You’re on a smart motorway. What does it mean when a mandatory speed limit is displayed above the hard shoulder?

Explanation: If a mandatory speed-limit sign is shown above the hard shoulder, this lane can be used as a running lane. You must stay within the signed speed limit. Look out for any vehicles that have broken down and are blocking the hard shoulder.

Category: Traffic Signs

References: The Official DVSA Guide to Driving Buses and Coaches: Section 4, The Official DVSA Guide to Driving Goods Vehicles: Section 4