基于CA模型的中小学放学门口道路交通仿真  

Traffic Simulation of Elementary and Middle School's Gate Road During Student Departing School Based on CA Model

作　　者：庞明宝[1] 陈静[1] 杨敏[1] 

机构地区：[1]河北工业大学土木工程学院,天津300401

出　　处：《系统仿真学报》2015年第5期927-934,共8页Journal of System Simulation

基　　金：国家自然科学基金(50478088);河北省自然科学基金(E2011202073;E2015202266)

摘　　要：研究基于元胞自动机模型的中小学放学期间学校门口道路交通流仿真问题。在STNS(symmetric two-lane Nagel-Schreckenberg)模型的基础上,建立一个受中小学放学影响下学校门口道路交织区段的元胞自动机模型,对放学期间的道路交通流特性进行了仿真,对驾私家车接学生和乘校车学生比例、学校错峰放学对道路交通流的影响进行了仿真实验分析。结果表明减少私家车接学生比例、增加乘校车学生比例、选择合适的错峰放学时间,可在保证交通安全的前提下达到抑制交通拥堵、减少车辆总通行时间从而提高道路实际通行能力的目的,证明了该仿真模型的正确性。The simulation problem of student departing school to the traffic flow of elementary and middle school's gate road was studied by using a cellular automaton model. Based on STNS(symmetric two-lane Nagel-Schreckenberg) model, a cellular automaton model on the interference road section of elementary and middle school's gate during student departure school was established. The traffic flow characteristics of the road during student departure school time were discussed via the simulation experiment. The effects were analyzed how the proportion of students departing school by private cars, the proportion of students departing school by school buses, and the departure school time table for students of different classes affect the traffic flow and the traffic volume. The results of the examples show that the traffic jams phenomena can be suppressed and the goal of achieving largest traffic flow and decreasing the passing time of vehicles can be realized so that traffic safety is ensured by decreasing the proportion of pupils by private cars, increasing the proportion of pupils by school buses, and selecting the appropriate departure school time table for students of different classes. The correctness of the simulation model is proved.

关 键 词：交通仿真 混合交通流 元胞自动机模型 中小学校 错峰放学 

分 类 号：U491[交通运输工程—交通运输规划与管理] U495[交通运输工程—道路与铁道工程]