Segregation effect in symmetric cellular automata model for two-lane mixed traffic |
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| Authors: | X. G. Li Z. Y. Gao B. Jia R. Jiang |
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| Affiliation: | (1) National Key Laboratory of Railway Traffic and Safety, Beijing Jiaotong University, Beijing, 100044, P.R. China;(2) School of Traffic and Transportation, Beijing Jiaotong University, Beijing, 100044, P.R. China;(3) School of Engineering Science, University of Science and Technology of China, Hefei, 230026, P.R. China |
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| Abstract: | ![]()
Segregation effects commonly exist in granular mixtures with difference in size, shape or density. In mixed traffic flow, slow vehicle and fast vehicle, as two types of particles, have different desired speed. We investigate the segregation along the road in mixed traffic flow by using a symmetric two-lane cellular automata model. A parameter D, which quantifies the degree of segregation, is defined. We study the density dependency of the parameter at different randomization probability. Simulation results show that segregation is more obviously in free flow region. We argue that the overtaking maneuvers have similar effect as percolation in granular flow. |
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| Keywords: | 05.50.+q Lattice theory and statistics 02.50.Ey Stochastic processes 64.75.+g Solubility, segregation, and mixing phase separation 89.90+n Other topics in areas of applied and interdisciplinary physics |
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