Traffic flow of a roundabout crossing with an open boundary condition

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

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.

Keywords: roundabout crossing cellular automaton model bottleneck traffic flow

Received: 15 June 2009
Revised: 20 July 2009
Accepted manuscript online:

PACS:	05.65.+b	(Self-organized systems)
	45.70.Vn	(Granular models of complex systems; traffic flow)
	02.50.Cw	(Probability theory)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos.~10562001, 10762005 and 10962002).

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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 2010 Chin. Phys. B 19 040510

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