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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 881 - 900 of 1212 results
  • Locomotive Based Top of Rail Friction Control Implementation Results and Issues Phase 1 Atomized SprayFriction Control Product
    Locomotive Based Top of Rail Friction Control, Implementation Results and Issues: Phase 1: Atomized Spray/Friction Control Product
    Reiff, Richard ;
    Pena, Ruben ;
    Davis, Ken
    ; etc...
    2004-03-01 | PDF
    This report documents the first phase of a test to determine what effect top of rail (TOR) friction modification has on rail surface friction, lateral curving forces, and train handling. In Phase 1, one type of TOR friction modifier and application system was evaluated, primarily on coal trains operating over a 120-mile segment which featured curve ...
  • Railroad Safety Statistics Annual Report 2002
    Railroad Safety Statistics Annual Report 2002
    United States. Department of Transportation. Federal Railroad Administration
    2004-03-01 | Railroad Safety Statistics Annual Reports | PDF
    It is hoped that the information provided in this publication will provide insight into the most significant safety issues facing the rail industry and, in turn, lead to continued rail safety improvements. Only by continuing our understanding about how and why railroad accidents and incidents occur, can we hope to approach our goal of "Zero Toleran ...
  • Research Results Development and Deployment of a Vehicle Tracking System
    Research Results: Development and Deployment of a Vehicle Tracking System
    Spons, Gunars
    2004-01-01 | Research Results | PDF
    A vehicle tracking system (VTS) was installed and deployed at the Federal Railroad Administration's (FRA's) Transportation Technology Center (TTC) in November 2002. The fundamental goal of this program was to enhance the already high level of safety for TTC personnel in a spread out field test environment and allow for a higher level of asset monit ...
  • Research Results A Preliminary Design of a System to Measure Vertical Track Modulus From a Moving Railcar
    Research Results: A Preliminary Design of a System to Measure Vertical Track Modulus From a Moving Railcar
    Fateh, Mahmood
    2004-01-01 | Research Results | PDF
    Track modulus is a measure of vertical roadbed stiffness and is an important parameter in track quality and performance. Modulus is defined by the ratio of rail deflection to the vertical contact pressure between rail base and track foundation. This project is to develop a system for on-board, real-time, non-contact measurement of track modulus. A ...
  • Commuter rail seat testing and analysis of facing seats
    Commuter rail seat testing and analysis of facing seats
    Vaningen-Dunn, Caroline
    2003-12-01 | PDF
    Tests have been conducted on the Bombardier back-to-back commuter rail car seat in a facing-seat configuration to evaluate its performance under static and dynamic loading conditions. Quasi-static tests have been conducted to establish the load deflection characteristics and failure mechanisms of the seat. Dynamic tests have also been conducted wit ...
  • Gage Restraint Measurement System Comparison Tests Railbound and HiRail Vehicles
    Gage Restraint Measurement System Comparison Tests: Railbound and Hi-Rail Vehicles
    Choros, John ;
    Sussmann, Ted ;
    Fateh, Mahmood
    ; etc...
    2003-12-01 | PDF
    Comparative tests were conducted to evaluate the gage restraint measurement system (GRMS) testing capabilities of a railbound GRMS vehicle, Federal Railroad Administration's (FRA's) T-6, and a hi-rail vehicle, Holland Company's TrackStar GRMS system. The test objectives were to compare the performance of the two vehicles by monitoring the testing c ...
  • Analysis of collision safety associated with CEM and conventional cars mixed within a consist
    Analysis of collision safety associated with CEM and conventional cars mixed within a consist
    Severson, Kristine J. ;
    Tyrell, David C. ;
    Perlman, A. Benjamin
    2003-11-16 | PDF
    collision dynamics model of a passenger train-to-passenger train collision has been developed to simulate the potential safety hazards and benefits associated with mixing conventional and crash energy management (CEM) cars within a consist. This paper presents a comparison of estimated injuries and fatalities for seven collision scenarios based upo ...
  • Rail vehicle cab car collision and corner post designs according to APTAS034 requirements
    Rail vehicle cab car collision and corner post designs according to APTA-S-034 requirements
    Mayville, Ronald A. ;
    Johnson, Kent N. ;
    Tyrell, David C.
    ; etc...
    2003-11-16 | PDF
    The American Public Transportation Association standard for rail passenger equipment, S-034, includes requirements for the collision and corner posts of cab cars that are consistent with new federal requirements and substantially different than what has been required in the past. This paper describes the development and evaluation of two cab car en ...
  • Full scale tank car coupler impact tests
    Full scale tank car coupler impact tests
    Lyons, Matthew L ;
    Riddell, William T ;
    Koch, Kevin D.
    2003-11-15 | PDF
    Full scale tests were performed to investigate variousaspects of tank car behavior during coupler impacts. A tank carwas equipped with 37 accelerometers and an instrumentedcoupler. Two series of full scale coupler impact tests,comprising 26 impacts, are discussed. In the first series, thetank car was empty. In the second series, the tank car was fu ...
  • Locomotive cab occupant protection
    Locomotive cab occupant protection
    Zolock, John ;
    Tyrell, David C. ;
    2003-11-15 | PDF
    The effectiveness of fitting a locomotive cab with a passive inflatable restraint system utilizing inflatable structures, and interior padding to protect the operator has been evaluated for the in-line collision scenario. It is a challenge to design a system that increases protection for the locomotive operator within the cab during accidents, whil ...
