switching the fragments from residues 1-219 and from 220-545 between Phrixotrix viviani (PxvGR; lambda(max) = 548 nm) green light-emitting luciferase and Phrixothrix hirtus (PxhRE; lambda(max) = 623 nm) red light-emitting luciferases. The emission spectrum (lambda(max) = 571 nm) and K(M) for luciferin in the chimera PxRE220GR (1-219, PxhRE; 220-545, PxvGR) suggested that the region above residue 220 of PxvGR had a major effect on the active site. However, switching the sequence between the residues 220-344 from PxvGR luciferase into PxhRE (PxREGRRE) luciferase resulted in red light emission (lambda(max) = 603 nm), indicating that the region 220-344 by itself does not determine the emission spectrum. Furthermore, the sequence before residue 220 of the green-emitting luciferase is incompatible for light emission with the sequence above residue 220 of PxhRE. These results suggest that the fragments before and after residue 220, which correspond to distinct subdomains, may fold differently in the green- and red-emitting luciferases, affecting the active site conformation.

  1. Development of a new platform for airborne measurements of atmospheric CO2 and CH4 and comparison with GOSAT measurements at Railroad Valley playa, Nevada

    Science.gov (United States)

    Tadic, J.; Loewenstein, M.; Iraci, L. T.; Gore, W.; Schiro, K. A.; Olson, R. A.; Sheffner, E. J.; Yates, E. L.

    2011-12-01

    Measurements of carbon dioxide (CO2) play an important role in understanding the global carbon cycle and its contribution to global warming. In recent years methane (CH4) has received increasing attention as the second most important anthropogenic greenhouse gas because of the high uncertainty of its sources and sinks. Aircraft measurements of greenhouse gases are essential for observations in the free troposphere and lower stratosphere to better understand changes at regional and continental scales. Recently new types of high-accuracy analyzers based on cavity-ring down spectroscopy have become available for use on aircraft. One of them, Picarro 2301-m, was remodeled and adapted for use outside the cabin of an Alpha Jet. In this unique attempt, the instrument was redesigned from a single unit to multiple units that fit inside the Alpha jet wing pod, with special emphasis on internal thermal management. After remodeling, the platform was tested in a laboratory, in a chamber with variable pressure and temperature, and in the field. This newly developed platform exhibits several important characteristics: the modular structure of the platform allows usage of other instruments simultaneously, the platform is capable of measuring both vertical and horizontal profiles of CO2 and CH4, and it is very insensitive to flight maneuvers. The new platform was used on 22-26th of June, 2011, to create spatial and temporal profiles of CO2 and CH4 over a playa in Railroad Valley, Nevada, USA. The playa is a flat, dry lakebed with virtually no vegetation, approximately 15 km x 15 km in size, 1434 m in elevation and 110 km southwest of the nearest city (Ely, Nevada). The time and location of flights were selected to coincide with the overpass of Greenhouse Gases Observing Satellite (GOSAT). Airborne (Alpha Jet) in-situ measurements of CO2 and CH4 were collected to support the vicarious calibration experiment to validate column-averaged dry air mole fractions of CO2 and CH4 (XCO2 and

  2. 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.

  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. Environmental Assessment for Railroad Disposition

    Science.gov (United States)

    2003-09-01

    common dandelion ( Taraxacum officinale ), hairy crabgrass (Digitaria sanquinalis), and some ornamental varieties of plants. This habitat that covers... Taraxacum officinale ), hairy crabgrass (Digitaria sanquinalis), and some ornamental varieties of plants. Portions of the Greenway include some areas that...weedy species such as Field bindweed (Convolvulus arvensis), Common dandelion ( Taraxacum officinale ), Hairy crabgrass (Digitaria sanquinalis), and

  5. 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.

  6. 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.

  7. 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.

  8. 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)

  9. 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)

  10. 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

  11. 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

  12. 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.

  13. 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.

  14. 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.

