交叉路口红信号灯等待时长对驾驶员反应时的影响

Drivers ’ Reaction Time towards Red-light Timing at Urban Intersections

研究交叉路口红灯信号等待时间对驾驶员反应时的影响。采集交叉口实际交通红灯信号时长(从40、60、80、100和120s),运用E-prime软件模拟驾驶中的等待红灯环境,考察不同时长的红灯等待之后转换成绿灯的驾驶员反应时的变化。研究样本来自30名具有驾驶经验的大学生,实验数据运用SPSS 17.0统计分析。研究结果表明,驾驶员的反应在不同时长的红灯等待之后有一定的变化,在红灯时长40s和60s驾驶反应时逐渐缩短,尤其是在红灯时长达到80s之后,驾驶员的反应最快;之后在红灯达到100s和120s驾驶员的反应逐渐减慢。驾驶员的红灯等待极限是在80s附近。

The study aims to explore the drivers＇ reaction time influenced by the red light timing at urban signalized intersections. The data collected from red-light timing ranges from 40s, 60s,80s, 100s, to 120s. E-prime is used to simu late the signalized intersections and measure the drivers＇ reaction time to the onset of green-light. Thirty undergraduate drivers are involved and the data are analyzed in SPSS 17.0. The results show that 80s is the maximum timing for waiting the red light as compared to other four timings in the way of shortest reaction time to the onset of green light. It is there- fore suspected that the 80 second is possibly the maximum for the red-light waiting at the intersections.