CONTRIBUTIONS TO LOGIT ASSIGNMENT MODEL

In the past, research in traffic assignment modeling has been directed primarily toward the deterministic model. Alternative, more behavioral principles were thought to be too demanding computationally. Two mathematical contributions that enable one to solve a logit assignment model with flow-dependent travel times at a reduced cost are presented. First, a convergence test for Fisk's minimization program is introduced on the basis of a duality gap principle. Second, a new definition of Dial's STOCH fixed-time logit assignment procedure is given, in which the set of available paths is defined only once and the computations are reinterpreted. A numerical experiment indicates that these tools make the logit assignment model competitive compared with the procedures conventionally used to solve the deterministic model.

Language

  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 207-212
  • Monograph Title: Travel demand forecasting, travel behavior analysis, time-sensitive transportation, and traffic assignment methods
  • Serial:

Subject/Index Terms

  • TRT Terms: Logits; Traffic assignment
  • Subject Areas: Highways; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

  • Accession Number: 00714873
  • Record Type: Publication
  • ISBN: 0309061709
  • Files: TRIS, TRB
  • Created Date: Dec 8 1995 12:00AM