  15. Cómo convertir una empresa en una caricatura: El Ferrocarril de Tlalpan, 1865-1873 How to Turn a Firm into a Comic: The Tlalpan Railroad, 1865-1873

    Directory of Open Access Journals (Sweden)

    Fernando Aguayo Hernández

    2012-08-01

    Full Text Available Este trabajo reseña los avatares de la empresa del Ferrocarril de Tlalpan que formó una sociedad por acciones para construir la línea del ferrocarril entre las ciudades de México y de Tlalpan en el año de 1865; describe las dificultades de esa sociedad en tiempos de guerra y las circunstancias por las que un proyecto de infraestructura, de mejoras materiales como se les denominaba en la época, sostenido por una amplia base social, acabó siendo apropiada por un sector de la elite económica del país. Además de revalorar la propuesta de los empresarios, se pone énfasis en las caricaturas que se hicieron sobre este tema, porque se tiene la hipótesis de que dichos empresarios, sin ser miembros de las elites y hasta teniendo a dos gobiernos distintos en contra, pudieron sortear temporalmente sus dificultades por el apoyo que les brindó la prensa y lo que se definió en su momento como "la opinión pública".This article documents the ups and downs of the Tlalpan Railroad Company, which established a joint stock company to build a railway line between Mexico and Tlalpan in 1865. It describes the difficulties experienced by the company during the war and outlines the circumstances that led to an infrastructure project with material improvements, as it was called at the time, supported by a broad social base, ending up being appropriated by a sector of the country's economic elite. In addition to re-assessing the business owners' proposal, emphasis is placed on the cartoons on the topic published at the time. The hypothesis is that these business owners, without being members of the elite and despite having two governments against them, were temporarily able to over-come their difficulties due to the support provided by the press, known as "public opinion" at the time.

  16. Sitewide railroad ties volatile organic package

    Energy Technology Data Exchange (ETDEWEB)

    Vogel, R.E.

    1994-08-31

    The initial GC/MS calibration and continuing calibration met all protocols. The calibration working standard is made from 9 separate mixes. One of the mixes (Restek semivolatile mix 3) was doubled, increasing the calibration concentration curve by a factor of two. None of the compounds of interest were affected, and all of the forms have been adjusted. All mass spectral tuning requirements were met for all standards and samples. Internal standard criteria were met for field blank R5306. Perylene-d12 was out on the low side. This sample was reanalyzed and all internal standard criteria were met. The R5302rerr was reported instead of R5302re (the original run of the re-extract) because R5302re failed its internal standard criteria. RSBLK03rr was reported instead of RSBLK03 (the original run of the method blank) because RSBLK03 failed its internal standard criteria. Internal standard criteria for all other samples in this package were met.

  17. 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...

  18. A nanofluidic railroad switch for DNA.

    Science.gov (United States)

    Riehn, Robert; Austin, Robert H; Sturm, James C

    2006-09-01

    We present a metamaterial consisting of a two-dimensional, asymmetric lattice of crossed nanochannels in fused silica, with channel diameters of 80 nm to 140 nm. When DNA is introduced, it is stretched and linearized. We show that the asymmetry in channel dimensions gives rise to a preferred direction for DNA orientation and a preferred direction for transport under dc electrophoresis. Interestingly, the preferred axis of orientation and transport can be switched by 90 degrees through application of an ac voltage. We explain the results in terms of an energy landscape for polyelectrolytes that consists of entropic and dielectrophoretic contributions and whose strength and sign can be tuned by changing the ac field strength.

  19. Railroad transportation of spent nuclear fuel

    Energy Technology Data Exchange (ETDEWEB)

    Wooden, D.G.

    1986-03-01

    This report documents a detailed analysis of rail operations that are important for assessing the risk of transporting high-level nuclear waste. The major emphasis of the discussion is towards ''general freight'' shipments of radioactive material. The purpose of this document is to provide a basis for selecting models and parameters that are appropriate for assessing the risk of rail transportation of nuclear waste.

  20. 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...

  1. 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

  2. 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.

