An official website of the United States government
Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
This report describes the design, manufacture and testing of a propulsion system for passenger rail application utilizing a variable-voltage, variable-frequency (VWF) inverter and a squirrel cage induction motor, along with associated microprocessor control circuitry. Novel developments in this...
Laboratory track strength characterization tests on three different track structures were conducted. The objectives of these tests were to determine the structural characteristics of each track structure, under various loadings and levels of consolidation, and to compare the findings with the...
The Federal Railroad Administration (FRA) and the Association of American Railroads (AAR) have jointly sponsored an experimental program to study the 100-ton covered hopper car with the end objective of improving its safety performance. The total program includes track and laboratory testing of two...
The purpose of this report is to summarize the results of a comprehensive program that has been pursued to delineate all aspects of conductive interference (Cl) in rail transit systems and to help avoid its effects in new rail transit systems. The report documents the efforts to achieve an...
[From the Introduction] This report presents the Federal Railroad Administrations's findings in its investigation of 40 railroad employee fatalities suffered during 1984. Not included are the employee fatalities that occurred as a result of train derailments, collisions, or rail-highway crossing...
The purpose pf the Advanced Group Rapid Transit (AGRT) program was to develop an advanced automated guideway transit system capable of providing high passenger volumes, short waiting times, and high levels of passenger service. The system is the development of a transportation system consisting of...
[From the Introduction] Railroads are required to file monthly accident/incident reports with the Federal Railroad Administration's (FRA) Office of Safety in accordance with 49 CFR 225. Bulletin 153 summarizes reportable accidents/incidents that occurred in the United States during 1984.
This report describes Vehicle/Track Interaction Assessment Techniques (IAT) which are developed to provide standardized procedures and tools in order to investigate the dynamic performance of railroad vehicles, and systematically identify and cure dynamic track interaction problems associated...
This report describes Vehicle/Track Interaction Assessment Techniques (IAT) which are developed to provide standardized procedures and tools in order to investigate the dynamic performance of railroad vehicles, and systematically identify and cure dynamic track interaction problems associated...
This report describes Vehicle/Track Interaction Assessment Techniques (IAT) which - are developed to provide standardized procedures and tools in order to: Investigate the dynamic performance of railroad vehicles, and systematically identify and cure dynamic track interaction problems associated...