基于驾驶员瞳孔变化确定隧道入口段亮度的方法

摘要

在对目前被广为采用的确定隧道入口段亮度的矗值法和最小察觉对比法进行对比分析的基础上，提出了基于驾驶员瞳孔变化确定隧道入1：7段亮度的方法，通过在隧道现场实测，详细介绍了采用该方法确定隧道入口段亮度的思路。由于该方法直接考虑驾驶员进入隧道过程中的视觉适应过程，因此，采用该方法确定隧道入1：7段亮度更有利于保障隧道交通安全。%Based on the comparison of available calculation methods of road tunnel threshold zone luminance, method of k＇ s value and the perceived contrast method,we proposed a new calculation method of road tunnel threshold zone luminance, that is the method based on drivers＇ pupil size change rules. Feasibility of the method was checked through the measurement of drivers＇ pupil size when he through tunnels. The method based on drivers＇ pupil size change so, it is more logical that luminance with other methods. rules considered the visual adaption of drivers when they through tunnels, calculated with the method based on drivers＇ pupil size change rules than