A predictive dynamic traffic assignment model in congested capacity-constrained road networks

A predictive dynamic traffic assignment model in congested capacity-constrained road networks

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Article ID: iaor20012842
Country: United Kingdom
Volume: 34B
Issue: 8
Start Page Number: 625
End Page Number: 644
Publication Date: Nov 2000
Journal: Transportation Research. Part B: Methodological
Authors: ,
Keywords: networks: path
Abstract:

In this paper, a predictive dynamic traffic assignment model in congested capacity-constrained road networks is formulated. A traffic simulator is developed to incrementally load the traffic demand onto the network, and updates the traffic conditions dynamically. A time-dependent shortest path algorithm is also given to determine the paths with minimum actual travel time from an origin to all the destinations. The traffic simulator and time-dependent shortest path algorithm are employed in a method of successive averages to solve the dynamic equilibrium solution of the problem. A numerical example is given to illustrate the effectiveness of the proposed method.

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