Traffic flow of a roundabout crossing with an open boundary condition

doi:10.1088/1674-1056/19/4/040510

中国物理B ›› 2010, Vol. 19 ›› Issue (4): 40510-040510.doi: 10.1088/1674-1056/19/4/040510

Traffic flow of a roundabout crossing with an open boundary condition

白克钊, 谭惠丽, 孔令江, 刘慕仁

College of Physical Science and Technology, Guangxi Normal University, Guilin 541004, China

收稿日期:2009-06-15 修回日期:2009-07-20 出版日期:2010-04-15 发布日期:2010-04-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos.~10562001, 10762005 and 10962002).

Traffic flow of a roundabout crossing with an open boundary condition

Bai Ke-Zhao(白克钊)^†,Tan Hui-Li(谭惠丽), Kong Ling-Jiang(孔令江), and Liu Mu-Ren(刘慕仁)

College of Physical Science and Technology, Guangxi Normal University, Guilin 541004, China

Received:2009-06-15 Revised:2009-07-20 Online:2010-04-15 Published:2010-04-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos.~10562001, 10762005 and 10962002).

摘要/Abstract

摘要： This paper presents a cellular automaton traffic flow model with an open boundary condition to describe the traffic flow at a roundabout crossing with an inner roundabout lane and an outer roundabout lane. The simulation results show that the boundary condition, bottlenecks and the self-organization affect the traffic flow at the roundabout crossing. Because of the effect of bottlenecks, jams easily appear on the inner roundabout lane. To improve the capacity of the roundabout system, proper values of the enter probability α and the out probability $\beta $ can be chosen.

Abstract: This paper presents a cellular automaton traffic flow model with an open boundary condition to describe the traffic flow at a roundabout crossing with an inner roundabout lane and an outer roundabout lane. The simulation results show that the boundary condition, bottlenecks and the self-organization affect the traffic flow at the roundabout crossing. Because of the effect of bottlenecks, jams easily appear on the inner roundabout lane. To improve the capacity of the roundabout system, proper values of the enter probability α and the out probability $\beta $ can be chosen.

Key words: roundabout crossing, cellular automaton model, bottleneck, traffic flow

中图分类号: (Self-organized systems)

05.65.+b

45.70.Vn (Granular models of complex systems; traffic flow) 02.50.Cw (Probability theory)

白克钊, 谭惠丽, 孔令江, 刘慕仁. Traffic flow of a roundabout crossing with an open boundary condition[J]. 中国物理B, 2010, 19(4): 40510-040510.

Bai Ke-Zhao(白克钊),Tan Hui-Li(谭惠丽), Kong Ling-Jiang(孔令江), and Liu Mu-Ren(刘慕仁). Traffic flow of a roundabout crossing with an open boundary condition[J]. Chin. Phys. B, 2010, 19(4): 40510-040510.

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Traffic flow of a roundabout crossing with an open boundary condition

Traffic flow of a roundabout crossing with an open boundary condition

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