A comparison of stochastic and deterministic traffic assignment over congested networks

Yosef Sheffi, Warren Buckler Powell

Research output: Contribution to journalArticle

59 Scopus citations

Abstract

The similarity between link flows obtained from deterministic and stochastic equilibrium traffic assignment models is investigated at different levels of congestion. A probit-based stochastic assignment is used (over a congested network) where the conditions for equilibrium are those given by Daganzo and Sheffi (1977). Stochastic equilibrium flows are generated using an iterative procedure with predetermined step sizes, and the resulting assignment is validated on the basis of the equilibrium criteria. The procedure is intended to assist in the choice of the most appropriate assignment algorithm for a given level of congestion.

Original languageEnglish (US)
Pages (from-to)53-64
Number of pages12
JournalTransportation Research Part B
Volume15
Issue number1
DOIs
StatePublished - Jan 1 1981

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Transportation

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