Abstract In this paper, the viscous continuum traffic flow model for a single lane is extended to the traffic flow for two-lane freeways. The proposed model is a higher-order continuum model considering the coupling and lane changing effects of the vehicles on two adjacent lanes. It results from integrating the Taylor series expansion of the viscous continuum traffic flow model proposed by Ge (2006 Physica A 371 667) into the multi-lane model presented by Daganzo (1997 Transpn. Res. B 31 83). Our proposed model may be used to describe non-anisotropic behaviour because of lane changing in multi-lane traffic. A linear stability analysis is given and the neutral stability condition is obtained. Also, issues related to lane changing, shock waves and rarefaction waves, local clustering and phase transition are investigated through a simulation experiment. The simulation results show that the proposed model is capable of explaining some particular traffic phenomena commonly observable in real world traffic flow.
Received: 10 December 2008
Revised: 25 February 2009
Accepted manuscript online:
PACS:
45.70.Vn
(Granular models of complex systems; traffic flow)
Fund: Project supported
by the National High Technoloy Research and Development Program of
China (Grant No 511-0910-1031) and the National ``10th Five-year''
Science and Technique Important Program of China (Grant No
2002BA404A07).
Cite this article:
Sun Di-Hua (孙棣华) and Peng Guang-Han(彭光含) A viscous continuum traffic flow model with consideration of the coupling effect for two-lane freeways 2009 Chin. Phys. B 18 3724
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