道路信号交叉口行人过街速度与延误估计仿真  

Simulation of pedestrian crossing speed and delay estimation at signalized intersections

作　　者：张文会[1] 徐海彬 ZHANG Wenhui;XU Haibin(School of Civil Engineering and Transportation,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]东北林业大学土木与交通学院,哈尔滨150040

出　　处：《交通科技与经济》2024年第1期24-33,共10页Technology & Economy in Areas of Communications

基　　金：中央高校基本科研业务费专项资金项目(2572021DT09);黑龙江省重点研发计划项目(JD22A014)。

摘　　要：为了探究信号交叉口行人群体过街速度和延误影响因素,采用无人机和地面机位从高空和地面获取交通视频,并利用Tracker物理影像分析软件对视频数据进行分析。从城市信号交叉口的微观角度出发,建立了传统社会力模型和改进社会力模型,通过仿真场景模拟了行人过街情况。利用哈尔滨市两个交叉路口的实际参数对仿真模型进行了标定。实验结果显示,当人行横道宽度从4 m增加至7 m过程中,传统社会力模型下的行人过街平均延误时间分别为4.22 s、3.47 s、2.57 s和2.28 s;改进社会力模型下的行人过街平均延误时间分别为3.56 s、2.91 s、2.78 s和2.26 s。经过对比验证发现,适当提升人行横道宽度使行人实际过街速度更接近期望速度,从而降低行人过街的延误时间。结果表明,通过增加人行横道宽度可以有效改善信号交叉口行人过街的效率。In order to explore the factors affecting pedestrian crossing speed and delay at signalized intersections,this experiment used unmanned aerial vehicles(UAVs)at high altitude and ground stands to obtain traffic videos,and used Tracker physical image analysis software to analyze the video data.From the micro perspective of urban signalized intersections,traditional social force models and improved social force models were established,and pedestrian crossing situations were simulated through simulation scenarios.The simulation model was calibrated using the actual parameters of two intersections in Harbin.The experimental results show that when the width of the pedestrian crossing increases from 4m to 7m,the average delay time of pedestrians crossing the street under the traditional social force model is 4.22 s,3.47 s,2.57 s,and 2.28 s,respectively;the average delay time of pedestrians crossing the street under the improved social force model is 3.56 s,2.91 s,2.78 s,and 2.26 s,respectively.After comparative verification,it was found that appropriately increasing the width of the pedestrian crossing made the actual pedestrian crossing speed closer to the expected speed,thereby reducing the delay time for pedestrians crossing the street.The results indicate that increasing the width of pedestrian crossings can effectively improve the efficiency of pedestrian crossing at signalized intersections.

关 键 词：城市交通 行人过街仿真模型 改进社会力模型 行人过街 行人特性 

分 类 号：U491[交通运输工程—交通运输规划与管理]