Europhys. Lett.
Volume 76, Number 5, December 2006
Page(s) 787 - 793
Section General
Published online 03 November 2006
Europhys. Lett., 76 (5), pp. 787-793 (2006)
DOI: 10.1209/epl/i2006-10355-6

Model for dynamic traffic congestion in scale-free networks

J. J. Wu, Z. Y. Gao and H. J. Sun

State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University Beijing, 100044, PRC and School of Traffic and Transportation, Beijing Jiaotong University Beijing, 100044, PRC

received 20 June 2006; accepted in final form 9 October 2006
published online 3 November 2006

We present a new load distribution mechanism and obtain the dynamic critical load-generating rate based on the unoccupied capacity in scale-free networks. And the dynamics of traffic congestion is studied numerically. By investigating the effectiveness of the proposed mechanism for scale-free and random networks, we find that the traffic congestion and critical load-generating rate are strongly dependent on the unoccupied capacity, the topology and the size of traffic networks.

05.70.Fh - Phase transitions: general studies.
89.90.+n - Other topics in areas of applied and interdisciplinary physics.
87.23.Ge - Dynamics of social systems.

© EDP Sciences 2006