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Technical Reports

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Perturbed Track Test: Results of Data Analysis

The Perturbed Track Test (PTT) involving the E-8 and SDP-40F locomotives was conducted at the Transportation Test Center (TTC) during November and December, 1978. Two of the primary objectives of the PTT were: to gain further understanding of track/vehicle interaction; and to demonstrate and...

Optimum Power Conditioning and Motor Combination for Locomotive Traction

This is the interim report describing the results of the research on Phase I, the first year, of this contract. The object of the research is to study alternate power conditioning-motor combinations for single axle locomotive traction drives applicable to both freight and passenger use. Candidate...

Northeast Corridor Speed Profile Simulator

A microprocessor device to display speed profile information to a locomotive engineer is described. This system was deployed at the Transportation Test Center to provide speed profile information to simulate Northeast Corridor operations.

In-Service WheelFax Concept Evaluation

Work performed on this task include the evaluation of the WheelFax concept; problems, difficulties and modifications made by purchasers of WheelFax systems; effectiveness of this detection concept with respect to the wheel inspection process defined in the Field Manual of the AAR Interchange Rules...

Demonstration of the Budd Company Amcoach Tilt Body System

The objective of this program was to demonstrate the Tilt System developed by The Budd Company. This system is applicable to any corridor and it will provide the most cost effective method of reducing trip times on the Northeast Corridor by allowing higher travel speeds on existing curves while...

Data Analysis Results of 70 Ton Boxcar Vibration Tests

This is the second of three volumes covering tests performed in April and May of 1981 at the Transportation Test Center (TTC) in Pueblo, Colorado on a 70 ton boxcar with Barber S-2-C trucks. The objective of the testing was to define the dynamic properties of the freight car for use in validating a...

Ballast and Subgrade Requirements Study: Summary and Assessment Report

Earth materials - i.e. soil and rock - form the substructure of all railroad track. In this report a summary and assessment is presented with respect to current and available practices for substructure (ballast, subballast, and subgrade) materials evaluation and selection, stabilization, design and...