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

作　　者：金诚杰 王炜 高坤 姜锐 

机构地区：[1]School of Transportation, Southeast University of China [2]Physics and Biology Unit, Okinawa Institute of Science and Technology [3]School of Engineering Science, University of Science and Technology of China

出　　处：《Chinese Physics B》2011年第6期283-288,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 10872194 and 50738001)

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.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 

分 类 号：TP301.1[自动化与计算机技术—计算机系统结构]