A modified weighted probabilistic cellular automaton traffic flow model  

作　　者：庄倩 贾斌 李新刚 

机构地区：[1]School of Traffic and Transportation,Beijing Jiaotong University

出　　处：《Chinese Physics B》2009年第8期3271-3278,共8页中国物理B（英文版）

基　　金：supported by the State Key Development Program for Basic Research of China (Grant No 2006CB705500);the National Natural Science Foundation of China (Grant Nos 70631001,70501004 and 70701004);Program for New Century Excellent Talents in University (Grant No CET-07-0057)

摘　　要：This paper modifies the weighted probabilistic cellular automaton model （Li X L, Kuang H, Song T, et al 2008 Chin. Phys. B 17 2366） which considered a diversity of traffic behaviors under real traffic situations induced by various driving characters and habits. In the new model, the effects of the velocity at the last time step and drivers＇ desire for acceleration are taken into account. The fundamental diagram, spatial-temporal diagram, and the time series of one-minute data are analyzed. The results show that this model reproduces synchronized flow. Finally, it simulates the on-ramp system with the proposed model. Some characteristics including the phase diagram are studied.This paper modifies the weighted probabilistic cellular automaton model （Li X L, Kuang H, Song T, et al 2008 Chin. Phys. B 17 2366） which considered a diversity of traffic behaviors under real traffic situations induced by various driving characters and habits. In the new model, the effects of the velocity at the last time step and drivers＇ desire for acceleration are taken into account. The fundamental diagram, spatial-temporal diagram, and the time series of one-minute data are analyzed. The results show that this model reproduces synchronized flow. Finally, it simulates the on-ramp system with the proposed model. Some characteristics including the phase diagram are studied.

关 键 词：synchronized flow probabilistic distribution function on-ramp system cellular automaton 

分 类 号：TP301.1[自动化与计算机技术—计算机系统结构]