Under all conditions you should drive at a speed that will allow you to…?

1. Stop within 150 m
2. Stop within a safe distance ✓
3. Stop within 90 m
4. Stop within 60 m

Answer: B. Stop within a safe distance

Under all conditions, you should drive at a speed that lets you stop within a safe distance.

Why this is the answer

The handbook treats stopping distance as something that changes with your speed, your vehicle and the road, and it tells you to allow enough following distance and to travel at a safe speed. Because stopping distance shifts with conditions, the rule is framed as a safe distance rather than one fixed number of metres. A speed that lets you stop safely is the general standard the other choices fail to capture.

Why the other answers are wrong

• A. Stop within 150 m — No passage sets 150 m as a stopping standard, and a single fixed distance would not fit every speed and road condition the handbook talks about.
• C. Stop within 90 m — The passages never give 90 m as a stopping rule; braking distance depends on speed, your vehicle and road conditions, so one number cannot cover all conditions.
• D. Stop within 60 m — A fixed 60 m figure appears nowhere in the handbook, and the material on total stopping distance shows why a set number of metres is not the general rule.

Remember it

There is no magic number of metres — your safe stopping distance changes with speed and road conditions, so pick the answer that says safe distance.