基于元胞自动机的交通事件交通流仿真模型  

Cellular Automaton Based Traffic Flow Simulation Model for Traffic Incidents

作　　者：赵康嘉 陈淑燕[1] 

机构地区：[1]东南大学,江苏南京210096

出　　处：《公路交通科技》2014年第3期133-138,共6页Journal of Highway and Transportation Research and Development

基　　金：国家高技术研究发展计划(八六三计划)项目(2012AA112304)

摘　　要：在传统元胞自动机模型的基础上,增加了对交通事件状态下驾驶员行为的特征分析,提出了基于速度的换道规则以改进传统的STCA模型,构建了适用于模拟交通事件状态下交通流的元胞自动机仿真模型。利用改进的模型和传统的STCA模型进行了双车道高速路一条车道关闭交通事件交通流仿真试验。试验结果表明,就车辆在关闭位置上游处分布和换道行为的空间分布而言,该模型能够比传统STCA模型更加真实地模拟交通事件状态下的交通流状态。Based on the traditional CA model, considering the characters of driver behavior under the traffic incident condition, the velocity based rules of lane changing is proposed to improve the traditional STCA model, and a CA model for traffic flow simulation suitable for traffic incident condition is built. Both the proposed model and the traditional model are applied to do the traffic flow simulation experiment of the incidents on a 2-lane expressway with one lane closed. The simulation result shows that the proposed model performed well on the simulation of traffic flow under traffic incident condition in terms of the vehicle distribution at the upstream of the closed position and the distribution of lane changing behaviors compared with the traditional STCA model.

关 键 词：交通工程 交通流仿真模型 元胞自动机模型 交通事件 试验 

分 类 号：U491.265[交通运输工程—交通运输规划与管理]