A cellular automaton model for a bridge traffic bottleneck

被引：9

作者：

Xiao, SF ^{[1
]}

Kong, LJ ^{[1
]}

Liu, MR ^{[1
]}

机构：

[1] Guangxi Normal Univ, Coll Phys & Informat Engn, Guilin 541004, Peoples R China

来源：

ACTA MECHANICA SINICA | 2005年 / 21卷 / 03期

基金：

中国国家自然科学基金;

关键词：

traffic flow; cellular automata model; bridge-bottleneck; phase transition; unstable phase;

D O I：

10.1007/s10409-005-0030-1

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A cellular automaton (CA) model is proposed in this paper to analyze a bridge traffic bottleneck. The simulation results with this model show that there are several phase transitions in the traffic average density, velocity and flow for each lane under a periodic boundary condition. An unstable phase in the traffic average density and velocity for the upstream and downstream lanes of the bridge is shown in a range of initial traffic densities. The critical points of the phase transitions and the phenomenon of the unstable phase found in the simulation are also explained with the mean-field theory.

引用

页码：305 / 309

页数：5

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