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Preliminary Evaluation of Rail Vibration Techniques for Rail Force Measurements

It has been postulated that the vibrational response of a railroad rail, subjected to a sharp mechanical impact, should vary according to the magnitude of the internal longitudinal force. In order to test this hypothesis, a series of tests were conducted at the A.A.R.'s Track Research Laboratory in...

Plate Instrumented Wheelsets for Measurement of Wheel/Rail Forces

Strain gauge instrumented wheelsets are an important research tool in experimental rail vehicle testing. This report expounds the principle of operation of the instrumented plate type of wheelset which is constructed by the scientifically exact application of strain gauges on the plate region of...

Performance of a Single-Sided Linear Induction Motor with Solid Back Iron and with Various Misalignments - Volume I

A test facility was designed and built to measure all aspects of the performance of a single-sided high-speed linear induction motor with solid back iron over a wide range of frequency, speed, and excitation. The facility was equipped and instrumented to measure all the usual performance parameters...

Performance of a Linear Synchronous Motor with Laminated Track Poles and with Various Misalignments

A test facility was designed and built to measure the performance of a single-sided high speed homopolar Linear Synchronous Motor with laminated pole pieces over a wide range of frequency and excitation levels. The facility was instrumented to measure performance at the machine terminals, flux...

Grade Crossing Collision Investigation Checklist

Northeast Corridor Improvement Project Task 205: Cab Signal/Automatic Train Control/Train Performance Recorder General Specification

This document defines the standards and general specifications for the cab signal/automatic train control/train performance recorder system to be installed on vehicles to be operated on the improved Northeast Corridor. The specification indicates the features, performance, and other basic...

Northeast Corridor Improvement Project Electrifiction Systems Pantography Optimization: Phase I - Optimization by the Use of Computer Simulation

Download PDF Document [155.3 MB]

Characterization of Track Substructure Using Falling Weight Deflectometer and Automatic Ballast Sampling

Transportation Technology Center, Inc. (TTCI) tested a falling weight deflectometer (FWD) diagnostic apparatus, which was verified using automatic ballast sampling (ABS), and examined its ability to measure track substructure characteristics by determining shear wave speed and deflection...

Federal Railroad Administration Grant/Cooperative Agreement Final Performance Report

Federal Railroad Administration Grant/Cooperative Agreement Final Performance Report Instructions

The Code of Federal Regulations (CFR) in Title 2, Section 200.343 requires grant recipients to submit all financial, performance, and other closeout documentation as required by the terms and conditions of the award no later than 90 calendar days after the end date of the period of performance....

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General