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.
Received: 17 October 2005
Revised: 20 February 2006
Accepted manuscript online:
(Granular models of complex systems; traffic flow)
Fund: 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
Cite this article:
Chen Rui-Xiong (陈瑞熊), Bai Ke-Zhao (白克钊), Liu Mu-Ren (刘慕仁) The CA model for traffic-flow at the grade roundabout crossing 2006 Chinese Physics 15 1471
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