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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 821 - 840 of 1163 results
  • The influence of train type car weight and train length on passenger train crashworthiness
    The influence of train type, car weight, and train length on passenger train crashworthiness
    Priante, Michelle ;
    Tyrell, David
    2005-03-16
    Crash energy management (CEM) is a type of equipmentdesign that is intended to protect occupant space during acollision. Structures at the front and back of each car act ascrumple zones that absorb the collision energy. CEM isintended to distribute the damage from a collision throughout aconsist to unoccupied areas. This paper describes how factors ...
  • Development of Objective Track Quality Indices Research Results
    Development of Objective Track Quality Indices: Research Results
    El-Sibaie, Magdy ;
    Lee, Sun
    2005-03-01 | PDF
    A main goal of the project is to use the new TQIs to quantitatively assess track quality in relation to the Federal Track Safety Standards (FTSS). The newly developed TQIs should also be of wider benefit to the general railroad industry. The preferred track quality indices should be a set of non-biased and quantitative indicators that can be applie ...
  • 2002 railroad employee fatalities an analytical study
    2002 railroad employee fatalities : an analytical study
    United States. Federal Railroad Administration. Office of Safety Analysis
    2005-02-01 | PDF
    “2002 Railroad Employee Fatalities: An Analytical Study,” which is designed to promote andenhance awareness of many unsafe behaviors and conditions that typically contribute torailroad employee fatalities. By furthering our understanding of the causes of railroademployee fatalities, this report is intended to assist railroad industry stakeholders i ...
  • Human Factors Phase III Effects of Train Control Technology on Operator Performance
    Human Factors Phase III: Effects of Train Control Technology on Operator Performance
    Lanzilotta, E. ;
    Sheridan, T.
    2005-01-01 | PDF
    This report describes a study evaluating the effects of train control technology on locomotive engineer performance. Several types of train control systems were evaluated: partial automation (cruise control and programmed stop) and full automation were compared to manual train control. The study evaluated how these systems affected human performanc ...
  • Human Factors Phase IV Risk Analysis Tool for New Train Control Technology
    Human Factors Phase IV: Risk Analysis Tool for New Train Control Technology
    Lanzilotta, E. ;
    Sheridan, T.
    2005-01-01 | PDF
    This report covers the theoretical development of the safety state model for railroad operations. Using data from a train control technology experiment, experimental application of the model is demonstrated. A stochastic model of system behavior is developed which is used to estimate the dynamic risk probability in a human-machine system. This mode ...
  • Twocar impact test of crash energy management passenger rail cars analysis of occupant protection measurements
    Two-car impact test of crash energy management passenger rail cars : analysis of occupant protection measurements
    Severson, Kristine J. ;
    Parent, Daniel
    2004-11-13 | PDF
    As a part of ongoing passenger rail equipment safety research, a full-scale impact test of two cars with energy absorbing end structures was carried out on February 26, 2004. In this test, two coupled cars impacted a rigid barrier at 29 mph. Similar to previous full-scale tests in the series [1,2,3], anthropomorphic test devices (or ATDs) were incl ...
  • Finite element estimation of the residual stresses in rollerstraightened rail
    Finite element estimation of the residual stresses in roller-straightened rail
    Talamini, Brandon ;
    Gordon, Jeff
    2004-11-13 | PDF
    The purpose of this paper is to develop models to accurately predictthe residual stresses due to the roller straightening of railroad rails.Several aspects of residual stress creation in rail due to rollerstraightening are addressed. The effect of the characteristics of theloads applied by the roller-straightener on the stress profile isexamined. I ...
  • Development of crash energy management designs for existing passenger rail vehicles
    Development of crash energy management designs for existing passenger rail vehicles
    Martinez, Eloy ;
    Tyrell, David
    2004-11-13 | PDF
    As part of the passenger equipment crashworthiness research,sponsored by the Federal Railroad Administration and supported bythe Volpe Center, passenger coach and cab cars have been tested in inlinecollision conditions. The purpose of these tests was to establishbaseline levels of crashworthiness performance for the conventionalequipment and demons ...
  • Supporting Railroad Roadway Work Communications with a Wireless Handheld Computer Volume 2 Impact on Dispatcher Performance
    Supporting Railroad Roadway Work Communications with a Wireless Handheld Computer: Volume 2: Impact on Dispatcher Performance
    Masquelier, T. ;
    Sheridan, T.
    2004-10-01 | PDF
    This report is the second in a series documenting the development and evaluation of a software application to facilitate communications for railroad roadway workers. The roadway worker can perform two types of communication related tasks with the application: request information about train status and territory without assistance from the dispatche ...
  • Impact of data link technology on railroad dispatching operations
    Impact of data link technology on railroad dispatching operations
    Malsch, N. ;
    Sheridan, T.
    2004-10-01 | PDF
    This study examined data link communication as an alternative channel to voice radio for railroad dispatchers. The goal was to compare how data link affected performance compared to voice radio only communications on measures related to safety, productivity, communication efficiency, and situation awareness. A data link system with two addressing o ...