  3. Domínios do café: ferrovias, exportação e mercado interno em São Paulo (1888-1917 Coffee economy: railroads, export and the internal market in São Paulo (1888-1917

    Directory of Open Access Journals (Sweden)

    Pedro Geraldo Tosi

    2011-08-01

    Full Text Available Não obstante o peso decisivo das receitas geradas pelo café para os balanços financeiros das ferrovias paulistas entre 1888 e 1917, e a centralidade da atividade cafeeira na economia paulista de então, discute-se neste artigo a especialização relativa ao nível da produção verificada em São Paulo e a questão dos fretes das ferrovias neste cenário. Parte-se da ideia de que a cafeicultura, em seu desenvolvimento, demandava a diversificação de culturas agrícolas, pois as unidades básicas de produção - as fazendas de café - não se caracterizavam unicamente pela monocultura, sendo que os nexos entre uma produção voltada à exportação e outra voltada ao mercado interno davam-se nas relações de trabalho estabelecidas entre contratantes e contratados, e nas formas pelas quais os fazendeiros expropriavam aqueles que se subordinavam aos seus interesses. Verifica-se no caso estudado o aumento simultâneo das quantidades de café e de alimentos transportadas e transacionadas pela Cia. Mogiana nos marcos da periodização proposta; porém, percebe-se estreita dependência em relação à receita gerada pelo transporte de café. Aponta-se, ainda, a especialização absoluta ao nível do crédito e da circulação (transportes que caracterizavam este complexo econômico.Notwithstanding the decisive weight of values generated by coffee for the financial statements of the São Paulo's railroads between 1888 and 1917, and to the importance of the coffee in this economy, we argues in this article about the relative specialization in agriculturist production verified in São Paulo's lands and the question of the freights of the railroads in this conditions. Our idea is that coffee activity, in its development, demanded the diversification of agricultural cultures, therefore the basic units of production - the coffee farms - were not characterized solely by the cultivation of coffee, being that the nexuses between a production come back to

  4. 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.

  5. 78 FR 66987 - Railroad Safety Technology Program Grant Program

    Science.gov (United States)

    2013-11-07

    ... (cash or in-kind) match requirement. DATES: FRA will accept grant applications until February 5, 2014... organizations to fully and successfully execute proposal plan within proposed timeframe and budget. 5... be considered. Information Collection: The Office of Management and Budget (OMB) has approved...

  6. 75 FR 15484 - Railroad Safety Technology Program Grant Program

    Science.gov (United States)

    2010-03-29

    ... minimum 20 percent grantee cost share (cash or in-kind) match requirement. DATES: FRA will begin accepting... proposed timeframe and budget. 5. Collaborative Efforts (15%): The degree to which proposed effort is... Budget (OMB), under emergency clearance procedures, has approved the information collection...

  7. Analysis of the Acoustic Response of a Railroad Bridge

    Science.gov (United States)

    2009-10-01

    atmospheric explosions, surf, missiles, rockets, weather systems and even animal vocalizations [1]. In order for up-going infrasonic energy to be...systems – Animal vocalizations – Urban Noise* PREMISE: Structures generate coupled low-frequency acoustics as fundamental modes of motion What is...rating tests: – Strain Gages (44 Used) • Main Structural Elements – One Train Engine Stringer Bottom Chord Diagonal Chord Diagonal Floor Beam Top

  8. 76 FR 2748 - Competition in the Railroad Industry

    Science.gov (United States)

    2011-01-14

    ... Infrastructure Investment (March 2009). These reports are also available in the E-Library on the Board's Web site... Christensen Study. Supplemental Report on Capacity & Infrastructure Inv., EP 680 (Sub-No. 1) (STB served Apr... movement. Because the Bottleneck cases raised issues of broad importance, the Board provided for...

  9. Occupational Stress Perception and Healthy Lifestyle in Railroad Workers

    Directory of Open Access Journals (Sweden)

    Iztok Ostan

    2011-05-01

    In general, lifestyle was not confirmed as statistically significant (at 0.05 level moderator of perceived job stress, explaining just 11% of variance. However, there are some dimensions that are significantly (P<0.05 associated with occupational stress: employees that have regular bowel movements, sleep well and evaluate that they do not eat too much perceive their work as less stressful.

  10. Railroads for Santa Fe 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 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...

  12. 49 CFR 392.10 - Railroad grade crossings; stopping required.

    Science.gov (United States)

    2010-10-01

    ... tracks for an approaching train; and ascertains that no train is approaching. When it is safe to do so, the driver may drive the commercial motor vehicle across the tracks in a gear that permits the commercial motor vehicle to complete the crossing without a change of gears. The driver must not shift...

  13. Railroads for Valencia 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. 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.

  15. 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...

  16. 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...

