A new traffic model on compulsive lane-changing caused by off-ramp

doi:10.1088/1674-1056/25/4/048901

Abstract In the field of traffic flow studies, compulsive lane-changing refers to lane-changing (LC) behaviors due to traffic rules or bad road conditions, while free LC happens when drivers change lanes to drive on a faster or less crowded lane. LC studies based on differential equation models accurately reveal LC influence on traffic environment. This paper presents a second-order partial differential equation (PDE) model that simulates both compulsive LC behavior and free LC behavior, with lane-changing source terms in the continuity equation and a lane-changing viscosity term in the momentum equation. A specific form of this model focusing on a typical compulsive LC behavior, the ‘off-ramp problem’, is derived. Numerical simulations are given in several cases, which are consistent with real traffic phenomenon.

Keywords: traffic flow model compulsive lane-changing off-ramp fluid dynamics numerical simulation

Received: 07 October 2015
Revised: 13 December 2015
Accepted manuscript online:

PACS:	89.40.-a	(Transportation)
	02.60.-x	(Numerical approximation and analysis)
	47.11.-j	(Computational methods in fluid dynamics)
	45.70.Vn	(Granular models of complex systems; traffic flow)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11002035 and 11372147).

Corresponding Authors: Ming-Min Guo
E-mail: mmguo@fudan.edu.cn

Cite this article:

Xiao-He Liu(刘小禾), Hung-Tang Ko(柯鸿堂), Ming-Min Guo(郭明旻), Zheng Wu(吴正) A new traffic model on compulsive lane-changing caused by off-ramp 2016 Chin. Phys. B 25 048901

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A new traffic model on compulsive lane-changing caused by off-ramp

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