The brief time lag between the two braking systems results in cars stopping a little later than the drivers expected.
两种刹车系统之间的短暂延迟会导致汽车停下来的时间比驾驶者预计的要晚一点。
2
Since this USES a 2.5 second reaction time and braking friction of 0.29, initial distances outside this range should almost always result in stopping before collision.