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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 761 - 780 of 1162 results
  • Human Factors Guidance for Intelligent Transportation Systems at the HighwayRail Intersection
    Human Factors Guidance for Intelligent Transportation Systems at the Highway-Rail Intersection
    Jenness, James W. ;
    Lerner, Neil D.
    2006-12-01 | PDF
    This document provides guidance recommendations and supporting material to assist designers and implementers of intelligent transportation system (ITS) applications related to highway-rail intersections (HRI). The guidance focuses specifically on roadway user human factors requirements associated with ITS as applied to HRIs. The guidance is intende ...
  • Engineering analyses for railroad tank car head puncture resistance
    Engineering analyses for railroad tank car head puncture resistance
    Jeong, D.Y. ;
    Tang, Y.H.
    2006-11-06 | PDF
    This paper describes engineering analyses to estimate theforces, deformations, and puncture resistance of railroad tankcars. Different approaches to examine puncture of the tank carhead are described. One approach is semi-empirical equationsto estimate the velocity at which puncture is expected to occur.Other approaches apply elastic-plastic finite ...
  • Dynamic simulation of train derailments
    Dynamic simulation of train derailments
    Paetsch, Christopher ;
    Perlman, A.B.
    2006-11-05 | PDF
    This paper describes a planar rigid-body model to examine the gross motions of rail cars in a train derailment. The model is implemented using a commercial software package called ADAMS (Automatic Dynamic Analysis of Mechanical Systems). The results of the ADAMS model are compared with results from other engineering models that were developed from ...
  • A collision dynamics model of a multilevel train
    A collision dynamics model of a multi-level train
    Priante, Michelle ;
    Tyrell, David
    2006-11-05 | PDF
    In train collisions, multi-level rail passenger vehicles can deform in modes that are different from the behavior of single level cars. The deformation in single level cars usually occurs at the front end during a collision. In one particular incident, a cab car buckled laterally near the back end of the car. The buckling of the car caused both lat ...
  • Residual stresses in passenger car wheels
    Residual stresses in passenger car wheels
    Liu, Shuangqin ;
    Perlman, Benjamin
    2006-11-05 | PDF
    The purpose of this paper is to present the extension of previous studies aimed at understanding the residual stress distribution in as-manufactured railroad wheels. In order to address loading conditions which are not axially symmetric, a manufacturing simulation has been conducted with a 3-dimensional model. Results from the 2- and 3-dimensional ...
  • Development of a standard for new passenger car wheel designs
    Development of a standard for new passenger car wheel designs
    Talamini, Brandon ;
    Perlman, Benjamin
    2006-11-05 | PDF
    The American Public Transportation Association (APTA) is seeking to develop specifications to ensure that wheels used in transit and commuter applications perform safely under the service conditions to which they are exposed. To this end, a design standard has been conceived to ensure that new wheel designs proposed for such applications are not su ...
  • San Joaquin California HighSpeed Rail Grade Crossing Data Acquisition Characteristics Methodology and Risk Assessment
    San Joaquin, California, High-Speed Rail Grade Crossing Data Acquisition Characteristics, Methodology, and Risk Assessment
    Choros, John ;
    Hellman, Adrian
    2006-11-01 | PDF
    This report discusses data acquisition and analysis for grade crossing risk analysis at the proposed San Joaquin High-Speed Rail Corridor in San Joaquin, California, and documents the data acquisition and analysis methodologies used to collect and analyze grade crossing data and evaluate the effects of each method in the overall risk calculations f ...
  • A Pilot Examination of a Joint Railroad ManagementLabor Approach to Root Cause Analysis of Accidents Incidents and Close Calls in a Diesel and Car Repair Shop Environment
    A Pilot Examination of a Joint Railroad Management-Labor Approach to Root Cause Analysis of Accidents, Incidents, and Close Calls in a Diesel and Car Repair Shop Environment
    Reinach, S. ;
    Viale, Alex
    2006-11-01 | PDF
    This report presents findings from a 1-year pilot study investigating the feasibility and practicality of a joint railroad management-labor approach to root cause analysis (RCA) of accidents, incidents, and close calls in a diesel and car repair shop environment. The primary objective of the study was to evaluate the value and utility of a joint ra ...
  • Validation and Calibration of a Fatigue Assessment Tool for Railroad Work Schedules Summary Report
    Validation and Calibration of a Fatigue Assessment Tool for Railroad Work Schedules, Summary Report
    Hursh, Steven R. ;
    Raslear, Thomas G.
    2006-10-31 | PDF
    This report summarizes the results of a project to demonstrate a method to validate and calibrate a fatigue model. The project examined 30-day work histories of locomotive crews prior to 400 human factors accidents and 1000 nonhuman factors accidents. A biomathematical fatigue model estimated crew effectiveness (the inverse of fatigue) based entire ...
  • Work Schedules and Sleep Patterns of Railroad Signalmen Final Report
    Work Schedules and Sleep Patterns of Railroad Signalmen [Final Report]
    Gertler, Judith ;
    Viale, Alex
    2006-10-01 | PDF
    This report presents the results of a research study designed to characterize the work schedules and sleep patterns of U.S. railroad signalmen and to examine the relationship between these schedules and level of alertness of the individuals working the schedules. The study methodology was a survey of a random sample of currently working U.S. railro ...
  • EMF Monitoring on Amtraks Northeast Corridor PostElectrification Measurement and Analysis
    EMF Monitoring on Amtrak's Northeast Corridor : Post-Electrification Measurement and Analysis
    Fugate, David W. ;
    Jacobs, William L.
