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Most Likely Traffic Equilibrium Route Flows Analysis and Computation

  • T. Larsson
  • J. T. Lundgren
  • C. Rydergren
  • M. Patriksson
Chapter
Part of the Nonconvex Optimization and Its Applications book series (NOIA, volume 58)

Abstract

When analyzing equilibrium traffic flows it is usually the link flows and link travel demands that are of interest, but in some certain cases analyses require the knowledge of route flows. It is well known that the route flows are non-unique in the static and deterministic cases of traffic equilibrium. Furthermore, different assignment methods can generate different route flow output. We show how this non-uniqueness can affect the results in applications such as in the O-D estimation/adjustment problem, in the construction of induced O-D matrices, exhaust fume emission analyses and in link toll usage analyses. We state a model for finding, uniquely, the most likely route flows given the equilibrium link flows, and propose a solution algorithm for the problem based on partial dualization. We present computational results for the proposed algorithm and results from an application to exhaust fume emissions.

Keywords

Traffic equilibrium route flows entropy maximization 

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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • T. Larsson
    • 1
  • J. T. Lundgren
    • 1
  • C. Rydergren
    • 1
  • M. Patriksson
    • 2
  1. 1.Department of MathematicsLinköing UniversityLinköingSweden
  2. 2.Department of MathematicsChalmers University of TechnologyGöeborgSweden

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