  17. Railroads for Bernalillo 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...

  18. 75 FR 8788 - Railroad Safety Advisory Committee; Notice of Meeting

    Science.gov (United States)

    2010-02-25

    ... RSAC meeting will be held at the Marriott Washington, Wardman Park Hotel, located at 2660 Woodley Road... industry perspectives. In addition, there are non-voting advisory representatives from the...

  19. Railroads for Cibola 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...

  20. 49 CFR 219.203 - Responsibilities of railroads and employees.

    Science.gov (United States)

    2010-10-01

    ... involved in the accident or incident. In any case where an operator, dispatcher, signal maintainer or other... duty tour. An employee who has been transported to receive medical care is not released from duty...

  1. 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...

  2. 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.

  3. Railroads for Grant 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...

  4. 77 FR 22381 - Odorant Fade in Railroad Tank Cars

    Science.gov (United States)

    2012-04-13

    ... when injected at standard industry rates. The Occupational Safety and Health Administration's..., allergies, head colds, smoking, or the recent use of alcohol or drugs. Colorimetric tube testing and the...

  5. Railroads for Lea 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...

  6. 76 FR 41555 - Tupelo, Mississippi Railroad Relocation Project

    Science.gov (United States)

    2011-07-14

    ... Transportation, Environmental Division (87-01), P.O. Box 1850, Jackson, MS 39215-9947. Comments may also be... Thurman, Environmental Division Manager, Mississippi Department of Transportation, P.O. Box 1850, Jackson... copies of the Draft EIS and appendices at the following locations: Tupelo City Hall, 71 East Troy...

  7. 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...

  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. 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.

  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. 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.

  13. Study on Electromagnetic Interference of high-speed railway EMU

    OpenAIRE

    Cheng, Qiang; Liu, Jin-Jiang; Cheng, Ning

    2013-01-01

    Electromagnetic radiation generated by pantograph-catenaries detachment is one of the inevitable problems with the development of high-speed railway this paper is focusing on the generating mechanism and characteristics of electromagnetic noise caused by pantograph-catenaries system. Based on previous research, we build an integrated model of catenaries and locomotive system, and study the electromagnetic disturbance characteristics using software FEKO. The simulation experiment results in th...

  14. 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.

  15. 京沪铁路电气化工程接触网系统提速技术%Speed-up Technology of Beijing-Shanghai Railway Electrification Catenary System

    Institute of Scientific and Technical Information of China (English)

    常国安; 刘实

    2006-01-01

    京沪铁路电气化工程是我国铁路第六次大提速的重点工程.该工程要满足行车200km/h,达到高可靠、少维修的要求,采取提高接触网系统稳定性和电气连接性能、改善弓网关系、回流、接地及防雷等多项措施,应用预绞丝、化学锚栓、弹性补偿器等新技术,使京沪铁路电气化提速工程达到我国领先水平.

  16. 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.

  17. [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.

  18. The Vulnerability of the United States Railroad System to Terrorist Attacks

    Science.gov (United States)

    2015-06-12

    such as, closed circuit television , random screening, high visibility police, and specially trained canine teams withstand a deliberate and well...engineer and conductor’s lack of sleep . It was also reported that a contributing factor was the conductor’s consumption of alcohol on the evening...closed circuit television (which is probably being used now for vehicle traffic monitoring) could be used to detect objects on the tracks or crossings

  19. 75 FR 27672 - Restrictions on Railroad Operating Employees' Use of Cellular Telephones and Other Electronic...

    Science.gov (United States)

    2010-05-18

    ..., 2005, to December 31, 2007. Based on the sampling method of the survey, findings were representative of... moderate to heavy traffic. This type of purposive sample served well the intentions of the study; however... data on driver electronic device use in the United States.\\6\\ Based on the sampling method of...

  20. 76 FR 72997 - Railroad Safety Advisory Committee (RSAC); Working Group Activity Update

    Science.gov (United States)

    2011-11-28

    ... National Association of Home Builders, National Housing Center, located at 1201 15th Street NW., Washington..., focusing on low location emergency exit path marking, emergency lighting, and emergency signage. The task... of 49 CFR Part 229 and was unable to reach consensus regarding locomotive cab temperature...

  1. 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...

  2. 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...

