北京交通大学学报2025，Vol.49Issue(1)：136-147,12.DOI:10.11860/j.issn.1673-0291.20230129
考虑行人过街的交叉口综合待驶区一体化模型
Integration model of tandem intersections considering pedestrian crossings
摘要
Abstract
To address the issue of insufficient utilization of space-time resources in conventional tandem intersections,which leads to a loss of traffic efficiency at intersections,this study proposes a novel in-tegrated model for tandem intersections that accounts for pedestrian crossings.First,the design form,control strategy,and applicable conditions of the new tandem intersection are discussed.Next,based on the operational patterns of traffic flow and pedestrian crossings,separate delay calculation models for vehicles and pedestrians are proposed.Then,considering pedestrian crossing safety and the opera-tional efficiency of both vehicles and pedestrians,an optimal time-space resource allocation model is constructed based on the control strategy.Finally,the case is validated using VISSIM simulation soft-ware.The results show that the optimized design of the new tandem intersection can transform an oversaturated intersection to an unsaturated state,reducing flow saturation in all directions to below 0.8.Compared with the current situation,the capacity of key traffic directions is increased by over 40%,the average delay at the intersection is reduced by approximately over 50%,the average num-ber of stops is decreased by approximately 30%,and the optimization effect outperforms that of the traditional Webster timing method.Compared with traditional tandem intersections,the proposed model introduces a pedestrian crossing phase at the pre-signal and controls right-turn traffic,further optimizing the utilization of space-time resources within the intersection.This enhances intersection ca-pacity while providing new options for pedestrian crossings,offering a fresh perspective for the study of tandem intersections.关键词
信号交叉口/综合待驶区/行人过街/时空资源分配Key words
signalized intersection/tandem intersection/pedestrian crossing/space-time resource dis-tribution分类
交通工程引用本文复制引用
吴先宇,范宏伟,梁衡..考虑行人过街的交叉口综合待驶区一体化模型[J].北京交通大学学报,2025,49(1):136-147,12.基金项目
国家自然科学基金(52302423) （52302423）
中央高校基本科研业务费专项资金(2022JBZY005) National Natural Science Foundation of China(52302423) （2022JBZY005）
Fundamental Research Funds for the Central Universities(2022JBZY005) （2022JBZY005）
