Why is tailgating (driving too close behind the vehicle in front) dangerous?

Correct Answer

The vehicle will not have sufficient distance to stop safely in an emergency.

Explanation: If you drive too close to the vehicle in front and it brakes suddenly; you will not have enough time to react. For that reason you should always keep a safe distance from the vehicle in front. One way of calculating a safe distance in dry weather is the two-second rule: allow at least two seconds to elapse between the vehicle in front and your own vehicle passing a fixed point such as a lamp post or sign post.