One-Dimensional Traffic Model to Consider Priority of the Stochastic Deceleration |
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Authors: | XUE Yu |
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Institution: | Department of Physics, Guangxi University, Nanning 530003, China;Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China ;Key Laboratory of Guangxi Numerical Computation and Simulation, Guangxi Normal University, Guilin 541004, China |
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Abstract: | A one-dimensional cellular automaton model of
traffic flow is proposed
to introduce the different delay probabilities in the steps of rules and
the stochastic deceleration prior to the deterministic one when the
anticipation velocity of vehicle is larger than the headway.
The fundamental diagram shows the capacity of road more approaches
to the observed data compared with that by the NaSch model. Moreover,
the model is able to reproduce the complicated behavior of the real traffic,
such as the metastability state, the separation of different phases and the
effect of hysteresis. It is concluded that the order arrangement of the
stochastic deceleration and deterministic acceleration has indeed
remarkable effect on traffic flow and the modification presented in
this paper is reasonable and realistic. |
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Keywords: | traffic flow cellular automaton fundamental diagram |
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