Technical Reports

Truck Design Optimization Project (TDOP) Phase II: Final Report

  • 01
  • Feb
  • 1982
AUTHOR: P. V. RamaChandran, M. M. ElMadany, R. J. Glaser, G. B. Bakken
OFFICE: RPD
REPORT NUMBER: FRA/ORD-81/48
SUBJECT: Freight Operations
KEYWORDS: Freight Car Trucks, Performance Characteristics, Test Specifications, Economics, Cost/Benefit Analysis, Fuel Consumption
ABSTRACT: The overall objectives of the TDOP Phase II are to provide technological and economic bases for assessing freight car truck performance and design, and to generate uniform testing and performance guidelines for truck/carbody systems. This report summarizes the approaches employed in this study which included the development of a truck evaluation methodology to delineate the relationships between performance and railroad operating costs and profits; establishment of analytic and experimental procedures for relating truck parameters to the economic-based performance indices over the range of in-service train configurations, track conditions, equipment parameters, and speeds; and conduct of analytical and experimental studies to define the performance boundaries of existing and proposed freight car truck configurations. The report discusses the development of performance and test specifications, and the methodology used in defining economic implications. Also included in the report are summary characteristics of Type I and Type II freight car trucks, guideline performance specifications for Type II freight car trucks, a set of guidelines for standardized field and laboratory tests, and conclusions with respect to freight ear truck economics, in such areas as maintenance costs, fuel consumption, and rail wear.
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