A Cellular Automaton Model for Dynamic Route Choice Behavior in Urban Roads

M. Fukui, T. Yosida and H. Oikawa
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M. Fukui: Nakanihon Automotive College
T. Yosida: Nakanihon Automotive College
H. Oikawa: Nakanihon Automotive College

A chapter in Traffic and Granular Flow’01, 2003, pp 319-324 from Springer

Abstract: Abstract Traffic flow of cars making trips from an origin (0) to a destination (D) on two-dimensional two-way roads is studied using a cellular automaton model. The crossings are at every Cr site in the square lattice road and drivers turn at the crossing in order to arrive at their destination through the shortest route from the present position. As for driver, two kinds of drivers are defined. When they can’t advance through the shortest route by the congestion on the road, (1) the dynamic driver immediately changes the advancing direction at the crossing and (2) the static driver does not change the direction to keep the shortest route, but finally changes the route after waiting for Ts time-steps. The traffic flow is simulated by the CA model of these road systems, and effects of the route-choice behavior of the drivers on the occurrence of a traffic jam are investigated. It has been found that the static drivers become the seeds for the global jam even if they are less and the supply of traffic information to the drivers can avoid the occurrence of the global jam by the encouragement of detours around the congestion.

Keywords: Travel Time; Traffic Flow; Present Position; Urban Road; Static Driver (search for similar items in EconPapers)
Date: 2003
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DOI: 10.1007/978-3-662-10583-2_30

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