    2006-10-01 | PDF
    This survey of electromagnetic fields (EMF) and radiation (EMR) due to the electrification infrastructure and operations of Amtrak Acela trains on the Northeast Corridor from New Haven, CT, to Boston, MA, was performed by Electric Research & Management (ERM) with Amtrak cooperation. The Federal Railroad Administration (FRA) and Volpe National Trans ...
  • An Integrated Track Stability Assessment and Monitoring System Using SiteSpecific GeoTechnicalSpatial Parameters and Remote Sensing Technologies Research Results
    An Integrated Track Stability Assessment and Monitoring System Using Site-Specific Geo-Technical/Spatial Parameters and Remote Sensing Technologies, Research Results
    Fateh, Mahmood ;
    Jones, Michael
    2006-10-01 | PDF
    The Federal Railroad Administration’s (FRA) Office of Research and Development sponsored a project to develop a mobile rail track surface and sub-surface surveying system capable of collecting data from a variety of remote sensing instrumentation and integrate this data with other site-specific data to assist in monitoring rail track behavior over ...
  • Fatigue crack growth equations for TC128B tank car steel
    Fatigue crack growth equations for TC-128B tank car steel
    Feiger, James H ;
    McKeighan, Peter C
    2006-10-01 | PDF
    In an effort to develop relevant data for use in applying damage tolerance analysis concepts to railroad tank cars, the fatigue crack growth (FCG) behavior of TC-128B tank car steel was investigated by SwRI in a previous test program conducted for the Volpe Center [1]. Fatigue crack growth rate data (da/dN vs ΔK) for TC-128B tank car steel were obt ...
  • Development of gage widening projection parameter for the deployable gage restraint measurement system
    Development of gage widening projection parameter for the deployable gage restraint measurement system
    Sundaram, Narayan ;
    Sussman, Theodore
    2006-10-01 | PDF
    Recent gage restraint measurement system (GRMS) developments include the redesign of GRMS vehicles to conduct testing from a deployable axle instead of using freight truck mounted axle and GRMS on hi-rail vehicles. This new test configuration results in boundary condition changes in the applied loads and split axle location; both of which influence ...
  • Alternative End Frame Design of Passenger Rail Cab Car
    Alternative End Frame Design of Passenger Rail Cab Car
    Martinez, Eloy
    2006-09-01 | PDF
    At the request of the American Public Transportation Association (APTA), the Office of Research and Development of the Federal Railroad Administration (FRA) conducted a series of full-scale grade crossing tests. The purpose of the tests was to demonstrate the enhanced performance of cab car end frame designs promulgated in Federal requirements and ...
  • Canadian Pacific Railway mechanical services 5Alive safety program shows promise in reducing injuries
    Canadian Pacific Railway mechanical services' 5-Alive safety program shows promise in reducing injuries.
    Coplen, Michael K. ;
    Lee, Mary T.
    2006-09-01 | PDF
    The Federal Railroad Administration (FRA) Human Factors Research and Development (R&D) Program is sponsoring an Alternative Safety Measures Program to explore alternative methods for evaluating whether safety programs improve safety outcomes and the underlying safety culture, and to conduct implementation and impact evaluations of promising safety ...
  • Canadian Pacific Railway Investigation of SafetyRelated Occurrences Protocol considered helpful by both labor and management
    Canadian Pacific Railway Investigation of Safety-Related Occurrences Protocol considered helpful by both labor and management.
    Coplen, Michael K. ;
    Lee, Mary T.
    2006-09-01 | PDF
    The Federal Railroad Administration (FRA) Human Factors Research and Development (R&D) Program sponsored an Alternative Safety Measures Program designed to explore alternative methods for evaluating whether safety programs improve safety outcomes and the underlying safety culture, and to conduct implementation and impact evaluations of promising sa ...
  • Deformability and Energy Absorption for Optimized End Frame Designs for Passenger Rail Cars
    Deformability and Energy Absorption for Optimized End Frame Designs for Passenger Rail Cars
    Martinez, Eloy
    2006-09-01 | PDF
    At the request of the American Public Transportation Association (APTA), the Office of Research and Development of the Federal Railroad Administration (FRA) sponsored a research initiative to clarify the definition of acceptable large deformations for end frame structural members. This request was prompted by discussions between two operating autho ...
  • A Higher Speed Turnout Research Results
    A Higher Speed Turnout: Research Results
    Plotkin, David
    2006-08-01 | PDF
    Travel through the diverging route of a turnout can produce high lateral forces and accelerations, particularly in the areas of the switch point and frog. These higher lateral forces and accelerations require slower operating speeds and have adverse effects on ride quality and component life. This study was aimed at finding a low-cost means to redu ...
  • A Pilot Examination of a Joint Railroad ManagementLabor Approach to Root Cause Analysis of Accidents Incidents and Close Calls in a Diesel and Car Repair Shop Environment Research Results
    A Pilot Examination of a Joint Railroad Management-Labor Approach to Root Cause Analysis of Accidents, Incidents, and Close Calls in a Diesel and Car Repair Shop Environment [Research Results]
    Raslear, Thomas
    2006-08-01 | PDF
    A 1-year (yr) pilot study investigated the feasibility and practicality of a joint railroad management-labor approach to root cause analysis (RCA) of accidents, incidents, and close calls in a diesel and car repair shop environment. The primary objective of the study was to evaluate the adequacy and utility of a joint railroad management-labor RCA ...
761 - 780 / 1162