  • Documentation of deformation from passenger rail twocar impact test
    Documentation of deformation from passenger rail two-car impact test
    MacNeill, Robert A ;
    Kirkpatrick, Steven W ;
    2003-11-01 | PDF
    The Volpe Center has been conducting research into rail equipment crashworthiness in support of the Federal Railroad Administration’s (FRA) Office of Research and Development. As part of this research, full-scale crash tests of passenger cars have been performed. Subsequent detailed post-test examinations develop an improved understanding of the co ...
  • 1998 railroad employee fatalities an analytical study
    1998 railroad employee fatalities : an analytical study
    United States. Federal Railroad Administration. Office of Safety Analysis
    2003-11-01 | PDF
    "1998 Railroad Employee Fatalities: An Analytical Study," is designed to promote and enhance awareness of many unsafe behaviors and conditions that typically contribute to railroad employee fatalities. By furthering our understanding of the causes of railroad employee fatalities, this report is intended to assist railroad industry stakeholders in t ...
  • Passenger Rail Train to Train Impact Test Test Procedures Instrumentation and Data
    Passenger Rail Train to Train Impact Test: Test Procedures, Instrumentation, and Data
    Brickle, Barry
    2003-10-01 | PDF
    A full-scale passenger rail train-to-train impact test was performed on January 31, 2002, at the Transportation Technology Center, Pueblo, Colorado. The actual speed of impact, as measured by the laser speed trap, was 29.9 mph resulting in a large amount of damage to the leading cab-car, which climbed up onto the nose of the locomotive at an angle ...
  • Passenger Train Grade Crossing Impact Tests Test Procedures Instrumentation and Data
    Passenger Train Grade Crossing Impact Tests: Test Procedures, Instrumentation and Data
    Brickle, Barrie ;
    Walker, Russell ;
    2003-10-01 | PDF
    Two full-scale impact tests performed June 4 and June 7, 2002, involved single Budd Company Pioneer-type cab car impacts into a heavy steel coil on a frangible support. For the first test on June 4, a cab car was fitted with a 1990's design front end, and for the second test on June 7, with a state of the art front end. For the 1990's design front ...
  • Fatigue behavior of railcar wheel steel at ambient and elevated temperature
    Fatigue behavior of railcar wheel steel at ambient and elevated temperature
    McKeighan, Peter C ;
    McMaster, F ;
    2003-08-01 | PDF
    This report presents the results of a material property test program undertaken on a Class B railcar wheel steel. This work was performed to obtain relevant fatigue data that may be used in support of a larger effort exploring the applicability of fatigue-based acceptance criteria for passenger and transit railroad wheels. Classical stress-life (S- ...
  • Passenger Rail TraintoTrain Impact Test Volume II Summary of Occupant Protection Program
    Passenger Rail Train-to-Train Impact Test Volume II: Summary of Occupant Protection Program
    VanIngen-Dunn, Caroline
    2003-07-01 | PDF
    On January 31, 2002, a train-to-train collision test was conducted involving a cab-car-led consist with three coach cars, all of conventional design, and a trailing locomotive traveling at 30 mph into a stationary locomotive coupled with two ballasted freight cars. The objective of this test was to determine the corresponding level of occupant safe ...
  • Passenger Rail TraintoTrain Impact Test Volume I Overview and Selected Results
    Passenger Rail Train-to-Train Impact Test Volume I: Overview and Selected Results
    Tyrell, David C.
    2003-07-01 | PDF
    This report describes the results of the train-to-train impact test conducted at the Federal Railroad Administration's Transportation Technology Center in Pueblo, Colorado on January 31, 2002. In this test, a cab car-led train, initially moving at 30 mph and consisting of a cab car, three coach cars, and a trailing locomotive, collided with a stand ...
  • Railroad Safety Statistics Annual Report 2001
    Railroad Safety Statistics Annual Report 2001
    United States. Department of Transportation. Federal Railroad Administration
    2003-07-01 | Railroad Safety Statistics Annual Reports | PDF
    It is hoped that the information provided in this publication will provide insight into the most significant safety issues facing the rail industry and, in turn, lead to continued rail safety improvements. Only by continuing our understanding about how and why railroad accidents and incidents occur, can we hope to approach our goal of "Zero Toleran ...
  • Human Reliability Analysis in Support of Risk Assessment for Positive Train Control
    Human Reliability Analysis in Support of Risk Assessment for Positive Train Control
    Wreathall, J. ;
    Roth, Emilie M. ;
    Bley, D.
    ; etc...
    2003-06-01 | PDF
    This report describes an approach to evaluating the reliability of human actions that are modeled in a probabilistic risk assessment(PRA) of train control operations. This approach to human reliability analysis (HRA) has been applied in the case of a safetyevaluation of the Communications-Based Train Management (CBTM) System being tested by CSXT Tr ...
  • Estimation of Residual Stresses in Railroad Commuter Car Wheels Following Manufacture Final Report
    Estimation of Residual Stresses in Railroad Commuter Car Wheels Following Manufacture [Final Report]
    Gordon, J E ;
    Perlman, A. B. ;
    2003-06-01 | PDF
    A computer simulation of the manufacturing process of railroad car wheels is described to determine the residual stresses in the wheel following fabrication. Knowledge of, and the ability to predict, these stresses is useful in assessing the ability of wheels to perform safely under expected service conditions. A finite element analysis is performe ...
881 - 900 / 1212
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