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Federal Railroad Administration

rosaP Repository & Open Science Access Portal

The Federal Railroad Administration (FRA) promotes safe and environmentally sound rail transportation. The FRA conducts research and development tests to evaluate projects in support of its safety mission and to enhance the railroad system as a national transportation resource. Public education campaigns on highway-rail grade crossing safety and the danger of trespassing on rail property are also administered by FRA. Bookmark this collection https://rosap.ntl.bts.gov/collection_fra or https://doi.org/10.21949/1530835.

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Showing 941 - 960 of 1162 results
  • Compliance with Railroad Operating Rules and Corporate Culture Influences Results of a Focus Group and Structured Interviews
    Compliance with Railroad Operating Rules and Corporate Culture Influences: Results of a Focus Group and Structured Interviews
    Coplen, Michael K.
    1999-10-01 | PDF
    A focus group was held at the November 11, 1996, meeting of the Operating Rules Association of North American Railroads to discuss the general issue of compliance and operating rules. Twelve operating rules officers participated, representing Class I, II, and III railroads. Individual structured interviews were also conducted both prior to and foll ...
  • Improving Railroad Safety and Rail Passenger Technology through Targeted Research and Demonstrations 19921997
    Improving Railroad Safety and Rail Passenger Technology through Targeted Research and Demonstrations 1992-1997
    United States. Department of Transportation. Federal Railroad Administration  ...
    1999-08-01 | PDF
    The Office of Railroad Development of the Federal Railroad Administration conducts research, development, test, and evaluation projects to directly support the Federal Railroad Administrations safety responsibility and to enhance the railroad system, as a significant national transportation resource. This report summarizes the Office of Railroad De ...
  • Evaluation of a TopofRail Lubrication System
    Evaluation of a Top-of-Rail Lubrication System
    Davis, K. ;
    Strickland, W.
    1999-08-01 | PDF
    This report documents the testing of a top of the rail lubricant applied in computer-controlled quantities. This system, the SENTRAEN 2000 (trademark), was developed by Tranergy. The testing was carried out over CSXT operated track between Corbin, KY and Cartersville, GA on various train runs from February 15, 1999 to March 4, 1999. These tests, sp ...
  • Railroad Safety Statistics Annual Report 1998
    Railroad Safety Statistics Annual Report 1998
    United States. Department of Transportation. Federal Railroad Administration
    1999-07-01 | PDF
    This edition of the Railroad Safety Statistics is a composite of previous safety bulletins prepared by the Federal Railroad Administration (FRA). These include: the Accident/Incident Bulletin; the Highway-Rail Crossing Accident/Incident And Inventory Bulletin; and the Trespasser Bulletin. The consolidation of accident/incident statistics previously ...
  • Experimental 3D residual stress measurement in rails with thermal annealing
    Experimental 3-D residual stress measurement in rails with thermal annealing
    Wang, B. ;
    Zheng, T.
    1999-07-01 | PDF
    This report describes a novel method to determine residual stresses in railroad rails. The method uses thermal annealing to relieve the internal stresses in rail slices while advanced techniques (Miore and Twyman/Green interferometry) are applied to measure the deformation of rail slices during a stress relief process which is accomplished by therm ...
  • Locomotive crashworthiness design modifications study
    Locomotive crashworthiness design modifications study
    Jeong, David ;
    Severson, Kristine
    1999-04-01 | PDF
    A study has been conducted of locomotive crashworthiness in a range of collision scenarios to support the efforts of the Locomotive Crashworthiness Working Group of the Federal Railroad Administration's Railroad Safety Advisory Committee (RSAC) to develop locomotive crashworthiness requirements. The RSAC is a government/industry committee including ...
  • Traintotrain rear end impact tests volume I preimpact determination of vehicle properties
    Train-to-train rear end impact tests - volume I - pre-impact determination of vehicle properties
    Anderson, R. L. ;
    Cramer, P. L.
    1999-03-31 | PDF
    This final report documents these nine tests. Volume I, Pre-Impact Determination of Vehicle Properties, summarizes the vehicle properties obtained prior to the impact tests. These vehicle properties were used in computer simulation of the impact tests and included weights, pitch moments of inertia, spring rated, vertical center of gravity location, ...
  • Passenger Acceptance of Alignments with Frequent Curves in Maglev or Other VeryHighSpeed Ground Systems
    Passenger Acceptance of Alignments with Frequent Curves in Maglev or Other Very-High-Speed Ground Systems
    Harding, J. ;
    Pollard, John K.
    1999-03-31 | PDF
    This study explored comfort and motion-sickness effects of Maglev travel in corridors characterized by frequent curves. A procedure was developed for estimating the propensity of a given set of ride motions to induce motion sickness, generating a number called the Motion Sickness Dosage Value (MSDV), from which the proportion of passengers who will ...
  • Understanding how train dispatchers manage and control trains results of a cognitive task analysis
    Understanding how train dispatchers manage and control trains : results of a cognitive task analysis
    Roth, Emilie M. ;
    Malsch, N.
    1999-03-01 | PDF
    This report documents the results of a preliminary Cognitive Task Analysis (CTA) that examined how experienced train dispatchers manage andschedule trains in today's environment The objective was to understand the cognitive demands placed on train dispatchers and the strategiesthat experienced dispatchers have developed in response to those demands ...
  • Experimental determination of release fields in cut railroad car wheels
