General

Ultrasonic Pulse Propagation in the Cold-Worked Layer of Railroad Rail

Ultrasonic pulses propagating along the rolling surface of used railroad rail were observed to have two distinct arrivals. One arrival corresponded to the expected Rayleigh wave. The other, travelling just ahead of the Rayleigh wave, could not be identified as either a pure shear or dilatational...

Thermal Buckling of Straight Tracks: Fundamentals, Analyses, and Preventive Measures

This report, written mainly for the practicing railroad engineer, explains the phenomenon of thermal buckling of straight tracks, shows how to analyze it, and describes measures for preventing it. Following an introductory discussion of track buckling problems caused by a temperature increase in...

Technical Documentation, Locomotive Response Model

This report represents the technical manual documentation for the Locomotive Response Model, a mathematical model, for analyzing the dynamic response of a six-axle locomotive on tangent track, and is developed using a numerical integration technique. The locomotive is represented by a thirty-nine (...

Summary of Accidents Investigated by the Federal Railroad Administration: October 1, 1976 through December 31, 1976

This document summarizes accidents investigated by the FRA from October 1, 1976 through December 31, 1976. It includes the date, time, location, accident type, casualty number, and estimated damage.

Self-Synchronous Propulsion System for Rapid Transit Railcars: Advanced Subsystem Development Program Volume I - Program Synthesis

Development of the Self-Synchronous Propulsion System was conducted under the Advanced Subsystem Development Program (ASDP) , which is a part of the Urban Rapid Rail Vehicle and Systems (URRV&S) Program sponsored by the Urban Mass Transportation Administration. The Self-Synchronous Propulsion...

Self-Synchronous Propulsion System for Rapid Transit Railcars: Advanced Subsystem Development Program Volume II - Detailed Technical Discussion

Development of the Self-Synchronous Propulsion System was conducted under the Advanced Subsystem Development Program (ASDP), which is a part of the Urban Rapid Rail Vehicle and Systems (URRV&S) Program sponsored by the Urban Mass Transportation Administration. The Self-Synchronous Propulsion...

Safety Life Cycle Assessment Program Task 6: Railroad Structural Integrity Criteria Analysis

[From the Introduction] The purpose of this report is to evaluate the structural integrity criteria for critical railcar components. Although the railroads do not have a formal structural integrity program like that specified by the Air Force for military aircraft (Military Standard 1530A),...

Railroad Research Bulletin - Autumn 1978 Volume 5, Number 2

This publication contains 1,195 abstracts of journal articles and research reports and descriptions of computer programs and magnetic data tapes. It also has 466 summaries of ongoing research activities in the railroad field. The material, selected from current railroad literature and other...

Railroad Research Bulletin - Spring 1978 Volume 5, Number 1

This publication contains 1,045 abstracts of journal articles and research reports and descriptions of computer programs and magnetic data tapes. It also has 531 summaries of ongoing research activities in the railroad field. The material, selected from current railroad literature and other...

Improved Passenger Equipment Evaluation Program: Technology Review - Wheels, Axles, Couplers

The status of two foreign rail technologies is analyzed in this report. The two technologies are Wheels and Automatic Couplers. The wheel development program for the French TGV is reviewed. It illustrates the application of classical wheel design to modern high-speed rail transport. The...

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General