On a motorway what is used to reduce traffic bunching?

Explanation: Congestion can be reduced by keeping traffic at a constant speed. At busy times maximum speed limits are displayed on overhead gantries. These can be varied quickly depending on the amount of traffic. By keeping to a constant speed on busy sections of motorway overall journey times are normally improved.

Category: Motorway Rules

References: The Official DVSA Guide to Driving: Section 18, Highway Code: Rule 261