摘要
在城市道路交通系统中,交叉口是道路网中通行能力的瓶颈和交通事故的高发区域,随着交通量的日益增大,T形交叉口交通效率越来越低。通过对T形交叉口3相位信号配时设置方法进行研究来提高T形交叉口运行效率。分析了T形交叉口交通冲突特性,提出了T形交叉口信号相位设置的相关建议。通过对现行十字形交叉口信号配时公式进行改进,取得更加适合T形交叉口3相位信号配时方法,并结合工程实例,对此方法进行阐述。此信号配时改进方法对T形3相位交叉口信号配时,具有一定的实用性。
Intersections are the bottlenecks of flow capacity and accident hotspots in an urban traffic system. At T- intersections, the operational efficiency degrades as traffic flow increases. This paper probes into the traffic conflicts at T- intersections and proposes suggestions to improve traffic operation by changing the existing method of determining the signal timing and phasing plans. The improved signal control method has been field tested and the results are very promising.
出处
《交通信息与安全》
2010年第1期35-37,42,共4页
Journal of Transport Information and Safety
基金
"十一五"国家科技支撑计划项目(批准号:2006BAJ18B03)
国家自然科学基金项目(批准号:50978057)资助
关键词
T形交叉口
3相位
信号配时
优化
交通冲突
T-type intersection
three-phase
signal timing
optimization
traffic conflict
