At night if one is driving at 110kph you will not have time to stop before you hit a stationary vehicle…..

1. “If there is an obstacle in the road, and assuming a speed of 110kph, the vehicle will collide with the obstacle at approximately 98kph” 

2. Stopping distances :
Reaction & breaking = stopping distance
100kph 44m & 49m = 73m
120kph 53m & 71m = 124m
140kph 62m & 96m = 158m
160kph 71m & 126m = 197m


3. At night we see only 50m on dip lights and 100m on bright lights
50m = 1.5 seconds at 120kph on dip lights and 3 seconds on bright lights
We should regard stopping distances as relative, eg. 140kph compared to 100kph. Absolute values are of lesser importance.

4. Distance more than doubles from 100kph to 160kph.
Wet roads require greater stopping distances.
Add auto-pilot wake-up time at 3 seconds, perception and recognition times, and we reach 300m – 400m.