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汽车驾驶员的视野大小、反应时间的长短关系到行车安全,现将其简易测量法介绍如下,供同行参考。 一、查视野 一般人正常视野是180°,驾驶员的视野是否达到此值,自已可以检查。即双眼正视前方,把两臂向前方伸直,翘起两只大拇指,大约和鼻子高度平齐。然后,将两臂慢慢地向左右两侧平移,直到两眼余光望不见自已的两只大拇指时为止。此时两拇指尖与鼻尖连线的夹角,便是所查视野近似值。
The size of the driver’s field of vision, the reaction time is related to traffic safety, now its simple measurement method is introduced below, for peer reference. First, check the field of vision Most people’s normal field of vision is 180 °, the driver’s vision is to reach this value, they can check. That is, eyes straight in front of the arms straight to the front, tilt the two thumbs, and about the same height and nose. Then, slowly move your arms to the left and right until you can see the two thumbs of your eyes without their own thumbs. At this point the angle between the tip of two thumbs and the tip of the nose is the approximate value of the field of investigation.