基于公交优先与综合待行区的交叉口信号控制研究

Intersection Signal Control Based on Bus Priority and Comprehensive Approach Area

优先发展城市公共交通,创新优化交通组织管理是缓解城市交通问题的有效途径。综合待行区的设置可在不改变交叉口原有道路设施条件的情况下,有效提高交叉口的通行能力。以交叉口综合待行区和基于公交优先的交叉口设置方法为基础,综合两种方法,讨论了公交优先和综合待行区在交叉口进口道的布置方法和设置条件,提出了基于公交优先与综合待行区的交叉口交通组织设计及信号控制方法,并运用VISSIM微观仿真软件对南昌市某交叉口进行实例验证。研究结果表明:相比优化前,在交叉口进口道设置基于公交优先的综合待行区,降低了社会车辆的平均延误,同时显著降低了公交的平均延误。

The priority development of urban public transport and innovative optimization of traffic organization and management are effective ways to solve the urban traffic problem.It is effective to improve the traffic capacity of the intersection without changing the original road facility conditions of the intersection by setting comprehensive approach area.Based on the methods of setting the comprehensive approach area and bus priority at intersections,the layout method and setting conditions of comprehensive approach area and bus priority at the entrance of intersection were discussed.And a traffic organization and signal control method at intersections based on bus priority and comprehensive approach area was proposed.And VISSIM micro-simulation software was used to verify an intersection in Nanchang.The research results show that:compared with the condition before optimization,setting the comprehensive approach area based on bus priority at the entrance of intersection reduces the average delay of social vehicles and significantly reduces the average delay of public transport at the same time.