General

Passenger Rail Vehicle Safety Assessment Methodology Volume I: Summary of Safe Performance Limits

This report presents a methodology based on computer simulation that assesses the safe dynamic performance limits of commuter passenger vehicles. The methodologyt consists of determining the critical design parameters and characteristic properties of both the vehicle and the track, establishing the...

Single Passenger Rail Car Impact Test Volume III: Test Procedures, Instrumentation and Data

A full-scale impact test was performed November 16, 1999 at the Federal Railroad Administration's Transportation Technology Center, Pueblo, Colorado. The test was performed on a Budd Company Pioneer-type commuter passenger car. The purpose of the test was to measure strains, accelerations and...

Fracture Resistance and Fatigue Crack Growth Characteristics of Railroad Wheels and Axles

The effects of chemical composition, temperature and loading rates on the plane strain fracture toughness K sub I sub c of railroad wheels have been determined. Similarly, the effects of these variables were determined for grade U and F railroads axles. The carbon content was determined to be the...

Evaluation of a Prototype Acoustic Signature Inspection System for Railroad Wheels

A description is given of considerations in the design of a prototype acoustic signature inspection system for railroad wheels. The evolution of each of the components of the system is detailed including hammers, microphones, wheel sensors, wayside electronics and signal conditioning unit. The...

Engineering Data Characterizing the Fleet of U.S.Railway Rolling Stock Volume II: Methodology and Data

This report contains engineering parameter descriptions of major and distinctive freight vehicle configurations covering approximately 96% of the U.S. freight vehicle fleet. This data has been developed primarily for use in analytical simulation modeling of rail vehicles to analyses of vehicle/...

Dynamic Buff and Draft Testing Techniques

The Federal Railroad Administration and the Association of American Railroads have jointly sponsored a program for developing cost-effective and rational techniques for evaluating the curving performance of any freight car under buff and draft conditions. The procedures arc developed as possible...

Evaluation of Concepts for Locomotive Crew Egress

"This report presents the results of the first phase of a program to develop innovative concepts for a locomotive crew egress system. The program targeted rollover derailment accidents, where the options for crew egress are most limited.In Phase I of this program, Foster-Miller conceptualized an...

AEM-7 Electric Locomotive Testing at the Transportation Test Center

This report describes the tests conducted at the Transportation Test Center (TTC) on the first production AEM-7 locomotive, AMTRAK 900. These tests, which were conducted between April 1980 and May 1981, were to evaluate the locomotive characteristics on 25 kV 60 Hz and 12.5 kV 60 Hz voltage...

Locomotive Crashworthiness Research Volume 5: Cab Car Crashworthiness Report

Models used to analyze locomotive crashworthiness are modified for application to control cab cars of the types used for intercity and commuter rail passenger service. An existing control cab car is analyzed for crashworthiness based on scenarios developed from two accidents. The peak strength of...

Locomotive Crashworthiness Research Volume 4: Additional Freight Locomotive Calculations

Previously developed computer models (see Volume 1) are used to carry out additional calculations for evaluation of road freight locomotive crashworthiness. The effect of fewer locomotives (as would be expected after transition from DC motor to higher-traction AC motor locomotive) is investigated...

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