基于信号交叉口车头时距分布的VISSIM仿真参数校核研究  

Simulation Parameters Calibration of VISSIM Based on Headway Distribution at Signalized Intersection

作　　者：屈新明[1] 姚红云[1] 王玉刚[2] 

机构地区：[1]重庆交通大学交通运输学院,重庆400074 [2]河南理工大学能源科学与工程学院,河南焦作454000

出　　处：《交通运输研究》2016年第1期1-7,共7页Transport Research

基　　金：重庆市"151"科技重大专项(cstc2013jcsf-zdzxqq X0003)

摘　　要：为了提高微观交通仿真评价分析的精度和可信度,需要根据实际交通情况对微观交通模型关键参数进行校核。校核分析了VISSIM微观交通仿真模型中关键驾驶行为参数和车辆动力性能等参数,选取信号交叉口车头时距作为仿真校核目标参数,提出了信号交叉口仿真参数校核流程。通过实际调查重庆市多个信号交叉口,统计得到车头时距分布关系,对仿真校核流程进行了实例验证。实例验证结果表明,经过参数校核后构建的仿真场景与实际交通运行状态相吻合,以此进行仿真评价分析具有较高的可信度。In order to improve the accuracy and reliability of microscopic traffic simulation analysis,thekey parameters of microscopic traffic model should be calibrated according to the actual traffic situation.The key parameters of driving behavior and vehicle dynamic performance in microscopic traffic simula-tion model VISSIM were calibrated. Headway distribution at signalized intersection was selected as thesimulation calibration target parameter,simulation parameters calibration process at signalized intersec-tion was proposed. Through investigation of plurality signalized intersections in Chongqing,the headwaydistribution relationship was obtained to verify the calibration process. Verification result shows that sim-ulation scenario based on calibration coincides with the actual operation state of the traffic well. In thissimulation analysis,evaluation has high credibility.

关 键 词：信号交叉口 车头时距 饱和流率 微观交通仿真 参数校核 

分 类 号：U491[交通运输工程—交通运输规划与管理]