  • Supporting railroad roadway work communications with a wireless handheld computer Volume 1 usability for the roadway worker
    Supporting railroad roadway work communications with a wireless handheld computer. Volume 1 : usability for the roadway worker
    Oriol, N ;
    Sheridan, T.
    2004-10-01 | PDF
    Communications in current railroad operations rely heavily on voice communications. Radio congestion impairs roadway workers’ ability to communicate effectively with dispatchers at the Central Traffic Control Center and has adverse consequences for the safety and efficiency of railroad operations. A prototype communications device was developed for ...
  • Effects of wear and service conditions on residual stresses in commuter car wheels
    Effects of wear and service conditions on residual stresses in commuter car wheels
    Gordon, Jeff ;
    Perlman, A. Benjamin
    2004-09-01 | PDF
    This paper illustrates application of the shakedown residual stress estimation technique toassess the effects of service conditions on wheel residual stresses. The examples described provide thetechnical details on how the technique is practically applied and typical results. Operational conditionsrepresentative of a commuter railroad have been use ...
  • Optimizing Staffing levels and Schedules for Railroad Dispatching Centers
    Optimizing Staffing levels and Schedules for Railroad Dispatching Centers
    Gertler, J ;
    Nash, D.
    2004-09-01 | PDF
    This report presents the results of a study to explore approaches to establishing staffing levels and schedules for railroad dispatchers. Thework was conducted as follow-up to a prior study that found fatigue among dispatchers, particularly those who worked permanent nightshifts. The present study had four objectives: 1) document current industry p ...
  • Crashworthiness Analysis of the Placentia CA Rail Collision
    Crashworthiness Analysis of the Placentia, CA Rail Collision
    Parent, Daniel ;
    Tyrell, D.
    2004-07-14 | PDF
    The Volpe Center is supporting the Federal Railroad Administration in performing rail passenger equipment crashworthiness research. The overall objective of this research is to develop strategies for improving structural crashworthiness and occupant protection. A field study of passenger train accidents is being conducted to investigate the causal ...
  • Benefitcost evaluation of a highwayrailroad intermodal control system ICS
    Benefit-cost evaluation of a highway-railroad intermodal control system (ICS)
    Lee, Douglass B. ;
    Gay, Kevin
    2004-06-01 | PDF
    Improved train location information and vehicle detection combined with grade crossing controls, traveler information, and traffic management can improve safety and reduce delay for both passengers and vehicles. In addition, the possibility of pre-empting the crossing for emergency vehicles, when it is safe to do so, may save lives and hasten medic ...
  • Midwest Regional Rail Initiative Project Notebook
    Midwest Regional Rail Initiative Project Notebook
    Transportation Economics and Management Systems, Inc.  ...
    2004-06-01 | PDF
    The Midwest Regional Rail Initiative was an effort in the early 2000’s to plan for and develop an expanded and improved passenger rail system in the Midwestern United States. Amtrak, Federal Railroad Administration (FRA), and the transportation agencies of nine Midwest states all collaborated on its development. FRA contributed to the cost, in part ...
    Supporting Files
  • Proceedings of the human factors workshop improving railroad safety through understanding close calls
    Proceedings of the human factors workshop : improving railroad safety through understanding close calls.
    Saks, Jane ;
    Multer, Jordan
    2004-05-01 | PDF
    On April 23 and 24, 2003, the Federal Railroad Administration’s Office of Research and Development held a Human Factors Workshop: “Improving Railroad Safety Through Understanding Close Calls in Baltimore, Maryland.” The purpose of the workshop was to educate the railroad industry on the benefits of understanding close call events and the challenges ...
  • Analysis of colliding vehicle interactions for the passenger rail traintotrain impact test
    Analysis of colliding vehicle interactions for the passenger rail train-to-train impact test
    Stringfellow, Richard ;
    Rancatore, Robert
    2004-04-06 | PDF
    A full-scale train-to-train impact test was performed inwhich a cab car-led passenger train traveling at 30 mph collidedwith a standing locomotive-led train. During the test, the leadcab car overrode the cab of the standing locomotive, sustainingapproximately 20 feet of crush, while the cab of the locomotiveremained essentially intact.In this study ...
  • Fullscale twocar impact test comparison of measured and model results
    Full-scale two-car impact test: comparison of measured and model results
    Rancatore, Robert ;
    Mayville, Ronald
    2004-04-06 | PDF
    The Volpe National Transportation Systems Center isconducting research into the crashworthiness of rail vehicles insupport of the Federal Railroad Administration's Office ofResearch and Development. The approach taken has focused onthe review of accidents, development of analytical tools andperforming full-scale testing. A series of inline full-sca ...
  • Quantification of the Business Benefits of Positive Train Control
    Quantification of the Business Benefits of Positive Train Control
    ZETA-TECH Associates, Inc.
    2004-03-15 | PDF
    The purpose of this analysis is to quantify the “business benefits” of Positive Train Control (PTC for the Class I freight railroad industry1. Positive Train Control is a concept, rather than a single technology or system. It can include many different capabilities, covering a range of railroad functions. The three components of PTC are the on-boar ...
821 - 840 / 1163