Effect of acceleration threshold on the phase transition in a cellular automaton traffic flow model

doi:10.1088/1674-1056/20/6/064501

中国物理B ›› 2011, Vol. 20 ›› Issue (6): 64501-064501.doi: 10.1088/1674-1056/20/6/064501

Effect of acceleration threshold on the phase transition in a cellular automaton traffic flow model

高坤¹, 姜锐², 金诚杰³, 王炜³

(1)Physics and Biology Unit, Okinawa Institute of Science and Technology, Okinawa 904-0411, Japan; (2)School of Engineering Science, University of Science and Technology of China, Hefei 230026, China; (3)School of Transportation, Southeast University of China, Nanjing 210096, China

收稿日期:2010-11-11 修回日期:2010-12-15 出版日期:2011-06-15 发布日期:2011-06-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10872194 and 50738001).

Effect of acceleration threshold on the phase transition in a cellular automaton traffic flow model

Jin Cheng-Jie(金诚杰)^a)†, Wang Wei(王炜)^a), Gao Kun(高坤)^b), and Jiang Rui(姜锐)^c)

^a School of Transportation, Southeast University of China, Nanjing 210096, China; ^b Physics and Biology Unit, Okinawa Institute of Science and Technology, Okinawa 904-0411, Japan; ^c School of Engineering Science, University of Science and Technology of China, Hefei 230026, China

Received:2010-11-11 Revised:2010-12-15 Online:2011-06-15 Published:2011-06-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10872194 and 50738001).

摘要/Abstract

摘要： In this paper, we incorporate new parameters into a cellular automaton traffic flow model proposed in our previous paper [Jin et al. 2010 J. Stat. Mech. 2010 P03018]. Through these parameters, we adjust the anticipated velocity and the acceleration threshold separately. It turns out that the flow rate of synchronized flow mainly changes with the anticipated velocity, and the F→S phase transition feature mainly changes with the acceleration threshold. Therefore, we conclude that the acceleration threshold is the major factor affecting the F→S phase transition.

关键词: traffic flow, cellular automaton, synchronized flow, phase transition

Abstract: In this paper, we incorporate new parameters into a cellular automaton traffic flow model proposed in our previous paper [Jin et al. 2010 J. Stat. Mech. 2010 P03018]. Through these parameters, we adjust the anticipated velocity and the acceleration threshold separately. It turns out that the flow rate of synchronized flow mainly changes with the anticipated velocity, and the F→S phase transition feature mainly changes with the acceleration threshold. Therefore, we conclude that the acceleration threshold is the major factor affecting the F→S phase transition.

Key words: traffic flow, cellular automaton, synchronized flow, phase transition

中图分类号: (Granular models of complex systems; traffic flow)

45.70.Vn

05.40.-a (Fluctuation phenomena, random processes, noise, and Brownian motion) 02.60.Cb (Numerical simulation; solution of equations)

金诚杰, 王炜, 高坤, 姜锐. Effect of acceleration threshold on the phase transition in a cellular automaton traffic flow model[J]. 中国物理B, 2011, 20(6): 64501-064501.

Jin Cheng-Jie(金诚杰), Wang Wei(王炜), Gao Kun(高坤), and Jiang Rui(姜锐). Effect of acceleration threshold on the phase transition in a cellular automaton traffic flow model[J]. Chin. Phys. B, 2011, 20(6): 64501-064501.

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Effect of acceleration threshold on the phase transition in a cellular automaton traffic flow model

Effect of acceleration threshold on the phase transition in a cellular automaton traffic flow model

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