基于T型交叉路口的倒计时信号灯分析

Analysis of Countdown Traffic Lights Based on T-shaped Intersection

以西安市翠华路与育才路的T型交叉路口为例,通过VISSIM软件仿真无倒计时信号灯情况下的理想路况,并采用现场观测的方法了解驾驶员在经过红路灯时驾驶员的驾驶行为,研究倒计时信号灯对驾驶员驾驶行为的影响。研究结果表明机动车绿灯倒计时并不一定有利于交叉路口的交通安全及通行效率,因此为保证交通安全和效率,应谨慎使用机动车绿灯倒计时。

Taken the T-shaped intersection of Cuihua Road and Yucai Road in Xi'an as an example,this paper used VISSIM software to simulate the ideal road conditions without countdown lights and uses on-site observation to investigate the driving behavior of the driver's green light countdown,and analyzes the impact of the countdown lights on driving behavior.The research results showed that the countdown of the green lights of motor vehicles didn’t necessarily benefit the traffic safety and traffic efficiency of intersections.Therefore,in order to ensure traffic safety and efficiency,the countdown of green lights of motor vehicles should be used carefully.