【作者】 孟剑平； 张解放；

【Author】 Meng Jian-ping Zhang Jie-fang (Institute of Nonlinear Physics, Zhejiang Nonnal University, Jinhua 321004, China)

【机构】 浙江师范大学非线性物理研究所；

【摘要】 本文在NS模型基础上建立了一个新的单车道元胞自动机模型以研究减速带对交通流的影响。通过计算机数值模拟可以发现,在路面上“安装”减速带后,最大交通流量明显下降,减速带成为引发小规模拥塞的“源头”,但减速带数量的增加对最大流量影响并不明显。此外,当交通密度足够大时,减速带对交通流量和平均车速的影响可以被忽略。更多还原

【Abstract】 Based on the NS model of traffic flow,we propose a new single-lane cellular automaton model to study the effect of deceleration strips upon traffic flow. By performing numerical simulations under the periodic boundary condition, we find that the maximum flow is decreased evidently when there are some deceleration strips on the road and the deceleration strips could be considered as the headstream of the small scale traffic jams. But the increase of the number of the deceleration strips only influences the maximum flow slightly. Furthermore, if the vehicle density is high enough, the influence of deceleration strips on the flow and the average velocity could be ignored.更多还原