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为提高高速公路中长隧道路段运营安全水平,促使驾驶人主动降低行车速度至安全范围,对高速公路中长隧道出入口段视错觉减速标线设置参数开展研究。通过实际道路试验,采集并分析中长隧道出入口段行车速度特性及视觉特性;依据驾驶人瞳孔面积变化速率与视觉障碍的表征关系,得到驶入及驶出隧道时基于视觉感受最佳的期望车速值;分别建立隧道入口段顺鱼刺形减速标线设置参数模型和隧道出口段梳齿形减速标线设置参数模型,选取典型初始速度及最佳期望车速检验模型效果。研究结果表明,驶入和驶出隧道时,最佳期望车速分别为50 km/h和60 km/h;基于模型计算,获得隧道入口段3种鱼刺形减速标线设置参数和出口段1种梳齿型减速标线设置参数。
In order to improve the operation safety level of the middle and long tunnel sections of the expressway and urge the driver to reduce the driving speed to the safety range voluntarily, the set parameters of the optical deceleration marking at the exit and entrance section of the long tunnel of the expressway are studied. According to the relationship between the rate of change of pupil area and visual disturbance, the expected speed based on visual perception is obtained when entering and exiting the tunnel by the actual road test, collecting and analyzing the speed and visual characteristics of the traffic at the entrance and exit of medium and long tunnels The parameter model of tunneling stalling speed setting line and tunneling exit section combing tooth setting retarder setting parameters model were established respectively. The model initial speed and the best expected speed test model were selected. The results show that the optimal expected speed is 50 km / h and 60 km / h respectively when entering and leaving the tunnel. Based on the model calculation, three kinds of fish barometric deceleration marking setting parameters and one exit type Comb-tooth deceleration marking set parameters.