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为研究边缘率标线在高速公路长平直线路段的减速效果,采用基于驾驶员视觉节奏感形成理论,设计了3组试验方案,并开展了路上试验研究。以标线间隔单元行车时间为变量,取值分别为4,6,8 s。结果表明:3组实验中,标线间隔单元行车时间为4 s(方案1)时平均车速、85%位车速和标准差的降低幅度最大,依次为9.84,12.53,1.61 km/h;间隔单元行车时间与短时记忆时间相近时,驾驶员在试验路段行车过程中的减速行为连续,减速效果稳定;时间频率对驾驶员减速行为中的加速度存在显著影响。
In order to study the deceleration effect of the margin marking on the Changping straight section of expressway, three experimental schemes were designed based on the formation theory of driver’s visual rhythm, and the on-road test was carried out. Marking interval unit driving time as a variable, the values were 4,6,8 s. The results show that the average vehicle speed is 4 s (Option 1) and the rate of decrease of 85% vehicle speed and standard deviation is the largest among them in sequence of 9.84, 12.53 and 1.61 km / h respectively. The interval unit When the driving time and short-term memory time are similar, the driver’s deceleration behavior is continuous and the deceleration effect is stable during the driving process of the test section. The time frequency has a significant effect on the acceleration of the driver’s deceleration behavior.