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为探寻视觉分心对驾驶人注视行为的影响,研究视觉分心时的驾驶人注视行为,用非接触式眼动仪采集多位被试驾驶人在实际驾驶过程中的眼动数据,并将其注视区域分为4部分,分析驾驶人视线离开前方区域情况下的注视频次及注视时长特性。结果表明:驾驶人在视线离开前方区域情况下,超过60%的注视对象是车内区域,且驾驶人观察左后视镜区域的次数高于右后视镜区域。约90%的注视时长小于1.0 s,注视时长为0.4～0.8 s的比例超过50%。驾驶人对左后视镜、仪表板和音响设备区域的注视时长均值比较接近,而对右后视镜的注视时长均值大于这3个区域。
In order to explore the effect of visual distraction on the driver’s gaze behavior, the driver’s gaze behavior during visual distraction was studied. The eye movement data of several test drivers during the actual driving were collected by non-contact eye tracker. The gaze area is divided into four sections to analyze the gaze frequency and gaze duration characteristics when the driver’s line of sight leaves the front area. The results show that more than 60% of the observers are in-car area with the line of sight leaving the front area, and the number of times the driver observes the left-rear-view mirror area is higher than that of the right-side-view mirror area. About 90% of the fixation time is less than 1.0s, the fixation time is 0.4 ~ 0.8s ratio of more than 50%. The average gaze duration of the driver for the left rear-view mirror, dashboard and audio equipment area is relatively close, whereas the average length of gaze for the right rear-view mirror is greater than these 3 areas.