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The effect of moving bottlenecks on a two-lane traffic flow |
Fang Yuan (方远), Chen Jian-Zhong (陈建忠), Peng Zhi-Yuan (彭志远) |
College of Automation, Northwestern Polytechnical University, Xi’an 710129, China |
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Abstract In this paper, we study the effect of moving bottlenecks on traffic flow. The full velocity difference (FVD) model is extended to the traffic flow on a two-lane highway, and new lane changing rule is proposed to reproduce the vehicular lane changing behavior. Using this model, we derive the fundamental current–density diagrams for the traffic flow with the effect of moving bottleneck. Moreover, typical time–space diagram for a two-lane highway shows the formation and dissipation of a moving bottleneck. Results demonstrate that the effect of moving bottleneck enlarges with the increase of traffic density, but the effect can be reduced by increasing the maximum velocity of heavy truck. The effects of multiple moving bottlenecks under different conditions are investigated. The effect becomes more remarkable when the coupling effect of multiple moving bottlenecks occurs.
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Received: 24 December 2012
Revised: 08 April 2013
Accepted manuscript online:
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PACS:
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89.40.-a
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(Transportation)
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45.70.Vn
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(Granular models of complex systems; traffic flow)
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02.60.Cb
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(Numerical simulation; solution of equations)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11102165), the Natural Science Basis Research Plan in Shaanxi Province, China (Grant No. 2012JM1001), and the Foundation for Fundamental Research of Northwestern Polytechnical University, China (Grant No. NPU-FFR-JC201254). |
Corresponding Authors:
Chen Jian-Zhong
E-mail: jzhchen@nwpu.edu.cn
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Cite this article:
Fang Yuan (方远), Chen Jian-Zhong (陈建忠), Peng Zhi-Yuan (彭志远) The effect of moving bottlenecks on a two-lane traffic flow 2013 Chin. Phys. B 22 108902
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