Safety margins

At 70 mph, how does your braking distance compare with your thinking distance?

The braking distance is much greater
Correct
They are about equal
The thinking distance is much greater
There is no braking distance at high speed

Why?

In the Typical Stopping Distances chart with rule 126, at 70 mph the thinking distance is about 21 metres but the braking distance is about 75 metres. Braking distance grows fastest as speed rises, which is why extra speed is so dangerous.

Highway Code rule 126

Practise by topic Create account

At 70 mph, how does your braking distance compare with your thinking distance?

Get 5 practice questions in your inbox every morning, until your test.

Related questions