  3. 78 FR 18763 - Establishment of the Harriet TubmanUnderground Railroad National Monument

    Science.gov (United States)

    2013-03-28

    ... area of her birth many times to lead family, friends, and other enslaved African Americans north to... heartfelt ``God bless you'' has been your only reward. The midnight sky and the silent stars have been the witnesses of your devotion to freedom and of your heroism. The ``midnight sky and the silent stars'' and...

  4. 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...

  5. 49 CFR Appendix B to Part 209 - Federal Railroad Administration Guidelines for Initial Hazardous Materials Assessments

    Science.gov (United States)

    2010-10-01

    ... a violator with an average compliance history. In an “average violation,” the respondent has... information “immediately accessible” with no negative effect on emergency response 7,500. 172.604 Emergency... analyses within the prescribed time frame 2,000 172.820(g) Failure to include one of the...

  6. 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.

  7. 75 FR 3523 - Union Pacific Railroad Company-Temporary Trackage Rights Exemption-BNSF Railway Company

    Science.gov (United States)

    2010-01-21

    ...), as modified in Mendocino Coast Ry., Inc.--Lease and Operate, 360 I.C.C. 653 (1980), and any employees... copies of all pleadings, referring to STB Finance Docket No. 35342, must be filed with the...

  8. 75 FR 2592 - Pioneer Industrial Railway Co.-Trackage Rights Exemption-Central Illinois Railroad Company

    Science.gov (United States)

    2010-01-15

    ...., Inc.--Lease and Operate, 360 I.C.C. 653 (1980). This notice is filed under 49 CFR 1180.2(d)(7). If the... relationship pursuant to a lease agreement, and (3) permit PIRY to continue to provide common carrier service..., referring to STB Finance Docket No. 35341, must be filed with the Surface Transportation Board, 395 E...

  9. 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),...

  10. 77 FR 24257 - Railroad Safety Advisory Committee (RSAC); Working Group Activity Update

    Science.gov (United States)

    2012-04-23

    ... operators of high-speed equipment, car builders, wheel/rail interaction dynamics specialists, and other RSAC... with unsafe wheel forces and acceleration, thorough reviews of vehicle qualification and revenue.... The associated NPRM is currently in the final stages of development with an anticipated spring...

  11. 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...

  12. 76 FR 10430 - BNSF Railway Company-Temporary Trackage Rights Exemption-Union Pacific Railroad Company

    Science.gov (United States)

    2011-02-24

    ... permit BNSF to move empty and loaded ballast trains to and from the ballast pit at Elsey, Cal., which is... notice contains false or misleading information, the exemption is void ab initio. Petitions to revoke...

  13. 77 FR 35466 - Pilot Project Grants in Support of Railroad Safety Risk Reduction Programs

    Science.gov (United States)

    2012-06-13

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION..., injuries, and fatalities. The statute also authorized the Secretary to conduct behavior-based safety and... seeking innovative pilot projects that eliminate or reduce accidents where the primary or...

  14. 76 FR 4276 - Hazardous Materials: Improving the Safety of Railroad Transportation of Hazardous Materials

    Science.gov (United States)

    2011-01-25

    ... opportunity to speak at the meeting, any person wishing to present an oral statement should notify Mr. Karl...; jacket, tank car shell, or head damage; stub sill weld cracks; failures of heater coils or...

  15. 75 FR 38923 - Regulated Navigation Area: Niantic Railroad Bridge Construction, Niantic, CT

    Science.gov (United States)

    2010-07-07

    ... detailing the required channel work phases that will need waterway closures. There currently planned and... exceptions: (1) The channel will remain open during the four days on either side of the full moon to... RNA only at night on Sunday and Monday, not including full moon tide weeks for night fishing...

  16. 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...

  17. 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...

  18. 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...

  19. 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...

  20. 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.

  1. 77 FR 13971 - Regulated Navigation Area; MBTA Saugus River Railroad Drawbridge Rehabilitation Project, Saugus...

    Science.gov (United States)

    2012-03-08

    ... 617-223-4000, email Mark.E.Cutter@uscg.mil or Lieutenant Junior Grade Isaac Slavitt, Coast Guard First District Waterways Management Branch, telephone 617-223- 8385, email Isaac.M.Slavitt@uscg.mil . If you have... will communicate with vessels via VHF-FM radio or loudhailer. Members of the Coast Guard Auxiliary...

