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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 1101 - 1120 of 1196 results
  • Engineering data characterizing the fleet of US railway rolling stock Volume 2 methodology and data
    Engineering data characterizing the fleet of U.S. railway rolling stock. Volume 2 : methodology and data
    Przybylinski, P G ;
    Anderson, G B
    1981-11-01 | 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 TDOP Phase II Guideline Test Specifications for Freight Car Trucks
    Truck Design Optimization Project (TDOP) Phase II: Guideline Test Specifications for Freight Car Trucks
    RamaChandran, P V ;
    ElMadany, M M
    1981-09-01 | PDF
    Under the Federal Railroad Administration-sponsored Truck Design Optimization Project Phase II, a set of standard test specifications were developed to evaluate and characterize the performance of Type I (standard) and Type II (premium) freight car truck configurations. The test specifications provide guidelines for the conducting, acquisition, and ...
  • Railroad Classification Yard Technology Manual Volume II Yard Computer Systems
    Railroad Classification Yard Technology Manual: Volume II : Yard Computer Systems
    Savage, N.P. ;
    Tuan, P. L.
    1981-08-01 | PDF
    This volume (Volume II) of the Railroad Classification Yard Technology Manual documents the railroad classification yard computer systems methodology. The subjects covered are: functional description of process control and inventory computer systems, development of computer system requirements, economic analysis, and computer systems acquisition, i ...
  • Railroad Classification Yard Technology Computer System Methodology Case Study Potomac Yard
    Railroad Classification Yard Technology: Computer System Methodology: Case Study: Potomac Yard
    Savage, N.P. ;
    Hackworth, M.A.
    1981-08-01 | PDF
    This report documents the application of the railroad classification yard computer system methodology to Potomac Yard of the Richmond, Fredericksburg, and Potomac Railroad Company (RF&P). This case study entailed evaluation of the yard traffic capacity, development of computer systems requirements, analysis of alternative hardware configurations, a ...
  • Truck Design Optimization Project TDOP Phase II Performance Specification for Type II Freight Car Trucks
    Truck Design Optimization Project (TDOP) Phase II: Performance Specification for Type II Freight Car Trucks
    RamaChandran, P V ;
    ElMadany, M M
    1981-08-01 | PDF
    One of the important goals of the Truck Design Optimization Project (TDOP) Phase II is to provide the railroad industry with a basis for performance specifications for the new generation (Type II) freight car trucks. This report sets forth such a quantitative basis as supported by available field test data. The quantified performance characterizati ...
  • Truck Design Optimization Project TDOP Phase II Wear Data Collection Program Report
    Truck Design Optimization Project (TDOP) Phase II: Wear Data Collection Program Report
    Bakken, G ;
    Jones, C W
    1981-08-01 | PDF
    This program is part of the field studies conducted during the TDOP Phase II Project. TDOP is designed to examine the performance of various freight car truck designs with the objective of improving the efficiency and productivity of rail freight transportation. Maintenance and repair costs of truck components constitute an important factor in the ...
  • Railroad Classification Yard Technology Manual Volume III Freight Car Rollability
    Railroad Classification Yard Technology Manual. Volume III. Freight Car Rollability
    Wong, P. J. ;
    Stock, W. A.
    1981-07-01 | PDF
    The report presents a survey of rolling resistance research, histograms of rolling resistance from five yards, a statistical regression analysis of causal factors affecting rolling resistance, procedures for constructing a rolling resistance histogram at a new yard, and an analysis of errors in the measurement of rolling resistance.
  • Advanced proceedings of the second classification yard technology workshop
    Advanced proceedings of the second classification yard technology workshop
    United States. Department of Transportation. Federal Railroad Administration  ...
    1981-05-01 | PDF
    The purpose of this workshop was to present recent developments in yard related research along with discussing problem areas deserving further research. Also, railroad representatives will present reports on recently completed yard projects especially focusing on design areas of improvement and innovation.
  • 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 ...
  • Lightweight Vehicle Track Shunting
    Lightweight Vehicle Track Shunting
    Whalen, R B ;
    Horvath, R
    1981-04-01 | PDF
    The report was written in response to a standing need for a brief summary overview of the safety and reliability problems, applicable government regulations, and current status of industry developments associated with the operation of Lightweight Vehicles (LWV's) over U.S. railroad signal systems. An effort has been made to treat the subject of tra ...
  • 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 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
1101 - 1120 / 1196
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