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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 1121 - 1140 of 1162 results
  • Traintotrain rear end impact tests volume II impact test summaries
    Train-to-train rear end impact tests - volume II - impact test summaries
    Anderson, R. L. ;
    Cramer, P. L.
    1977-03-31 | 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, force deflection characteristics, vertical center ...
  • Maintaining Alertness in Railroad Locomotive Crews
    Maintaining Alertness in Railroad Locomotive Crews
    Devoe, D B ;
    Abernethy, C N
    1977-03-01 | PDF
    The problem of assuring alertness in railroad locomotive crews is defined. Principles for maintaining alertness are derived from the experimental literature on vigilance and several unresolved questions are explored through three experiments. The findings are summarized in a set of criteria for evaluating alerting devices and techniques, and device ...
  • Potential means of cost reduction in grade crossing automatic gate systems volume I overview and low cost railroadhighway grade crossing gate systems
    Potential means of cost reduction in grade crossing automatic gate systems. volume I : overview and low cost railroad/highway grade crossing gate systems
    St. Amant, Andrew
    1977-02-28 | PDF
    This report, Volume I of a two-volume study, examines the potential for reduction of the cost of installing and maintaining automatic gates at railroad-highway grade crossings. It comprises a general overview; a review of current practices, equipment, and standards; a consideration of modification of existing specifications to permit use of alterna ...
  • Potential means of cost reduction in grade crossing automatic gate systems volume II improved gate arm concepts for railroadhighway grade crossings gate systems
    Potential means of cost reduction in grade crossing automatic gate systems. volume II : improved gate arm concepts for railroad/highway grade crossings gate systems
    Duttera, James ;
    Friedland, Martin
    1977-02-28 | PDF
    This report, Volume II of a two-volume study, examines the potential for reduction of the cost of installing and maintaining automatic gates at railroad-highway grade crossings. It includes a review of current practices, equipment, and standards; consideration of modification of existing specifications to permit use of alternative technologies; gen ...
  • Aerodynamic Forces on Freight Trains Volume I Wind Tunnel Tests of Containers and Trailers on Flatcars
    Aerodynamic Forces on Freight Trains: Volume I. Wind Tunnel Tests of Containers and Trailers on Flatcars
    Hammitt, Andrew G.
    1976-12-01 | PDF
    The aerodynamic forces on trailers and containers on flatcars have been measured in wind tunnel tests. The forces were measured on the central car of a five-car train consisting of a locomotive, three flatcars with various loadings and a boxcar. Tests were made over a range of yaw angles and with different loadings. Standard trailers, containers an ...
  • Locomotive Cab Design Development Volume 1 Analysis of Locomotive Cab Environment Development of Cab Design Alternatives
    Locomotive Cab Design Development. Volume 1: Analysis of Locomotive Cab Environment & Development of Cab Design Alternatives
    Robinson, J ;
    Piccione, D.
    1976-10-01 | PDF
    This report presents an analysis of the line haul freight engineer's working and living environment, the resultant locomotive cab design and design alternatives. The analysis is based on a delineation of functional requirements found in current line haul operations together with those additional requirements which could arise during the next 10-15 ...
  • Standby power for railroadhighway grade crossing warning systems
    Standby power for railroad-highway grade crossing warning systems
    Holmstrom, F. Ross
    1976-09-30 | PDF
    The requirements for standby power at railroad-highway grade crossings, as established by the states, the Association of American Railroads, and the individual railroads, are described. Standard means of satisfying these requirements, using 115 vac primary power and storage batteries for standby, are compared with a number of new techniques, now pa ...
  • Models of Railroad PassengerCar Requirements in the Northeast Corridor Volume I Formulation and Results
    Models of Railroad Passenger-Car Requirements in the Northeast Corridor: Volume I. Formulation and Results
    Fourer, Robert
    1976-09-30 | PDF
    Models and techniques for determining passenger-car requirements in railroad service were developed and applied by a research project of which this is the final report. The report is published in two volumes. This volume considers a general problem of determining optimal passenger-car allocations given a fixed schedule and predetermined demands. Re ...
  • Models of Railroad PassengerCar Requirements in the Northeast Corridor Volume II Users Guide
    Models of Railroad Passenger-Car Requirements in the Northeast Corridor: Volume II: User's Guide
    Fourer, Robert
    1976-09-30 | PDF
    Models and techniques for determining passenger-car requirements in railroad service were developed and applied by a research project of which this is the final report. The report is published in two volumes. The solution and analysis of the Northeast Corridor models required the creation of a number of computer programs of several kinds. These pro ...
  • Locomotive cab design development Volume 5 performance evaluation tests
    Locomotive cab design development. Volume 5 : performance evaluation tests
    Robinson, J
    1976-09-01 | PDF
    This document reports on a preiiminary evaluation o f the BumanFactors design proposed for a line haul freight locomotivecab . The program was conducted using a full scale hard mock-upo f the proposed design and the evaluation was provided by engineersfrom the former Penn Central Transportation Company . During theprogram the techniques utilized we ...
