Data from essentially all previous experimental programs were used to develop and verify an improved roadway dispersion model. The development of the TRAPS series of models is given here, along with a computer program employing the latest, or TRAPS II, version. The program is written as a subroutine in order to allow maximum compatibility with a large variety of computers. A listing of the subroutine and of a sample main program designed to use it are included. All input/output functions are handled by the main program. All required input values are listed along with an explanation of each term. The output terms are likewise listed and explained. In addition, the error and warning codes returned by the program as a result of invalid input parameters are explained. /FHWA/

  • Supplemental Notes:
    • Performed in cooperation with the Department of Transportation, Federal Highway Administration. Sponsored by the Texas State Department of Highways and Public Transportation. This report is also available from Texas A&M University, Texas Transportation Institute, the Texas State Department of Highways and Public Transportation.
  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  United States  76011

    Texas A&M University, College Station

    Department of Chemical Engineering, 3122 TAMU
    College Station, TX  United States  77843-3122
  • Authors:
    • Bullin, J A
    • Polasek, J C
  • Publication Date: 1978-3-21

Media Info

  • Pagination: 32 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00185264
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-TX-78-218(2) Intrm Rpt., FCP 43F3-122
  • Contract Numbers: 2-8-75-218
  • Files: TRIS, USDOT
  • Created Date: Feb 27 1979 12:00AM