基于元胞自动机的基本路段行程时间研究

摘要

The focus of the paper is the research of travel time of urban basic roads with multi-lane and channelized sections as well as traffic signal control.A cellular automata model CAUB is established based on NaSch model through the description of basic move rules,lane changing features,and responses to signals.At last CAUB is used to simulate travel time of basic roads.Results show that the travel time on basic roads displays break nature and is influenced by flow and signal setting,which relates to flow structure.%以城市基本路段上的行程时间为研究对象,研究了多车道、含渠化区、信号控制影响下的行程时间.通过对驾驶员基本移动规则、换道特性、信号控制反应的描述,基于NaSch模型建立了基本路段上的元胞自动机模型CAUB,并利用CAUB对行程时间进行了研究.结果表明,基本路段上的行程时间与流量和信号设置有关,也同转向流量比例有关,且呈现突变的特性.