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从驾驶员动态视觉角度出发,应用UC-win/Road仿真软件对多种隧道反光环间距设置方案进行仿真模拟,并利用Tobii眼动仪对多名驾驶员展开仿真模拟实验。根据实验数据定性分析了不同行车速度下,反光环间距对驾驶员瞳孔面积及其变化率的影响变化关系,并利用Matlab中的rstool函数构建了速度、反光环间距及驾驶员瞳孔面积三者之间的趋势面模型。研究结果表明,行车速度与驾驶员瞳孔面积呈正相关,隧道反光环间距值与驾驶员瞳孔面积值呈负相关;并根据驾驶员心理状态与其瞳孔面积变化率的关系,得到不同行车速度下隧道反光环间距对驾驶员心理状态影响情况表;根据此表及驾驶员心理紧张状态与行车安全的关系,提出了不同速度下隧道反光环间距设置情况推荐值。
Based on dynamic vision of driver, UC-win / Road simulation software was used to simulate the setting of a variety of tunnel reflector spacing settings. Simulations were performed on several pilots using Tobii eye tracker. Based on the experimental data, the relationship between the driver’s pupil area and the change rate of the driver’s pupil area under different vehicle speeds was qualitatively analyzed. The velocity and distance between the reflector ring and the driver’s pupil area were constructed by using rstool function in Matlab Trend surface model between. The results show that the driving speed is positively correlated with the driver’s pupil area, and the distance between the reflective ring and the driver’s pupil area is negatively correlated. According to the relationship between driver’s psychological state and the pupil area change rate, According to the table and the relationship between driver’s psychological stress and driving safety, the recommended values for setting the distance between reflector rings under different speeds are put forward.