Technical Reports

Instrumentation for Measurement of Forces on Wheels of Rail Vehicles

The information in this report covers the procurement, development and testing of instrumentation designed to measure the dynamic forces and temperatures which are created in the wheels of a loaded rail vehicle truck. The information contained herein is intended for use by scientific, research...

Guidelines for Enhancement of Visual Conspicuity of the Trailing End of Trains

This report summarizes a comprehensive study of potential means of reducing the probability of train-train collisions through enhancement of the visual conspicuity of the trailing end of trains. The basic function requirements and constraints for such devices are set forth, followed by a review...

Development of Analytic Fire Models

This report describes the progress from June 17, 1974 to September 16, 1974, in a project to develop analytic models of pool fires and torch fires.

Characterization of Drawgear Systems During Coupler Angling

This reference manual on lateral force characteristics of various types of draft gears and couplers under draft and buff loads during angling was developed as part of the Track-Train Dynamics Program. Data from these tests can be used in several TTD mathematical models, particularly the Lateral...

Assessment of Design Tools and Criteria for Urban Rail Track Structures: Volume II. At-Grade Slab Track

The development of techniques and criteria for track design is an important part of the Rail Supporting Technology Program that is being managed for the Urban Mass Transportation Administration by the Transportation Systems Center (TSC). This report presents the results of a critical review of...

Assessment of Design Tools and Criteria for Urban Rail Track Structures: Volume I. At-Grade Tie-Ballast Track

A Methodology for Evaluating the Economic Impacts of Applying Railroad Safety Standards: Volume I

This report presents a methodology for evaluating the economic impacts of applying railroad safety standards. The scope is considered broad enough to permit evaluation of all the safety standards thus far proposed by the Federal Railroad Administration and to allow for detailed analysis of...

Track Geometry Survey Device for LIM Research Vehicle Test Track

A track survey device was designed, built and operated to measure the geometry of the FRA Linear Induction Motor Test Track at Pueblo, Colorado. A laser beam is used for the measurement of profile and alignment; an electronic level for the measurement of superrelation and mechanical sensors for...

Railroad Research Bulletin: Autumn 1973

This publication contains 1,297 abstracts of journal articles and research reports selected by RRIS from current railroad literature and 150 summaries of ongoing research activities in the railroad field. The material covers the entire range of railroading from technology to management,...

Preliminary Design Studies of Magnetic Suspensions for High Speed Ground Transportation

This report examines certain critical problem areas relative to magnetic suspension of high-speed vehicles and develops a baseline design for a TMLRV (tracked magnetically levitated research vehicle). Both types of magnetic suspension, the repulsive-force suspension and the attractive-force...

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Technical Reports