Issue
EPL
Volume 84, Number 1, October 2008
Article Number 14006
Number of page(s) 5
Section Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics
DOI http://dx.doi.org/10.1209/0295-5075/84/14006
Published online 26 September 2008
EPL, 84 (2008) 14006
DOI: 10.1209/0295-5075/84/14006

Wave properties of a traffic flow model on highway with ramps

Tie-Qiao Tang1, 2, Hai-Jun Huang2, Gang Xu2 and Ying Zhang2

1   School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics Beijing 100083, China
2   School of Management, Beijing University of Aeronautics and Astronautics - Beijing 100083, China

tieqiaotang@buaa.edu.cn

received 7 May 2008; accepted in final form 28 August 2008; published October 2008
published online 26 September 2008

Abstract
In this paper, we use the model is recently presented by us to study the wave properties of the traffic flow on highway with ramps. The results show that the model can perfectly reproduce the effects that ramps have on the formation, the propagation and the evolution of the traffic waves on the main road. Finally, we study the propagating velocity of the first-order wave on the main road and we can further prove that ramps might destroy the stability of the main road traffic flow.

PACS
45.70.Vn - Granular models of complex systems, traffic flow.
89.40.-a - Transportation.

© EPLA 2008