Capacity-constrained traffic assignment in networks with residual queues

Hing Keung William Lam, Yanping Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

32 Citations (Scopus)


This paper proposes a capacity-constrained traffic assignment model for strategic transport planning in which the steady-state user equilibrium principle is extended for road networks with residual queues. Therefore, the road-exit capacity and the queuing effects can be incorporated into the strategic transport model for traffic forecasting. The proposed model is applicable to the congested network particularly when the traffic demands exceed the capacity of the network during the peak period. An efficient solution method is proposed for solving the steady-state traffic assignment problem with residual queues. Then a simple numerical example is employed to demonstrate the application of the proposed model and solution method, while an example of a medium-sized arterial highway network in Sioux Falls, South Dakota, is used to test the applicability of the proposed solution to real problems.
Original languageEnglish
Pages (from-to)121-128
Number of pages8
JournalJournal of Transportation Engineering
Issue number2
Publication statusPublished - 1 Mar 2000

ASJC Scopus subject areas

  • Civil and Structural Engineering


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