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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 1081 - 1100 of 1162 results
  • Truck Design Optimization Project Phase II Final Report Review
    Truck Design Optimization Project Phase II: Final Report Review
    Wyle Laboratories, Inc.
    1981-04-02 | PDF
    The overall objectives of the Truck Design Optimization (TDOP) Phase II are to provide technological and economic bases for assessing freight car truck performance and design, and to generate uniform testing and performance guidelines for truck/car body systems. This report summarizes the approaches employed in this study which included the develop ...
  • Railroad Classification Yard Technology Manual Volume I Yard Design Methods
    Railroad Classification Yard Technology Manual. Volume I : Yard Design Methods
    Wong, P. J. ;
    Sakasita, M.
    1981-02-01 | PDF
    This volume documents the procedures and methods associated with the design of railroad classification yards. Subjects include: site location, economic analysis, yard capacity analysis, design of flat yards, overall configuration of hump yards, hump yard track and switch layout, hump profile design, and hump trim-end design.
  • Resistance of a Freight Train to Forward Motion Volume III Economic Analysis and Correlation of Predictions with Field Data
    Resistance of a Freight Train to Forward Motion - Volume III, Economic Analysis and Correlation of Predictions with Field Data
    Muhlenberg, J D
    1981-02-01 | PDF
    This final report is a supplement to two earlier FRA reports on train resistance and its impact upon fuel consumption. The portion of this effort reported herein was partly directed toward detailed correlation of predictions of fuel consumption from simulated runs with actual field measurement. In addition, computer simulations were made in an effo ...
  • Resistance of a Freight Train to Forward Motion Volume IV Users Manual for Freight Train Fuel Consumption Program
    Resistance of a Freight Train to Forward Motion – Volume IV, User’s Manual for Freight Train Fuel Consumption Program
    Muhlenberg, J D
    1981-02-01 | PDF
    This document provides information concerning a computer program devised to predict fuel consumption of a freight train operated over a track with known characteristics. The information is of value to both the user who wants merely to utilize the capabilities of the program and the programmers who need to understand its inner workings. The program ...
  • Engineering Data Characterizing the Fleet of US Railway Rolling Stock Volume 1 Users Guide
    Engineering Data Characterizing the Fleet of U.S. Railway Rolling Stock: Volume 1: User's Guide
    Dimasi, Frank P.
    1981-01-01 | PDF
    This report contains engineering parameter descriptions of major and distinctive freight vehicle configurations covering approximately 96% of the U.S. freight vehicle fleet. This data has been developed primarily for use in analytical simulation modeling of rail vehicles to analyses of vehicle/track dynamic interaction dynamics. To characterize loa ...
  • Truck Design Optimization Project Phase II Performance Characterization for Type I Freight Car Trucks
    Truck Design Optimization Project Phase II: Performance Characterization for Type I Freight Car Trucks
    RamaChandran, P V ;
    ElMadany, M M
    1981-01-01 | PDF
    TDOP/Phase II is part of a series of studies being conducted by the FRA to define the engineering options available to the railroad industry to improve the efficiency and productivity of rail freight operations. As part of this effort, experimental and analytic studies have been conducted to define the performance capabilities of the current freigh ...
  • Railroad Classification Yard Technology Assessment of Car Speed Control Systems
    Railroad Classification Yard Technology: Assessment of Car Speed Control Systems
    Kiang, R.L. ;
    Ploeger, D.W.
    1980-12-01 | PDF
    The scope of this study has encompassed an evaluation of fourteen yard speed control devices, an identification of four generic speed control systems, a qualitative assessment of the four systems, and finally a quantitative analysis of three hypothetic yards each employing a system that is considered promising. These three systems are (1) the advan ...
  • Issues and Dimensions of Freight Car Size A Compendium
    Issues and Dimensions of Freight Car Size: A Compendium
    Nayak, P.R. ;
    Palmer, D.W.
    1980-10-01 | PDF
    An investigation is made into the effects of the size, weight, and length of freight cars on the safety and efficiency of U.S. rail transportation. A review is made of the historical and present population and usage of the U.S. freight car fleet. Distinct trends toward the purchase of larger, heavier cars and the subsequent effect on the fleet are ...
  • Truck Design Optimization Project Phase II Interim Report
    Truck Design Optimization Project Phase II: Interim Report
    Sheldon, G ;
    Bakken, G
    1980-06-01 | PDF
    The overall objective of the TDOP Phase II project is to characterize the behavior of existing trucks (defined as Type I trucks) and to generate performance and test specifications for new truck designs (referred to as Type II trucks). The purpose of this document is to report on the progress to date of TDOP Phase II. The report summarizes the meth ...
  • Tank Car Head Puncture Mechanisms
    Tank Car Head Puncture Mechanisms
    Szabo, B. A. ;
    Diboll, W. B.
    1980-04-01 | PDF
    In a number of railroad accidents the shell heads of hazardous material tank cars have been punctured. This report is concerned with the description and analysis of head puncture mechanisms. Three classification yard accidents and one main line accident were studied in detail, train-to-train collision tests were analyzed and the results of impact e ...