  2. 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...

  3. 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...

  4. 75 FR 76520 - Tennessee Southern Railroad Company, Patriot Rail, LLC, Patriot Rail Holdings LLC, and Patriot...

    Science.gov (United States)

    2010-12-08

    ... (PRL) and its subsidiaries, Patriot Rail Holdings LLC (PRH) and Patriot Rail Corp. (Patriot... within a corporate family. PRL proposes to restructure its corporate family by converting two of its...) will become Piedmont & Northern Railway, LLC (PNRLLC). PRL directly controls noncarrier PRH, which...

  5. 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)...

  6. 78 FR 17468 - Alabama Railroad Co.-Abandonment Exemption-in Monroe County, AL

    Science.gov (United States)

    2013-03-21

    ... Abandonments to abandon approximately 7.42 miles of rail line between milepost 655.20 (east of Route 21 at Tunnel Springs) and milepost 662.62 (west of Main Street in Beatrice), in Monroe County, Ala. The line traverses United States Postal Service Zip Codes 36425 and 36471. ALAB has certified that: (1) No...

  7. 77 FR 16585 - Arkansas Midland Railroad Company, Inc.-Abandonment Exemption-in Phillips County, AK

    Science.gov (United States)

    2012-03-21

    ..., in Phillips County, Ark. The line traverses United States Postal Service Zip Codes 72342 and 72390. AKMD has certified that: (1) No local traffic has moved over the line for at least 2 years; (2) there... CFR part 1152 subpart F-Exempt Abandonments to abandon an approximately 2.66-mile rail line known...

  8. 76 FR 64992 - Carrollton Railroad-Abandonment Exemption-in Carroll County, KY CSX Transportation, Inc...

    Science.gov (United States)

    2011-10-19

    ..., Carroll County, KY.\\2\\ The line traverses United States Postal Service Zip Code 41008. \\1\\ CRR is a wholly owned and controlled subsidiary of CSXT. \\2\\ CSXT states that empty cars are stored on the line... discontinue service over, approximately 0.79 miles of rail line on CSXT's Northern Region, Louisville...

  9. 78 FR 54512 - Illinois Central Railroad Company-Abandonment Exemption-in Hinds County, Miss.

    Science.gov (United States)

    2013-09-04

    ... part 1152 subpart F--Exempt Abandonments to abandon approximately 0.16 miles of rail line between mileposts 0.36 and 0.20, in Jackson, Hinds County, Miss. The line traverses United States Postal Service Zip... that: (1) No local traffic has moved over the line for at least two years; (2) there is no...

  10. 78 FR 44190 - Union Pacific Railroad Company-Abandonment Exemption-in Miami County, KS

    Science.gov (United States)

    2013-07-23

    ....0 to milepost 335.5 near Osawatomie, in Miami County, Kan. The line traverses United States Postal Service Zip Code 66064. UP has certified that: (1) No local traffic has moved over the line for at least two years; (2) there is no overhead traffic on the line; (3) no formal complaint filed by a user...

  11. 75 FR 73161 - Delta Southern Railroad, Inc.-Abandonment Exemption-In East Carroll Parish, LA

    Science.gov (United States)

    2010-11-29

    ....\\1\\ The line traverses United States Postal Service Zip Code 71254. \\1\\ On November 16, 2010, DSR supplemented its notice of exemption. DSR has certified that: (1) No local traffic has moved over the line for... subpart F-Exempt Abandonments to abandon 8 miles of rail line extending from milepost 463.0, near...

  12. 78 FR 21494 - Union Pacific Railroad Company-Abandonment Exemption-in Washington County, Idaho

    Science.gov (United States)

    2013-04-10

    .... 1152 subpart F--Exempt Abandonments to abandon 0.28 miles of rail line (New Meadows Industrial Lead), between mileposts 0.22 and 0.50 at Weiser, in Washington County, Idaho. The line traverses United States Postal Service Zip Code 83672. UP has certified that: (1) No local traffic has moved over the line for...

