Technical Reports

Railroad Yard Simulation Model: Description and Computer Program Users' Manual

  • 01
  • Oct
  • 1981
AUTHOR: L. E. Wittig, C. E. Waldman, E. K. Bender
OFFICE: RPD
REPORT NUMBER: FRA/ORD-81/25.I
SUBJECT: Braking Systems
KEYWORDS: Braking and Coupling Systems, Cost/Benefit Analysis, Freight Cars
ABSTRACT: This report is part of a larger study to identify potentially cost-effective advanced braking and coupling systems. The report describes a model for determining the cost savings in railroad yards that would result from the implementation of advanced braking and coupling systems. First, the operations of a hypothetical composite yard are explained in terms of logic diagrams. These diagrams are reduced to a set of equations, which, in turn, are incorporated into an interactive computer program. Flow diagrams for the program are included. Several example cases are presented that explain how .the user determines which variables should be changed, show how he enters this information into the program, and finally, show how he executes the program. This study has also resulted in the following reports; "Railroad Financial Evaluation: Model: Description and Computer Program Users' Manual" (FRA/ORD-81/25.II); "Methodology for Evaluating the Cost and Benefit of Advanced Braking and Coupling Systems (FRA/ORD-79/57); and "Evaluation of the Costs and Benefits of Advanced Braking and Coupling Systems" (FRA/0RD-80/49).
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