距离远一点，摩擦少一点，学会正确判断车距将帮助大家避免事故的发生！
01 判断车前端与行人的距离
以轿车为例，假设行人身高为1.8米。
（1）当驾驶员刚好能看到车前行人的脚时，此时车前端与行人之间的距离为5米。
（2）当驾驶员看到车前端升高到行人膝盖高度处时，车前端与人体距离为2.2米。
（3）当驾驶员看到车前端升高到人体臀部下端时，车前端与人体之间的距离为0.3米。
02 判断与前车的距离
以SVU车型为例：
（1）从挡风玻璃下沿看到前车保险杠上沿时，此时前车离后车距离0.5米。如果前车是轿车，则在此车距下。
（2）从挡风玻璃下沿看到前车保险杠下沿时，此车前车离后车距离1.2米。如果前车是轿车，则大概为2米左右。
（3）从挡风玻璃下沿看到前车后轮胎下沿（或看到地面）时与前车距离约为5米左右。
03 右后视镜判断后车距离
（1）后车占据后视镜一半的区域，车身只有一半被看到。此时，后车离自己的车距离很近，应保持现有车道行驶，不得转向。
（2）后车占据外后视镜一半的区域，能看到整台车。此时，后车离自己的车距离约有10米，在车速较慢的情况下才能打灯后进行转向操作。
（3）后车占据外后视镜1/3的区域，能看到整台车。说明此时后车离自己的车距离约有15米，可以进行转向操作。
04 左后视镜判断后车距离
（1）后车车身已经进入后视镜虚线左侧的危险区域，说明后车与自己的车车距很近，此时不能转向。
（2）后车车身左侧已贴近安全区与危险区边界，这时就应该提高警惕，但此时打灯转向依然是安全的。
（3）后车在安全区，位于后视镜中央，说明后车与自己的车车距有15—20米，可以正常地进行转向操作。
05 车内后视镜判断后车距离
后车的轮胎下缘能够被看到，此时后车离前车距离20米左右。在此车距下，安全速度约为25公里/小时。若看到后车大灯上缘则后尾箱距后车为三米半左右。
若看到后车机仓盖与前挡玻璃交界处，则后尾箱距后车为一米。若看到后车前挡玻璃的水平三分之一，则基本靠上了。
原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/50802.html
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