The profile simulation program was written to help in designing a hump yard. Optimum hump yard grades and retarder placements can be extracted from the outputs of this simulation program. The movement of railroad cars over different hump yard profiles can be simulated, so that the consequences of different hump yard designs can be discovered before implementation. The CAPACY model was designed to emulate manual capacity calculations for railroad classification yards. The output from this simulation model can help in planning railroad classification yards. By running this program with different traffic level inputs and analyzing the simulation output, one can estimate the type and size of classification yard needed...Software Description: The program is written in Fortran programming language for implentation on a DEC System-10 computer using the TOPS-10 operating system.

  • Supplemental Notes:
    • Supersedes Rept. no. DOT/DF-79/001, PB-300 325. Source tape is in EBCDIC character set. Tapes can be prepared in most standard 7 or 9 track recording modes for one-half inch tape. Identify recording mode desired by specifying character set, track, density, and parity. Call NTIS Computer Products if you have questions. Price includes documentation, PB81-200560.
  • Corporate Authors:

    Transportation Systems Center

    55 Broadway, Kendall Square
    Cambridge, MA  United States  02142
  • Authors:
    • Hopkins, J B
    • Dorer, R M
    • McGrath, T P
  • Publication Date: 1980-12-5

Media Info

  • Pagination: mag tape

Subject/Index Terms

Filing Info

  • Accession Number: 00343660
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: DOT/DF-81/003, Model Simulation
  • Files: NTIS
  • Created Date: Oct 28 2002 12:00AM