A STATISTICAL APPROACH TO VEHICULAR TRAFFIC

被引:56
作者
FREUND, J
POSCHEL, T
机构
[1] UNIV POTSDAM,ARBEITSGRP NICHTLINEARE DYNAM,D-14415 POTSDAM,GERMANY
[2] UNIV CHICAGO,JAMES FRANCK INST,CHICAGO,IL 60637
来源
PHYSICA A | 1995年 / 219卷 / 1-2期
关键词
D O I
10.1016/0378-4371(95)00170-C
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A two-dimensional cellular automaton is introduced to model the flow and jamming of vehicular traffic in cities. Each site of the automaton represents a crossing where a finite number of cars can wait approaching the crossing from each of the four directions. The flow of cars obeys realistic traffic rules. We investigate the dependence of the average velocity of cars on the global traffic density. At a critical threshold for the density the average velocity reduces drastically caused by jamming. For the low-density regime we provide analytical results which agree with the numerical results.
引用
收藏
页码:95 / 113
页数:19
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