  • Aerodynamic Forces on Freight Trains Volume III Correlation Report Full Scale Tests of Trailers on Flatcars and Comparison with Wind Tunnel Results
    Aerodynamic Forces on Freight Trains — Volume III Correlation Report — Full Scale Tests of Trailers on Flatcars and Comparison with Wind Tunnel Results
    Hammitt, Andrew G.
    1976-09-01 | PDF
    Full scale measurements of the aerodynamic forces of trailers on flatcars have been per­ formed at the Transportation Test Center in Pueblo, Colorado. These measurements were performed by mounting the trailers on the flatcar through force balances. In the two configu­rations that were tested the flatcar in front of the test car was loaded and unloa ...
  • System requirements and benefits of a terminal information system for the Kansas City railroads
    System requirements and benefits of a terminal information system for the Kansas City railroads
    Reymond, Robert D. ;
    Troup, Kenneth F.
    1976-08-31 | PDF
    The Kansas City Terminal Railway Company proposed that the Federal Railroad Administration assist in funding the implementation of a Terminal Information and Message Exchange system (TIME), designed to enhance the operations of the twelve railroads in Kansas City. The purpose of this system is to automate the flow of information about cars being in ...
  • Northeast corridor passenger transportation data study
    Northeast corridor passenger transportation data study
    Aerospace Corporation
    1976-08-31 | PDF
    Fourteen measures of performance are recommended for use in Northeast Corridor rail system evaluation and multimodal comparisons. These include performance measures in the categories of system configuration (e.g., daily available-seat miles by vehicle and segment), system performance (e.g., load factor by vehicle and segment) and system economics ( ...
  • Ultrasonic detection of plate cracks in railway wheels
    Ultrasonic detection of plate cracks in railway wheels
    Becker, F.L.
    1976-07-31 | PDF
    The results of experimental efforts established the feasibility of the detection of railway wheel plate cracks by an ultrasonic pulse echo testing technique from the tread surface. Feasibility and test sensitivities were established using artificial notches in a flat plate test reference and in full-size wheels. Concepts for manual inspection of st ...
  • The effect of imperfections on the vertical buckling of railroad tracks
    The effect of imperfections on the vertical buckling of railroad tracks
    El-Aini, Yehia M.
    1976-06-30 | PDF
    This report deals with an analytical prediction of the effect of geometric imperfections on the post-buckling characteristics of railroad tracks. The analysis is restricted to the case of vertical track buckling due to constrained thermal expansion in which the track is assumed to lift itself up over a finite span. The imperfections are categorized ...
  • Demand Projections for the Northeast Corridor Financial Analysis
    Demand Projections for the Northeast Corridor: Financial Analysis
    Prokopy, J. C. ;
    Ruina, D. E.
    1976-06-30 | PDF
    This report describes the development and results of intercity travel demand projections by city-pair prepared for the Northeast Corridor financial analysis. In addition, associated analyses of projected passenger volumes by station and of selected alternative station sites are included. The report first presents the methodology used both to develo ...
  • Mechanics of Train Collision
    Mechanics of Train Collision
    Tong, Pin
    1976-04-30 | PDF
    A simple and a more detailed mathematical model for the simulation of train collisions are presented. The study presents considerable insight as to the causes and consequences of train motions on impact. Comparison of model predictions with two full scale train-to-train impact tests shows good correlation. Methods for controlling train motion and k ...
  • Recommendations to the Federal Railroad Administration concerning critical factors in railroad employee medical standards
    Recommendations to the Federal Railroad Administration concerning critical factors in railroad employee medical standards.
    Abernethy, Charles N., III
    1976-03-01 | PDF
    This report discusses critical factors which should be considered in the preparation of medical standards for locomotive engineers or other individuals who operate moving equipment. In many instances, a guideline is not proposed because case by case consideration is required. In other instances, a guideline can be proposed because the implications ...
  • Procedures for Analyzing the Economic Costs of Railroad Roadway for Pricing Purposes Volume 1 Procedures
    Procedures for Analyzing the Economic Costs of Railroad Roadway for Pricing Purposes. Volume 1. Procedures
    Danzig, Jerry C ;
    Rugg, Jerry A
    1976-01-01 | PDF
    The primary objectives of the study are to develop procedures for determining the roadway (fixed plant) costs associated with specific railroad services (routes, equipment, service levels) for use in the pricing of such services, and to demonstrate how these procedures can be implemented as an element of a railroad costing system. The costing proce ...
  • Lightning and its effects on railroad signal circuits
    Lightning and its effects on railroad signal circuits
    Holmstrom, F. Ross
    1975-12-31 | PDF
    This study discusses the occurrence of lightning, its effects on railroad signal equipment, and protection of such equipment from lightning damage, with special attention to known protective techniques which are employed in a variety of situations in the power, communications, and railroad industries. A brief review is offered of the causes of ligh ...
1121 - 1140 / 1162