  13. 20 CFR Appendix 3 to Part 220 - Railroad Retirement Board Occupational Disability Standards

    Science.gov (United States)

    2010-04-01

    ... 2 S Distant 12.8 1 S Oral Cavity/Pharyngeal: Local 76.2 2 S Regional 40.9 2 S Distant 18.7 1 S... which are described below. A. Imaging studies—These studies can include MRI, CAT scan, myelogram, or... Bronchiectasis demonstrated Recommended. Chest CAT scan Bronchiectasis demonstrated Recommended....

  14. Analysis of Traffic Safety Factors at Level Rail-Road Crossings

    Directory of Open Access Journals (Sweden)

    Tomislav Mlinarić

    2012-10-01

    Full Text Available The paper analyses the main factors of traffic safety andreliabilityat level crossings. The number and causes of accidentsare stated, that result from ignorance, insufficient training ofthe traffic participants, their ilnsponsibility and insufficient orincomplete legislation, as well as from insufficiently professionaland scientifically not serious enough approach to solvingthis cardinal problem in road and railway traffic. Based on theanalysis the causes are determined and solutions proposed, aswell as more efficient methods to improve safety and reduce thenumber of traffic accidents at level crossings.

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

    Science.gov (United States)

    2010-09-27

    ... driving. H. Other Efforts 1. State Action Texting while driving is prohibited in 30 States, the District... the Rulemaking F. Distracted Driving Impacts All Transportation Modes 1. Aviation 2. Rail 3... Naturalistic Driving Study 3. National Occupant Protection Use Survey (NOPUS) 4. Motor Vehicle Occupant...

  17. An Investigation of the Impact Resistance of Glazing Materials for Railroad Vehicles

    Science.gov (United States)

    1979-09-01

    0 N U) 0 N4 o 𔃽 N 00 - . -. ., 4 4 -N IT r- N to) Nr - 0 mOCa ’ 0 C4L I£ C U) Ch M) 0 to) 00 vO 07- ~ $0U 0 J. 0 4 tI t) N N4 N C ~ . W4. V 44...materials; Mr. J. P. McLain and Mr. Richard Bailey of the New Mexico Institute of Mining & Technology (TIiRA) for their assistance in conducting the

  18. 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...

  19. 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...

  20. 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...

  1. 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...

  2. 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,...

  3. 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.

  4. 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...

  5. Survivability Tests on a Nuclear Waste Cask in Simulated Railroad Accident Fires.

    Science.gov (United States)

    1983-06-01

    Test Number 1 42 11. The Wind Direction as a Function of Time During the HNPF Cask Thermal Test Number 1...43 12. The Wind Speed as a Function of Time During the HNPF Cask Thermal Test Number 1 .......................................... 44 13. The Ambient...60 27. A View of the HNPF Cask Taken During Torch Thermal Test Number 2 62 28. The Wind Direction as a

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

    Directory of Open Access Journals (Sweden)

    Jonathan Matusitz

    2009-01-01

    Full Text Available Este manuscrito examina el sistema ferroviario como una combinación de humanos y máquinas en relación simbiótica, y explica cómo el ferrocarril ejerció un importante efecto sobre la vida en América cuando hizo irrelevante el sistema de tiempo físico -natural-que existe en las ciudades y países en los que los relojes iban acordes a las condiciones climáticas. El autor apunta que el ferrocarril es un órgano social, capaz de evolucionar para servir a la demanda, modelando y alterando -pero nunca reemplazando-el contacto entre los humanos, y que continuará para mejorarlo y facilitarlo. Este manuscrito analiza los impactos sociales, transculturales, psicológicos y financieros de la vía férrea en la sociedad norteamericana en los últimos doscientos años. La medida del progreso en los Estados Unidos es equivalente al conjunto de cosas que se han sacrificado.

  7. 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...

  8. 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.

  9. 77 FR 6411 - Training, Qualification, and Oversight for Safety-Related Railroad Employees

    Science.gov (United States)

    2012-02-07

    ... generally accepted by the academic and training communities for formal initial training, on-the-job training..., and on-the-job training criteria; testing and skills evaluation measures designed to ensure continual... auditor who has been certified by an accredited crane operator testing organization, among...