  • Statistical Representations of Track Geometry Volume I Text
    Statistical Representations of Track Geometry : Volume I, Text.
    Corbin, J. C.
    1980-03-31 | PDF
    Mathematical representations of railroad track geometry variations are derived from time series analyses of track measurements. Since the majority of track is free of anomalies (turnouts, crossings, bridges, etc.), representation of anomaly-free track is first considered. Anomalies are then represented by using a combination of processes used to de ...
  • Statistical Representations of Track Geometry Volume II Appendices
    Statistical Representations of Track Geometry : Volume II, Appendices.
    Corbin, J. C.
    1980-03-31 | PDF
    This volume contains some of the more detailed data and analyses to support the results and conclusions reached in Volume I of this report. It is divided into appendixes lettered A through J. Appendix A defines a procedure for evaluating the statistical parameters from field-collected track-geometry data. Appendixes B and C contain track-geometry d ...
  • Truck Design Optimization Project Phase II Analysis Plan
    Truck Design Optimization Project Phase II: Analysis Plan
    Johnson, Larry L ;
    Gilchrist, A. J.
    1980-03-01 | PDF
    The purpose of this document is to set forth the Analysis Plan which will be followed in the Truck Design Optimization Project (TDOP) Phase II. The Analysis Plan defines the means by which Type I (standard) and Type II (premium) freight car trucks will be characterized and compared. The specific objectives of the analysis task are: (1) to define th ...
  • Freight Car Rollability Study Task 1 Review and Requirements
    Freight Car Rollability Study: Task 1— Review and Requirements
    Petracek, S. J. ;
    Savage, N.P.
    1980-02-01 | PDF
    SRI International has begun an exploratory study of freight car rolling resistance in railroad classification yards. This study is sponsored by the Federal Railroad Administration's (FRA) Office of Research and Development and the Transportation Systems Center (TSC).
  • Improving Railroad Technology A Directory of Research and Development Projects of the Federal Railroad Administration Fiscal Year 1980
    Improving Railroad Technology: A Directory of Research and Development Projects of the Federal Railroad Administration: Fiscal Year 1980
    United States. Department of Transportation. Federal Railroad Administration. Office of Research and Development
    1980-01-01 | PDF
    The FRA's Research and Development program has as its goals near-term improvements in products and processes which would enhance safety, improvements in the economic viability and efficiency of the Nation's railroad operations, and reduction of adverse environmental effects of railroad operations. The Office of Research and Development has responsi ...
  • Results and Analysis of the Switchyard Impact Tests
    Results and Analysis of the Switchyard Impact Tests
    Orringer, O. ;
    Tong, Ping
    1980-01-01 | PDF
    This report presents the results and analysis of series 3 through 7 and series 10 of the FRA/RPI/AAR Switchyard Impact Tests. The test results and analysis are used to evaluate the head shield and the shelf-E coupler as protective devices for hazardous-materials tank cars.
  • Prevalence Costs and Handling of Drinking Problems on Seven Railroads
    Prevalence, Costs, and Handling of Drinking Problems on Seven Railroads
    Mannello, T. A. ;
    Seaman, F. J.
    1979-12-01 | PDF
    This report presents and discusses the results of Project REAP (Railroad Employee Assistance Project), an in-depth study of the size of the alcohol abuse problem in the railroad industry, the effects of the problem on companies and employees, and the effectiveness of methods currently used to combat the problem. The study was funded by the Federal ...
  • RailHighway Crossing Hazard Prediction Research Results
    Rail-Highway Crossing Hazard Prediction: Research Results
    Mengert, Peter
    1979-12-01 | PDF
    This document presents techniques for constructing and evaluating railroad grade crossing hazard indexes. Hazard indexes are objective formulas for comparing or ranking crossings according to relative hazard or for calculating absolute hazard index (conditional expected frequency of grade crossing accidents) on an individual crossing basis. Relativ ...
  • Truck Design Optimization Project Phase II Friction Snubber Force Measurement System FSFMS Field Test Report
    Truck Design Optimization Project Phase II. Friction Snubber Force Measurement System (FSFMS) Field Test Report
    Gibson, David
    1979-10-01 | PDF
    This report documents the results of the Friction Snubber Force Measurement System (FSFMS) special road test program that was performed during TDOP Phase II. The FSFMS was designed, built, and shop-tested during TDOP Phase I (see FRA/ORD-78/69). Descriptions of the test equipment, procedures, methods of data analysis, results, and recommendations a ...
  • Truck Design Optimization Project Phase II Phase I Data Evaluation and Analysis Report
    Truck Design Optimization Project. Phase II. Phase I. Data Evaluation and Analysis Report
    Gibson, David ;
    Glaser, Robert J
    1979-08-01 | PDF
    As part of the TDOP Phase II project, the FRA directed Wyle Laboratories to evaluate and analyze the test data acquired during TDOP Phase I for use in Phase II model validation and specification of performance indices. These data were contained on 204 magnetic tapes and computer printouts. The applicability of the Phase I test data to Phase II was ...
1081 - 1100 / 1162