Extended speed gradient model for traffic flow on two-lane freeways

被引:34
作者
School of Engineering Science, University of Science and Technology of China, Hefei 23006, China [1 ]
机构
[1] School of Engineering Science, University of Science and Technology of China
来源
Chin. Phys. | 2007年 / 6卷 / 1570-1575期
关键词
Lane usage inversion; Speed gradient model; Two-lane traffic;
D O I
10.1088/1009-1963/16/6/013
中图分类号
学科分类号
摘要
In this paper, the speed gradient (SG) model is extended to describe the traffic flow on two-lane freeways. Terms related to lane change are added into the continuity equations and velocity dynamic equations. The empirically observed two-lane phenomena, such as lane usage inversion and lane change rate versus density, are reproduced by extended SG model. The local cluster effect is also investigated by numerical simulations. © 2007 Chin. Phys. Soc. and IOP Publishing Ltd.
引用
收藏
页码:1570 / 1575
页数:5
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