Technical Reports

Railroad Financial Evaluation Model: Description and Computer Program Users' Manual

This report is part of a larger study to identify potentially cost-effective advanced braking and coupling systems and to prepare a plan for conducting the research and development needed to bring about implementation of these systems. This report describes a model for determining the economic...

Rail Electromagnetic Compatibility Locomotive Volume 2, Summary of E-60 CP Road Test Electromagnetic Emission Measurements

Results of electromagnetic emission measurements performed on an E-60 locomotive during a revenue service run from Washington, D.C ., to New Haven, Connecticut, and back are presented. A description of the measurements and methodology employed is included.

Rail Vehicle Dynamics Model Validation

The validation of mathematical models of rail vehicle dynamics using test data poses a, number of difficult problems, which are addressed in this report. Previous attempts to validate rail vehicle models are reviewed critically, and experience gained in validating dynamic models of aircraft and...

Rail Personal Injury Study

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Preliminary Design of Passive Tilting System for Amcoach: Volume 2. Preliminary Design for Amcoach Tilt Modification

A preliminary design of the tilting truck for AMCOACH is presented to achieve speed-up in curves without increasing lateral acceleration of carbody, to maintain good ride quality and shorten operation time. The passive tilting system is adopted on the basis of successful experiences of Japanese...

Preliminary Design of Passive Tilting System for Amcoach: Volume 1. Description of Tilting Truck Currently Used by JNR

A description of the tilting truck currently used by Japanese National Railways (JNR) is presented. JNR 381-series electric railcars with passive tilting device were manufactured to aim at speed-up in curves, and have been operated in Chuo-sai line between Nagoya and Nagano, and Kisei-line between...

Prediction of Fatigue Crack Growth in Rail Steels

Measures to prevent derailments due to fatigue failures of rails require adequate knowledge of the rate of propagation of fatigue cracks under service loading. The report presents a computational model for the prediction of crack growth in rails. The model was derived on the basis of experiments of...

Power Conditioning Hardware for AC Traction Based on the Utilization of TLRV Hardware and Technology

This final report records the findings of an application study that investigated the feasibility of hardware and technology transfer to railroad traction of a multimegawatt power conditioning unit previously developed under sponsorship of the Department of Transportation. Various converter...

Pilot Study for Definition of Track Component Load Environments

This report describes the results of an experimental and analytical effort to define the vehicle induced load environment in an at-grade, concrete tie/ballast transit track structure. The experiment was performed on the UMTA transit track oval at TTC in Pueblo, Colorado in order to establish an...

Passenger Train Equipment Review Report: Volume 2. Propulsion System Components and Future Train Energy Consumption

Early in 1977, the Federal Railroad Administration, Office of Research and Development, initiated the Improved Passenger Equipment Evaluation Program (IPEEP), which was designed as a detailed systematic review of advanced passenger trains and equipment throughout the world that could possibly be...

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Technical Reports