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城市交叉口是城市道路网的关键节点,是交通阻塞和事故的多发地,对交叉口实施科学的管理和控制是交通工程的重要研究课题之一。相比较而言,大型平面交叉路口的交通信号控制受路口条件限制,在信号配时方案设计过程中,需要考虑综合因素,以提高路口通行安全及通行效率为判据。本文以深圳市南山区深南/南新、深南/南山交叉口为例,在调查、分析其路口现状交通运行状况的基础上,运用交叉口冲突点理论,对信号控制相位进行了设计和配时优化,较好地提高了这两个相邻路口的通行效率。
Urban intersection is the key node of urban road network, which is a traffic jam and accidental multiple places. It is one of the important research topics in traffic engineering to implement scientific management and control of the intersection. In contrast, the control of traffic signals at large plane intersections is limited by the intersection conditions. During the design of signal timing schemes, comprehensive factors need to be considered to improve the traffic safety and traffic efficiency at junctions. Taking Shennan / Nanxin and Shennan / Nanshan intersections in Nanshan District, Shenzhen as an example, based on the investigation and analysis of the current traffic conditions at intersections, this paper uses the collision point theory of intersections to design and control the phase of signals. Timing optimization, better improve the traffic efficiency of these two adjacent junctions.