SIMTRAC is a simgle track dispatching computer simulation designed to study the effects on over-the-road performance of changes to train operating policies and track and signal configurations. The program will handle stretches of CTC- signalled line of 1000 or more miles for a period of up to 10 days. The simulation (written in SIMSCRIPT) is non-stochastic, that is, it contains no random elements. Two SIMSCRIPT non-simulation programs read the data, which have been punched from special coding forms, manipulate it, and prepare an exogeneous events tape for the simulation. Train running times are based on TPC (Train Performance Calculator) times. From the TPC output, running time coefficients are derived by the TPC Chart Program to form part of the input. Outputs include delay summaries by train, class of train and direction as well as by track location, as well as a graphical output similar to that produced by a CTC machine.

  • Supplemental Notes:
    • Direct requests to Manager, Operational Research Canadian National.
  • Corporate Authors:

    Canadian National Railways

    935 la Gauchetiere Street, West
    Montreal, Quebec H3C 3N4,   Canada 
  • Publication Date: 1969-6

Subject/Index Terms

Filing Info

  • Accession Number: 00131919
  • Record Type: Publication
  • Source Agency: Canadian National Railways
  • Files: TRIS
  • Created Date: Jun 5 1976 12:00AM