重庆理工大学学报2024，Vol.38Issue(1)：180-191,12.DOI:10.3969/j.issn.1674-8425(z).2024.01.020
非机动车影响下考虑不均衡车流的信号控制方案优化方法
Optimization method for signal control scheme considering unbalanced traffic flow with the effect of non-motorized vehicles
摘要
Abstract
The current design of intersection signal phase relies heavily on practical experience.Without thorough consideration of the impact of the non-traffic flow characteristics and non-motorized vehicles'street-crossing mode,it often causes poor use of time and space resources.This paper proposes an intersection signal dynamic release scheme which takes into account the phase traffic flow imbalance and the impacts of non-motorized vehicle expansion effect on motorized vehicles.A delay estimation model based on different release methods is built,and a sensitivity analysis method is employed to present quantitative setting conditions for different release schemes.An intersection in Beijing is taken as an example.The signal timing schemes corresponding to different release schemes are obtained by improving the ant colony algorithm.The results show"rotation release+twice crossing"is used when a is greater than 0.25.When aj is less than 0.25,the ratio of left-turn and direct flow is greater than 1:3,and the left-turn flow of non-motorized vehicles is 100～500 veh·h-1,"symmetrical release+once crossing"is adopted.When the ratio of flow is less than 1∶3,"symmetrical release+twice crossing"is adopted accordingly.Compared to the traditional release scheme,the use of symmetrical lap release results in a reduction of 13.6s in delay per person,down by 25.81％.Therefore,the release scheme proposed in this paper effectively improves the traffic efficiency at intersections.关键词
城市交通/非机动车膨胀效应/不均衡车流/延误估计模型/信号优化Key words
urban transportation/non-motorized vehicle inflation effect/unbalanced traffic flow/delay calculation model/signal optimization分类
交通工程引用本文复制引用
张广俊,张智勇,李永行,伍权,乔好..非机动车影响下考虑不均衡车流的信号控制方案优化方法[J].重庆理工大学学报,2024,38(1):180-191,12.基金项目
国家重点研发计划项目(2018YFB1601300) （2018YFB1601300）
昆明理工大学课外学术科技创新基金项目(2022KJ141) （2022KJ141）
