城市道路交叉口借道左转交通组织研究

Research on Traffic Organization of Left-turning on Urban Road Intersection

为更好实现借道左转的交通效益,文章针对借道左转的适用条件、重要参数、配套标志标线以及实践过程中发现的问题进行了重点研究。从道路、交通和信号控制三个方面分别讨论了借道左转的适用条件;针对借道左转的实施,从参数设置和配套设施两个方面展开了分析,确定了借道左转"借道"长度和"借道"车道数的取值范围,结合《道路交通标志和标线》(GB5768-2009)和国内借道左转的应用实践,提出了借道左转的标志标线的建议设计方案;分析总结了当前借道左转实施过程中发现的问题,提出了相应的改善建议,对今后研究方向进行了展望。

In order to better realize the traffic benefit of the dynamic use of exit-lanes for left-turn,the paper focuses on the applicable conditions,important parameters,supporting signs and markings of the dynamic use of exit-lanes for left-turn and the problems found in the practice.This paper discusses the application conditions of the dynamic use of exit-lanes for left-turn from three aspects of road application conditions,traffic application conditions and signal control application conditions.Aiming at implementation of the dynamic use of exit-lanes for left-turn,it analyzes the parameter setting and the supporting facilities,puts forward the value range of the length and the number of variable lane,combining the Road Traffic Signs and Markings(GB5768-2009)and the domestic practice of the application of the dynamic use of exit-lanes for left-turn,puts forward the design of signs and markings.This paper summarizes the problems found in the current implementation process of the dynamic use of exit-lanes for left-turn,and puts forward the corresponding improvement suggestions.Finally,the further research direction is prospected.