    Experimental determination of release fields in cut railroad car wheels
    Czarnek, R.
    1999-02-01 | PDF
    A new approach to the measurement of residual stresses in railroad wheels is investigated using a saw cut method of releasing stresses in the structure. High-sensitivity moire interferometry combined with Michelson interferometry provides full-field information about distribution of displacements around a saw cut notch on both flat surfaces of the ...
  • Riskbenefit assessment of delayed action concept for rail inspection
    Risk/benefit assessment of delayed action concept for rail inspection
    Tang, Y. H. ;
    Jeong, D. Y.
    1999-02-01 | PDF
    A Monte Carlo simulation of certain aspects of rail inspection is presented. The simulation is used to investigate alternative practices in railroad rail inspection programs. Results are presented to compare the present practice of immediately repairing every detected defect with an alternative practice under which repair can be delayed for defects ...
  • Development of a hazardbased method for evaluating the fire safety of passenger trains
    Development of a hazard-based method for evaluating the fire safety of passenger trains
    Bukowski, Richard W. ;
    Peacock, Richard D.
    1999-01-01 | PDF
    The fire safety of U.S. passenger rail trains currently is addressed through small-scale flammability and smoke emission tests and performance criteria promulgated by the Federal Railroad Administration (FRA). The FRA approach relies heavily on test methods applied to the primary combustible materials of rail vehicle components. As building fire sa ...
  • Freight car reflectorization
    Freight car reflectorization
    Carroll, A. A. ;
    Multer, J.
    1999-01-01 | PDF
    Collisions at highway-railroad grade crossings have posed a significant safety problem. To reduce the number of these collisions at highway-railroad gradecrossings where train visibility is a contributing factor, the Federal Railroad Administration (FRA) is investigating measures to enhance the visibility of trainswith the use of retroreflectors on ...
  • Railroad Horn Systems Research
    Railroad Horn Systems Research
    Rapoza, Amanda S. ;
    Rickley, Edward J.
    1999-01-01 | PDF
    The U.S. Department of Transportation, Research and Special Programs Administration, Volpe National Transportation Systems Center, in support of the Federal Railroad Administration is conducting a research program with the goal of reducing the number of fatalities and injuries at highway-rail grade crossings. As part of this program, a study is bei ...
  • Fundamentals of track lateral shift for highspeed rail applications
    Fundamentals of track lateral shift for high-speed rail applications
    Kish, Andrew ;
    Samavedam, Gopal
    1998-12-01 | PDF
    The fundamental mechanics of track lateral shift due to vehicle and thermally induced loads are defined, and an analytic approach is presented for the determination of "limit" loads and deflections on the track to prevent progressive lateral shift. The proposed approach consists of the coupled use of a comprehensive vehicle-track dynamic model to e ...
  • Estimation of Rail Wear Limits Based on Rail Strength Investigations
    Estimation of Rail Wear Limits Based on Rail Strength Investigations
    Jeong, David Y. ;
    Tang, Yim H.
    1998-12-01 | PDF
    This report describes analyses performed to estimate limits on rail wear based on strength investigations. Two different failure modes are considered in this report: (1) permanent plastic bending, and (2) rail fracture. Rail bending stresses are calculated using the classical theory of beams on elastic foundation. The effect of wear is modeled as a ...
  • Propagation Analysis of Transverse Defects Originating at the Lower Gage Corner of Rail
    Propagation Analysis of Transverse Defects Originating at the Lower Gage Corner of Rail
    Jeong, David Y. ;
    Tang, Yim H.
    1998-12-01 | PDF
    This report describes analyses performed to examine the growth rate of a particular transverse defect that forms in the rail head. The most common transverse defect found in rail, known as the detail fracture, has been studied in previous work. The present analyses, however, focuses on another internal transverse defect which originates at the lowe ...
  • Safety Evaluation of TSM Prototype Electronically Controlled Pneumatic Train Brake System on Brake Rack
    Safety Evaluation of TSM Prototype Electronically Controlled Pneumatic Train Brake System on Brake Rack
    Carlson, Fred
    1998-11-01 | PDF
    Performance standards for Electronically Controlled Pneumatic (ECP) freight brake systems for use on the North American railroads are being developed by working groups composed of personnel from the railroad industry, the railroad supply industry, and AAR technical staff. Draft specifications (S-4200) have been developed covering system performance ...
  • Training requirements for railroad dispatchers objectives syllabi and test designs
    Training requirements for railroad dispatchers : objectives, syllabi and test designs
    Reinach, S. ;
    Gertler, J.
    1998-11-01 | PDF
    This report presents the results of a study to develop railroad dispatcher training objectives, syllabi for three types of training programs and test designs for the three programs. Information about current railroad dispatching methods and training programs, assembled through site visits and interviews with railroad training officials, provided th ...
  • Estimation of Residual Stresses in Railroad Commuter Car Wheels Following Manufacture Presentation
    Estimation of Residual Stresses in Railroad Commuter Car Wheels Following Manufacture [Presentation]
    Gordon, Jeff ;
    Perlman, A. Benjamin
    1998-11-01 | PDF
    A finite element simulation is presented for the prediction of residual stresses resulting from the heat treatment of railroad commuter car wheels during manufacture. The quenching and annealing segments of the wheel manufacturing process are simulated using a decoupled heat transfer and stress analysis. A set of baseline parameters which character ...
941 - 960 / 1162