五路交叉口交通改善方法及其应用

Study of Traffic Improvement Methods and Application of Five-leg Intersection

五路交叉口通常用环岛来组织交通,随着交通量的迅猛增长,现在成了道路上的主要拥堵点,是交通界公认的比较棘手的问题,探讨五路交叉口的改善方案显得尤为必要。结合城市多路交叉口的常见问题,探讨了五路交叉口设计中的五路环形交叉、五路信号控制、五路环岛加信号控制、五路改四路等方法,分析了各方法的优缺点并提出其适用条件。以实际五路交叉口改造为例,对各个方案进行仿真,并对仿真结果进行对比分析,提出了五路环行交叉口的最优解决方案。

Traffic organization of five-leg intersection usually takes rotary intersection pattern,but as traffic increases rapidly,recently it became primarily congestion,and it＇s an acknowledged problem in the traffic world,so it seems very important to study traffic improvement program on five-leg intersection.The research studied every method solving five-leg intersection-rotary intersection、signal control、rotary with signal control and transforming five-leg intersection to four,analyzed the merit and demerit of each method and put forward respectively suit condition.At last,the paper took a five-leg roundabout for example,simulated each program and compared the simulation results,and put forward the optimal solution.