Technical Reports

User's Manual: SPAR 10 Structural Analysis, Finite Element Program, For Use on a DEC-2050 Computer System

The SPAR program, originally developed by W. D. Whetstone, is an analytical system for calculating static deflections and stresses, natural vibration modes and frequencies, and buckling loads and mode shapes associated with linear, finite element structural simulations. This Report extends the...

User's Guide: SPAR 11 Structural Analysis Finite Element Program (Including Graphics), For Use on a DEC-2050 Computer System

SPAR 11 is a version of Level 11 of the SPAR program, as modified and enhanced for the Association of American Railroads. The enhancements are in the area of interactive use and graphics on the DEC-2050 computer. This user's guide does not replace the SPAR Program Manual, but has instead the...

U. S. Transit Track Restraining Rail Volume I, Study of Requirements and Practices

This report covers a study of restraining rails in transit track made as part of the current research program of the Urban Mass Transportation Administration of the U.S. Department of transportation. The study was initiated to develop information to assist in the analysis, design, maintenance and...

Truck Design Optimization Project (TDOP) Phase II: Wear Data Collection Program Report

This program is part of the field studies conducted during the TDOP Phase II Project. TDOP is designed to examine the performance of various freight car truck designs with the objective of improving the efficiency and productivity of rail freight transportation. Maintenance and repair costs of...

Truck Design Optimization Project (TDOP) Phase II: Performance Characterization of Type I Freight Car Trucks

TDOP/Phase II is part of a series of studies being conducted by the FRA to define the engineering options available to the railroad industry to improve the efficiency and productivity of rail freight operations. As part of this effort, experimental and analytic studies have been conducted to define...

Truck Design Optimization Project (TDOP) Phase II: Guideline Test Specifications for Freight Car Trucks

Under the Federal Railroad Administration-sponsored Truck Design Optimization Project Phase II, a set of standard test specifications were developed to evaluate and characterize the performance of Type I (standard) and Type II (premium) freight car truck configurations. The test specifications...

Truck Design Optimization Project (TDOP) Phase II: Performance Specification for Type II Freight Car Trucks

One of the important goals of the Truck Design Optimization Project (TDOP) Phase II is to provide the railroad industry with a basis for performance specifications for the new generation (Type II) freight car trucks. This report sets forth such a quantitative basis as supported by available field...

Track Measurement Vehicle - TX Project Summary

This report summarizes the Federal Railroad Administration (FRA) project to design and fabricate an advanced self-propelled track geometry inspection vehicle (TX). The TX effort involves FRA contracts DOT-FR-9088 with the Budd Company for a Budd SPV-2000 diesel railcar, and DOT-FR-9112 wich...

The Wear Behavior of High Rails Tested in the First Metallurgy Experiment, 0 to 135 MGT

In the first rail metallurgy experiment, covering the period from September 1976 to September 1977, 135 million gross tons (MGT) of traffic were accumulated on the Facility for Accelerated Service Testing (FAST) track under two widely different lubrication regimes. The first regime of poor...

The Effect of Service Loading on the Bending Strength of Concrete Ties

Concrete tie bending strength tests were conducted by Battelle-Columbus Laboratories at Columbus, Ohio, as part of the Tie and Fastener Verification Studies contract (DOT-FRA-1652) sponsored by the FRA Office of Rail Safety Research. The object of the testing was to determine the effects of service...

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Technical Reports