Car permit · Following distance

Picture yourself driving the blue car behind the red one. What is the minimum gap you should keep?

Picture yourself driving the blue car behind the red one. What is the minimum gap you should keep?

Correct answer: One car length per 10 mph, or a 3-second gap.

Answer options

  1. AHalf a car length per 10 mph, or a 1.5-second gap
  2. BOne car length per 10 mph, or a 3-second gap Correct
  3. COne car length per 20 mph, or a 1-second gap

Why

A widely taught guideline is to stay at least one car length back for every 10 mph, or to keep a 3-second gap: when the car ahead passes a fixed point, you should be able to count three seconds before you reach it. The other choices leave much less space than either measure calls for.

About this question

Topic: Following distance   License: Car permit

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