Maintain an adequate following distance behind other vehicles:

Question

Maintaining an adequate following distance ensures that you will have enough space to stop or swerve out of the way if the vehicle ahead of you stops suddenly. A space cushion also provides you with a better view of any hazards on the road surface, such as potholes.

Accepted Answer

To allow you time and space to identify and react to hazards.

Answer

So you can tailgate.

Answer

To allow for traffic counters to accurately count you as a vehicle.

Answer

To encourage other drivers to cut you off.