中国物理B ›› 2006, Vol. 15 ›› Issue (7): 1471-1476.doi: 10.1088/1009-1963/15/7/015

• GENERAL • 上一篇    下一篇

The CA model for traffic-flow at the grade roundabout crossing

陈瑞熊, 白克钊, 刘慕仁   

  1. College of Physics and Information Technology, Guangxi Normal University,Guilin 541004, China
  • 收稿日期:2005-10-17 修回日期:2006-02-20 出版日期:2006-07-20 发布日期:2006-07-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 70371067, 10362001, 10347001 and 10562001), the National Natural Science Foundation of Guangxi Zhuang Autonomous Region, China (Grant No 04470307), and the Special Fund for t

The CA model for traffic-flow at the grade roundabout crossing

Chen Rui-Xiong (陈瑞熊), Bai Ke-Zhao (白克钊), Liu Mu-Ren (刘慕仁)   

  1. College of Physics and Information Technology, Guangxi Normal University,Guilin 541004, China
  • Received:2005-10-17 Revised:2006-02-20 Online:2006-07-20 Published:2006-07-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 70371067, 10362001, 10347001 and 10562001), the National Natural Science Foundation of Guangxi Zhuang Autonomous Region, China (Grant No 04470307), and the Special Fund for t

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摘要： The cellular automaton model is suggested to describe the traffic-flow at the grade roundabout crossing. After the simulation with computer, the fundamental properties of this model have been revealed. Analysing this kind of road structure, this paper transforms the grade roundabout crossing with inner-roundabout-lane and outer-roundabout-lane into a configuration with many bottlenecks. Because of the self-organization, the traffic flow remains unblocked under a certain vehicle density. Some results of the simulation are close to the actual design parameter.

Abstract: The cellular automaton model is suggested to describe the traffic-flow at the grade roundabout crossing. After the simulation with computer, the fundamental properties of this model have been revealed. Analysing this kind of road structure, this paper transforms the grade roundabout crossing with inner-roundabout-lane and outer-roundabout-lane into a configuration with many bottlenecks. Because of the self-organization, the traffic flow remains unblocked under a certain vehicle density. Some results of the simulation are close to the actual design parameter.

Key words: grade roundabout crossing, cellular automaton, bottleneck, self-organization

中图分类号:  (Lattice theory and statistics)

  • 05.50.+q
45.70.Vn (Granular models of complex systems; traffic flow)