  10. Representation of Value and Estimation Meanings in the Terminology of Railroad Sublanguage

    Directory of Open Access Journals (Sweden)

    Asima M. Turekhanova

    2014-03-01

    Full Text Available The article provides a retrospective analysis of the linguists’ views on the technical term, and discusses linguistic means of expression, used in the “railroad” sublanguage within axiological linguistics. Each artificially created artefact is the result of appraising and intellectual human activity and as a product of this activity reflects the value – fragment of the technical picture of the world.

  11. 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),...

  12. Study on Electromagnetic Interference of high-speed railway EMU

    Directory of Open Access Journals (Sweden)

    CHENG Qiang

    2013-07-01

    Full Text Available Electromagnetic radiation generated by pantograph-catenaries detachment is one of the inevitable problems with the development of high-speed railway this paper is focusing on the generating mechanism and characteristics of electromagnetic noise caused by pantograph-catenaries system. Based on previous research, we build an integrated model of catenaries and locomotive system, and study the electromagnetic disturbance characteristics using software FEKO. The simulation experiment results in the end can not only provide accurate data, but also give a more intuitive understanding of electromagnetic field distribution and attenuation characteristics generated by pantograph detachment.    

  13. 9 CFR 71.6 - Carrier responsible for cleaning and disinfecting of railroad cars, trucks, boats, aircraft or...

    Science.gov (United States)

    2010-01-01

    ... interstate transportation of cattle, sheep, goats, swine, poultry, or other animals affected with, or..., bovine foot rot, brucellosis, ram epididymitis, ringworm, infectious keratitis, and arthritis...

  14. 75 FR 53005 - Privacy Act of 1974, as amended; Notice of Computer Matching Program (Railroad Retirement Board...

    Science.gov (United States)

    2010-08-30

    ..., Earnings Recording and Self-Employment Income System (MEF); 71 FR 1819 (January 11, 2006) 3. SSA/OSR 60..., Office of Management and Budget (OMB). ADDRESSES: Interested parties may comment on this publication by... program was published at 73 FR 31516-31517 (June 2, 2008). B. RRB Computer Matches Subject to 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

    ... seal pursuant to 49 CFR 1150.43(h)(1)(ii). \\2\\ ESPN states that it will also be leasing from NSR... credit for each car interchanged with NSR. ESPN states that NSR initially proposed a fixed rental...

  16. 75 FR 62920 - Eastern Berks Gateway Railroad Company-Modified Rail Certificate-in Berks County, PA

    Science.gov (United States)

    2010-10-13

    ... Certificate of Public Convenience and Necessity to lease and operate an approximately 8.6-mile line of...), pursuant to 49 CFR 1150.22.\\1\\ \\1\\ The County originally filed an offer of financial assistance (OFA) to... Counties, Pa., AB 1020X (STB served Apr. 9, 2009). Pursuant to a Lease and Operating Agreement, EBGR,...

  17. 76 FR 64425 - Union Pacific Railroad Company-Abandonment Exemption-in Pottawattamie County, IA; Iowa Interstate...

    Science.gov (United States)

    2011-10-18

    ... Service Zip Code 51503 and include no stations; the IAIS line traverses United States Postal Service Zip Codes 51501 and 51503 and also includes no stations. In addition to an exemption from the prior approval... interested persons should be aware that, following abandonment of rail service and salvage of the line,...

  18. 78 FR 17282 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System

    Science.gov (United States)

    2013-03-20

    ... Privacy Act Statement in the Federal Register published on April 11, 2000 (65 FR 19477). Issued in... installing new microprocessor-based equipment, houses, and signals. The existing dwarf signals on A&R will...

  19. 75 FR 54219 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System...

    Science.gov (United States)

    2010-09-03

    ... Locking, 236.380 Indication Locking, and 236.381 Traffic Locking, on vital microprocessor-based systems. NJT proposes to verify and test signal locking systems controlled by microprocessor- based equipment... points and other locations are controlled by solid-state vital microprocessor-based systems....

  20. 75 FR 21717 - Notice of Application for Approval of Discontinuance or Modification of a Railroad Signal System...

    Science.gov (United States)

    2010-04-26

    ... Statement in the Federal Register published on April 11, 2000 (65 FR 19477) or at http://www.dot.gov/privacy... OST input to the appropriate microprocessor and put all signals to stop when one or both switches...