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For an adequate cushion of safety in front of your vehicle, use

Correct answer

  • the three-second rule.
  • the two-second rule.
  • the one-second rule.

Explanation

For an adequate cushion of safety in front of your vehicle, many authorities recommend the "three-second rule": Maintain a following distance of at least three seconds behind the vehicle in front of you. You can measure your following distance by noting when the vehicle in front of you passes some stationary object and then counting the seconds that elapse before you reach the same object. If driving conditions are poor, you should increase your following distance.

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