General

Development of a System to Display and Record Slack Action in Freight Trains

This report summarizes the development of a system which senses, displays and records the slack action or inter-car movement in freight trains. The system, called the Draft-Buff Indicator (DBI) , was developed to serve as a train-handling aid. It provides the user (railroad training officer,...

Calculated Performance of the ASEA RC4A and Alsthom CC14500 Locomotive Hauled Amfleet Consists - New York to Washington, D. C.

This report presents a description and the results of Train Performance Calculations performed to determine the performance of specific Swedish and French Locomotive Hauled Amfleet Consists on the existing Northeast Corridor track route between New York City and Washington, D. C., assuming a...

An Analytical and Experimental Evaluation of Concrete Cross Tie and Fastener Loads

This report has been prepared as part of the Improved Track Structures Research Program sponsored by the Office of Rail Safety Research of the Federal Railroad Administration. The report covers a review and evaluation of track analysis models for predicting tie and fastener loads. The principal...

Advanced Systems and Advanced Technology: a Summary of Ten Years of Advanced Research and Development by the Federal Railroad Administration

This document summarizes the advanced systems and advanced technology research done by the FRA over the last ten years. It is separated into two sections. The first section, Advanced Systems, contains the following parts: Systems Engineering, Tracked Air Cushion Vehicles, Tube Vehicles, Multimodal...

Accident/Incident Bulletin No.145

This document contains all accidents/incidents filed by railroads in accordance with 49 CFR 225. It covers the 1976 calendar year.

A Study on Railroad Ballast Economics

This report presents the results of Phase V - Economic Evaluation of the Ballast and Foundation Materials Research Program. The present "State of the Art" in the ballast costing area is discussed. The individual ballast costs are quantified to the extent possible using the data base compiled...

A Bibliography on Rail Technology

This rail technology review provides assistance to a number of rail technology programs initiated by the Transportation Systems Center (TSC) for the Federal Railroad Administration (FRA). The results of a search and review in four specific areas in the field of rail technology are presented in...

Test Results Summary Report for DODX Railcar Stability Test

This document outlines the test results of the DODX Stability Test. The purpose of these tests was to insure compliance of the DODX railcars for different car loadings with the Pittsburgh Naval Reactors amended American Association of Railroads Specification D-65.

Technical Documentation: Locomotive Truck Hunting Model

Two very different modes of hunting behavior are frequently observed; body hunting and truck hunting. Body hunting or primary hunting is often characterized by violent motions of the carbody. Truck hunting, or secondary hunting, is inherent in the vehicle design. Theoretically, with a perfect...

Tank Car Head Puncture Mechanisms

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...

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General