Traffic flow of a roundabout crossing with an open boundary condition |
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Authors: | Bai Ke-Zhao Tan Hui-Li Kong Ling-Jiang and Liu Mu-Ren |
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Affiliation: | College of Physical Science and Technology, Guangxi Normal University, Guilin 541004, China |
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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 $\alpha $ and the out probability $\beta $ can be
chosen. |
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Keywords: | roundabout crossing cellular automaton model bottleneck traffic flow |
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