OPERATING MANUAL FOR THE TEXAS LARGE NETWORK PACKAGE

TRAFFIC ASSIGNMENT IS A TECHNIQUE DEVELOPED TO AID FUTURE TRANSPORTATION PLANNING IN EVALUATING TRANSPORTATION SYSTEM ALTERNATIVES. DUE TO THE VAST QUANTITY OF DATA AND THE TEDIOUS COMPUTATIONS INVOLVED, RELIANCE UPON COMPUTERS AND AUTOMATED DATA PROCESSING IS ALMOST IMPERATIVE. THE TEXAS LARGE NETWORK PACKAGE IS A COLLECTION OF COMPUTER PROGRAMS DESIGNED TO ASSIGN TRAFFIC TO LARGE TRANSPORTATION NETWORKS. THE PACKAGE IS PREPARED FOR USE WITH AN IBM 360 COMPUTER SYSTEM AND FORMAT SPECIFICATIONS AND PROCEDURES ARE ESTABLISHED FOR THE OPERATION. SEVERAL SPECIAL FEATURES ARE AVAILABLE IN ADDITION TO THE USUAL PROGRAMS REGARDING TRAFFIC ASSIGNMENTS TO MINIMUM TIME PATHS. A SELF-BALANCING ASSIGNMENT PROGRAM IS INCLUDED WHICH CAN IMPROVE THE AGREEMENT OF ASSIGNED VOLUMES WITH COUNTED VOLUMES. THE SELF-BALANCING ASSIGNMENT PROGRAM CAN ALSO BE USED TO INDUCE A COMPLIANCE OF THE ASSIGNED VOLUMES WITH CAPACITY LIMITATIONS. CORRIDOR INTERCEPTS MAY BE CODED TO OBTAIN CORRIDOR ANALYSIS SUMMARIES, TRAVEL ROUTES MAY BE CODED TO OBTAIN VOLUME PROFILE COMPARISONS AND/OR PLOTS, AND SELECTED LINKS MAY BE INDICATED FOR A SPECIAL ANALYSIS OF ALL TRAVERSING MOVEMENTS. UNDER NORMAL OPERATIONS, EACH ASSIGNMENT IS PRESERVED AND COMPARED WITH PREVIOUS ASSIGNMENTS. /AUTHOR/

  • Supplemental Notes:
    • Res Rept 119-2, 116 PP
  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  USA  76011
  • Authors:
    • Long, G D
    • Bell, C E
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00228114
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 23 1971 12:00AM