General

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...

Locomotive Crashworthiness Research Volume 3: Review and Discussion of Freight Locomotive Crashworhiness Concepts

The results of the study, summarized in this report, suggest that a cost-effective improvement in locomotive crashworthiness is feasible, at least for a few of the features. In particular, a performance specification that requires ductile collision posts with greater strength appears to yield the...

Locomotive Crashworthiness Research Volume 2: Design Concept Generation and Evaluation

The overall approach to the project included information gathering on locomotive design and crashworthiness; the development of computer models to evaluate crashworthiness; and the generation, evaluation, and prioritization of design concepts that could potentially improve locomotive cab...

Locomotive Crashworthiness Research Volume 1: Model Development and Validation

The model developed to simulate the head-on collision of two lead locomotives, each in a multi-locomotive, multi-trailing-vehicle train, appears to provide a good simulation of the resulting extent of override and crush in the lead locomotives. Results of this study show that trailing vehicles (...

Amtrak Fuel Consumption Study

This report documents a study of fuel consumption on National Railroad Passenger Corporation (Amtrak) trains and is part of an effort to determine effective ways of conserving fuel on the Amtrak system. The study was performed by the Transportation Systems Center (TSC) under the sponsorship of the...

Electronically-Controlled Pneumatic Brake Revenue Service Tests

This report, prepared by the Transportation Technology Center, Inc. (TTCI), Pueblo, Colorado, a subsidiary of the Association of American Railroads (AAR), summarizes the findings of the service testing of electronically controlled pneumatic (ECP) brakes, carried out between the spring of 1996 and...

Investigation of the Effects of Braking System Configurations on Thermal Input to Commuter Car Wheels

A heat transfer model, previously developed to estimate wheel rim temperatures during tread braking of MU power cars and validated by comparison with operational test results, is extended and appplied to cases involving several different blended brake system configurations. Preliminary and final...

Human Reliability Analysis in Support of Risk Assessment for Positive Train Control

This report describes an approach to evaluating the reliability of human actions that are modeled in a probabilistic risk assessment (PRA) of train control operations. This approach to human reliability analysis (HRA) has been applied in the case of a safety evaluation of the Communications-Based...

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General