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Exact stationary state for a deterministic high-speed traffic model with open boundaries

Jan de Gier

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An exact solution for a high-speed deterministic traffic model with open boundaries and synchronous update rule is presented. Due to the strong correlations in the model, the qualitative structure of the stationary state can be described for general values of the maximum speed. It is shown in the case of vmax = 2 that a detailed analysis of this structure leads to an exact solution. Explicit expressions for the stationary state probabilities are given in terms of products of 24×24 matrices. From this solution an exact expression for the correlation length is derived.


PACS

45.70.Vn Granular models of complex systems; traffic flow

05.65.+b Self-organized systems

MSC

90B20 Traffic problems

Subjects

Statistical physics and nonlinear systems

Dates

Issue 18 (11 May 2001)

Received 21 November 2000, in final form 12 March 2001



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