COST VERSUS TIME EQUILIBRIUM OVER A NETWORK

Most traffic assignment models assume that the generalized cost experienced by a traveler making a given trip on a network results from a combination of time and monetary expenses that is the same for everybody. To represent disaggregate trade-offs between time and monetary expenses, a model that differentiates travelers by means of an attribute, value of time, was designed. It was assumed that this attribute is continuously distributed across the population of trip-makers. After giving the economic foundation of the cost-versus-time model with continuous values of time, variable demand, and congestion effects on travel times, it is mathematically characterized as a solution of a convex minimization program. Then existence and uniqueness results as well as a convenient algorithm that avoids path storage are provided. Finally a small numerical example that demonstrates the relevance of considering continuously distributed values of time when evaluating toll highway projects is presented.

Language

  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 84-91
  • Monograph Title: Travel demand modeling and network assignment models
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00670487
  • Record Type: Publication
  • ISBN: 0309055245
  • Files: TRIS, TRB
  • Created Date: Dec 23 1994 12:00AM