为研究驾驶员在草原公路景观环境中的眼动特性,就某草原公路2种不同路侧景观,利用眼动仪采集驾驶员行车时的眼动指标,并对指标进行统计分析。驾驶员在景观Ⅰ的注视持续时间和眨眼持续时间小于景观Ⅱ,瞳孔直径和扫视幅度大于景观Ⅱ;2种景观环境对驾驶员行车时的注视持续时间、眨眼持续时间、扫视幅度的影响没有显著差异;而对驾驶员的瞳孔直径的影响有显著差异。结果表明:景观Ⅰ和景观Ⅱ都比较单调,对驾驶员的视觉刺激较少,易产生视觉疲劳。
For the sake of studying eye movement characteristics of drivers driving in the prairie highway landscape environment, a field test was carried out, which involved 5 drivers as testers and two different roadside landscapes of a certain Highway in Inner Mongolia, China. Both landscapes ( Ⅰand Ⅱ ) are monotonous, but there are more elements in the landscape Ⅰ. Drivers eye movement indexes were collected while driving and analyzed using an eye tracker. It was found that the drivers fixation duration and blink duration for landscape I are shorter than those for landscape Ⅱ , but pupil diameter and saccade amplitude for landscape I are larger than those for landscape Ⅱ. The effects of two kinds of roadside landscapes on fixation duration, blink duration and saccade amplitude are not of significant difference, but effect on pupil diameter is significantly different. The research results show that monotonous landscapes provide limited visual stimulation for drivers and make them suffer from visual fatigue.