绿闪灯与绿灯倒计时对电动自行车驾驶行为的影响对比

Comparative Study on Electric Bicycles' Driving Behavior Between Flashing Green and Green Countdown

针对过渡信号对驾驶员驾驶行为存在显著影响但缺乏规范化设置的问题,利用图像处理软件获取其驾驶行为特征参数,提出基于电动自行车过街行为的四分类方法。统计分析绿闪灯和绿灯倒计时交叉口信号过渡期间四类到达电动自行车的停车线速度和违章率及违章时间分布等指标,分析结果表明,绿闪灯会导致电动自行车较大的交叉口进入速度,绿灯倒计时会导致电动自行车较高的红灯通过率,因而更容易导致交叉口电动自行车交通事故的发生。

Aimed at the problem that transition signals are lack of standardized set although their significant influence to drivers′driving behavior, image-processing software is used to obtain the drivers′behavior parameters and the four classification method based on electric bicycles′ crossing behavior is proposed. The article counts and analyzes the index of four types electric bicycles′ parking line speed and rate of violate the rules and distribution of voilation time during intersection signal transition of the green flash and green light countdown. The results show that flashing green can spur more vehicle acceleration through the intersection which leds to a greater approach speed and green countdown can induce higher red light violation rate and therefore more easily lead to traffic accident.