高速公路连续隧道群驾驶人视觉特性分析

为了提高高速公路隧道群的行车安全,研究隧道群环境下驾驶人的视觉特性,在实际高速公路隧道群场景中,设计了驾驶人眼动特性实验方案,借助TobiiGlass2眼动仪与ErgoLAB数据分析平台采集了20名实验者的注视、扫视及瞳孔变化等眼动行为数据,对比分析了视觉特性变量在不同隧道、不同区段的差异.结果显示,在水平方向上第1条...

An Analysis of Visual Characteristics of Drivers Over Continuous Highway Tunnels

In order to improve traffic safety of highway segments with continuous tunnels, visual characteristics of drivers are analyzed. An experimentfor collecting characteristics of drivers'eye movement is designed in actual highway scenes. Eye movement data of 20 drivers, such as fixation, scanning, and pupil area change is collected with TobiiGlass2 and ErgoLAB data analytics tool. The visual characteristics of drivers inside different tunnels and at different sections are compared and analyzed. Study results show that the average view angle is higher in the first tunnel than that in the second tunnel in the horizontal direction, but it is opposite in the vertical direction. Average saccade time of the second tunnel is 47.75% shorter than that of the first tunnel. Average pupil diameter of the first tunnel is 7.89% larger than that of the second tunnel. Mean and variance of change rate of the pupil area at the entrance segment of the first tunnel are larger than that of the second tunnel. It can be concluded that when driving through the second tunnel over continuous highway tunnels, drivers' visual load isreduced, and visual stability is improved, when compared to those observed over the first tunnel.