交通信息与安全2023，Vol.41Issue(5)：158-166,9.DOI:10.3963/j.jssn.1674-4861.2023.05.016
城市道路交叉口间歇式公交专用道设置方案研究
A Study on Setting Program for Intermittent Bus Lanes at Urban Road Intersections
摘要
Abstract
The bus priority policy would cause the delay of social vehicles.In order to improve the travel efficiency of social vehicles at urban signalized intersections and maximize the lane capacity on the premise of ensuring bus priority.A type of intermittent bus lane(IBL)operation mode at urban road intersections is proposed,allowing so-cial vehicles to enter the bus lane when bus traffic is not disturbed.The type of vehicle at the entrance of intersec-tions is control by setting pre-signals to achieving time-sharing of the bus exclusive lanes.A model of cellular au-tomaton with three-lane is established considering signal coordination and lane-changing rules.A modified speed benefit model is used to simulate the operation status of bus lanes.A lane-changing pressure model is used to simu-late the mandatory lane-changing rules in the clearing area.The effectiveness of IBL at intersections is measured us-ing the evaluation indicators including speed,queuing,and delay time of vehicles.The results indicate that:①When the traffic volume is less than 50%of the lane capacity,the average delay and queueing time of social vehi-cles under the IBL mode decrease by 6.9%and 4.9%respectively,the average speed of buses increases by 3%and the average delay of buses decreases by 5%comparing to those under the mode of traditional bus exclusive lanes.②When the traffic volume reaches 50%to 80%of the lane capacity,the average speed of social vehicles increases by 15%to 37%and the average delay decreases by 8%to 20%.However,the average speed of buses decreases by 3.4%and the average delay increases by 5.7%.③When the traffic volume exceeds 80%of the lane capacity,the av-erage speed of social vehicles increases by 6.7%and the average delay time decreases by 5.8%.However,and the average delay time of buses increases by 28.2%.Anactual unban intersection is selected as an empirical case study to verify the feasibility of IBL,which shows that the use of IBL can significantly reduce queuing time during off-peak hours and under the moderate traffic volume context.关键词
城市公共交通/公交优先/间歇式公交专用道/微观仿真/元胞自动机Key words
urban public transportation/bus priority/intermittent bus lanes/microscope simulation/cellular automata分类
交通工程引用本文复制引用
张文会,朱鸿涛,宋子文..城市道路交叉口间歇式公交专用道设置方案研究[J].交通信息与安全,2023,41(5):158-166,9.基金项目
国家自然科学基金项目(51638004)、中央高校基本科研业务费专项资金项目(2572021DT09)资助 （51638004）
