Technical Reports

Ninth Report on the Railroad Technology Program

A report on the Federal Railroad Administration's activities carried out under the High Speed Ground Transportation (HSGT) Act of 1965 as amended and extended, for the Secretary of Transportation to report annually to the President and the Congress on activities performed under the Act. This report...

In-Service Performance and Costs of Methods for Control of Urban Rail System Noise: Experimental Design

This report presents an experimental design for a project to evaluate four techniques for reducing wheel-rail noise on urban rail transit systems: (a) resilient wheels, (b) damped wheels, (c) wheel truing, and (d) rail grinding. The design presents the project questions to be answered: (1) What...

Freight Car Truck Design Optimization: Economic Analysis Report - Phase I

This report summarizes the truck economic research accomplished during Phase I of the Federal Railroad Administration's three-phase Truck Design Optimization Project (TDOP). In this phase: (1) A truck economic methodology was developed with the cooperation of representatives from the railroad...

Freight Car Truck Design Optimization: Truck Economic Data Collection and Analysis

A first interim report covering the development of the TDOP economic methodology was published by the Federal Railroad Administration in April 1975. It contains the truck investment economic evaluation procedures intended for the use of the railroad industry and their suppliers. The primary...

Evaluation of Analytical and Experimental Methodologies for the Characterization of Wheel/Rail Loads

This report has been prepared as part of the Improved Track Structures Research Program sponsored by the Office of Rail Safety Research of the Federal Railroad Administration. The major modes of track degradation have been reviewed to identify the significant wheel/rail loading mechanisms....

DYNALIST II - a Computer Program for Stability and Dynamic Response Analysis of Rail Vehicle Systems, Volume IV: Revised User's Manual

Several new capabilities have been added to the DYNALIST II computer program. These include: (1) a component matrix generator that operates as a 3-D finite element modeling program where elements consist of rigid bodies, flexural bodies, wheelsets, suspension elements, and point masses assembled on...

DYNALIST II - a Computer Program for Stability and Dynamic Response Analysis for Rail Vehicle Systems, Volume III: Technical Report Addendum

Design, Development, Fabrication, and Testing of a Synchronous Condenser for a High-Power Three-Phase Traction Drive

This report documents the synchronous machine, referred to as a synchronous condenser, which, in the tracked levitated research vehicle (TLRV), provides line commutation for the inverter and power factor correction for the linear induction motor. The machine also incorporates features permitting...

Technical Data Bases Report - Ballast and Foundation Materials Research Program

Literature and other information sources pertaining to properties of granular materials, ballast and sub-ballast materials, fine-grained soils, and structural behavior models were reviewed; presented In this report Is a summary of the current technology relative to the following: (1.) Procedures...

SOAC, State-of-the-Art Car Transit Property Engineering Tests, Final Test Report: Volume III - Data Report - MBTA, CTS, CTA, SEPTA, PATCO

This three-volume report presents the technical methodology, data samples, and results of tests conducted on the SOAC on six transit-authority properties, namely the New York City Transit Authority (NYCTA), Massachusetts Bay Area Transportation Authority (MBTA), Cleveland Transit System (CTS),...

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Technical Reports