INTRODUCING "FEEDBACK" AMONG THE ORIGIN-DESTINATION, MODE AND ROUTE CHOICE STEPS OF THE URBAN TRAVEL FORECASTING PROCEDURE IN THE EMME/2 SYSTEM

The issue of "feedback" in the traditional four-step urban travel forecasting procedure (UTFP) is re-emerging with the impetus of the Clean Air Act Amendments of 1990 and the Intermodal Surface Transportation Efficiency Act. A solution to this addition problem is a model that combines the trip distribution, mode split, and assignment steps of the UTFP. This paper, which appears in a compendium of conference papers, describes the use of the Evans algorithm for the combined distribution, mode split, and traffic assignment model solution. The presentation begins with the introduction of the cost functions used and continues with the formulation of the combined origin-destination, mode, and route choice model and its optimality conditions. Then, the Evans solution algorithm and its implementation in EMME/2 are documented. And finally, an evaluation of the results and a comparison with the sequential procedure is discussed followed by concluding remarks.

Language

  • English

Media Info

  • Features: References;
  • Pagination: 11p

Subject/Index Terms

Filing Info

  • Accession Number: 00713750
  • Record Type: Publication
  • Files: TRIS, TRB, STATEDOT
  • Created Date: Nov 15 1995 12:00AM