北京航空航天大学学报 ›› 2005, Vol. 31 ›› Issue (10): 1121-1124.

• 论文 • 上一篇    下一篇

两车道交通流的波动分析

唐铁桥, 黄海军   

  1. 北京航空航天大学 经济管理学院, 北京 100083
  • 收稿日期:2004-06-25 出版日期:2005-10-31 发布日期:2010-09-20
  • 作者简介:唐铁桥(1977-),男,湖南邵东人,博士生, tangtieqiao@sina.com.
  • 基金资助:

    国家自然科学基金资助项目(70425006)

Wave properties of a traffic flow model for freeways with two lanes

Tang Tieqiao, Huang Haijun   

  1. School of Economics and Management, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2004-06-25 Online:2005-10-31 Published:2010-09-20

摘要: 对一个由快慢两条车道组成的交通流系统,将基于速度梯度的动力方程应用到每条车道上,得到一种新的交通流动力学模型,可以用来揭示车流的小扰失稳和走走停停等非平衡特性.研究了该模型的波动特性,包括冲击波、稀疏波和一阶波传播,数值计算结果表明该模型能够较好地处理冲击波和稀疏波现象,也能够正确地再现走走停停的交通现象.此研究有助于进一步理解多车道的驾车行为和多车道交通流的非线性动力学特性,从而可以提高交通管理与控制水平.

Abstract: A new continuum traffic flow dynamics model for freeways with two lanes where the faster vehicles are allowed to travel on both lanes while the slower vehicles are allowed to travel on the slower lane only, is developed through applying the speed gradient-based momentum equation for each lane. Some non-equilibrium phenomena of traffic flow such as small disturbance instability and stop-and-go waves can be reproduced by the new continuum model. The wave properties of the new model, which include shock waves, rarefaction waves and first order wave of the two lanes, are respectively studied. The numerical results show that the model respectively reflects the shock waves and rarefaction waves of the two lanes, and the figures about first order wave speeds of the two lanes respectively describe the stop-and-go traffic on both lanes. This study can further help understand the complicated driving behavior and the nonlinear properties of traffic flow dynamics on multilane freeways, and then improve the traffic control and management.

中图分类号: 


版权所有 © 《北京航空航天大学学报》编辑部
通讯地址:北京市海淀区学院路37号 北京航空航天大学学报编辑部 邮编:100191 E-mail:jbuaa@buaa.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发