考虑预期效应和交通灯影响的城市道路交通元胞自动机模型  

A Cellular Automaton Model for Urban Traffic Considering Anticipation Effect in the Presence of Traffic Lights

作　　者：张剑[1] 董力耘[1] 

机构地区：[1]上海大学上海市应用数学和力学研究所,上海200072

出　　处：《上海大学学报（自然科学版）》2011年第5期642-647,共6页Journal of Shanghai University:Natural Science Edition

基　　金：国家自然科学基金资助项目(10672098;10972135);上海市教委科研创新基金资助项目(11YZ12)

摘　　要：提出描述交通灯控制下城市道路交通流动力学演化过程的元胞自动机模型,其中交通灯对于路段上车辆的影响是全局的,驾驶员可根据交通灯的状态及时调整驾驶行为,同时还考虑前方车辆的预期运动.该模型中车辆的运动更加平滑,符合实际交通现象.应用模型中的驾驶策略,可以有效地减少怠速和速度骤减的状态,从而减少机动车的尾气排放.A cellular automaton model is proposed to depict dynamical evolution of urban traffic flow under control of traffic lights on a single-lane road.It is assumed that traffic lights have global influence on vehicles,and drivers adjust their behaviors timely according to the states of traffic light.Furthermore,anticipation effect is taken into account to predict the movement of vehicles in the presence of traffic lights.Therefore vehicles can move forward more smoothly.This is in agreement with the actual situation.It is expected that using the proposed strategy in driving can help reduce vehicle idling and abrupt deceleration and lead to less emission of exhausted gas.

关 键 词：交通流 元胞自动机 预期效应 交通灯 

分 类 号：O35[理学—流体力学] U121[理学—力学]