摘要
近年来,随着城市轨道交通的迅猛发展,有轨电车与城市道路交通在平面交叉口的交通冲突矛盾越发凸显,为了保证有轨电车的高效通行,需要结合有轨电车通行的平面交叉口运行特征对交叉口的信号控制方案提出优化方法.针对上述问题,通过对比分析VISSIM的仿真评价结果,得出不同信号控制方式在有轨电车的平面交叉口的适用性,并运用控制变量法研究有轨电车的发车间隔、有轨电车的运行速度、道路交通速度等3个因素对交叉口运行的影响分析.发现在不同的仿真条件下,每一种信号控制方式下的交叉口延误都有最小的时候,即不存在某一种信号控制方案在任何情况下的绝对最优.
In recent years,with the rapid development of urban railway,traffic conflicts at the signalized intersections with at-grade light rail transi(t LRT)have become one of the main causes of substantial road traffic delay.In order to ensure the high efficiency of the LRT,the optimization method is proposed for the signal control scheme of the intersection,which is based on the operating characteristics of the LRT.This paper analyses the results of using the simulation via VISSIM and concludes different signal control scheme’s suitability in at-grade intersections.Besides,the study discusses the impact of three factors on intersection’s operation by variable-controlling approach,three factors including departure intervals of the trams,tram’s speeds,the speeds of road traffic.It is found that in different simulation conditions,each signal control scheme has a minimum vehicle delay at the intersection.in a word,there is no absolute optimization of a signal control scheme in any case.
作者
袁魁浩
吴文亮
汤左淦
YUAN Kuihao;WU Wenliang;TANG Zuogan(School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510641,China)
出处
《河南科学》
2018年第12期1986-1993,共8页
Henan Science
基金
国家自然科学基金资助项目(51378223)
