Speed Limit on Motorway and dual carriageways: The speed limit of motorways and dual carriageways is 70mph (112kph). This includes the slip roads. In dry weather conditions, the limit is 60mph (96kph) for good visibility and when the road is dry and level.
The speed limit for cars, motorcycles and car-derived vans up to 2 tonnes maximum laden weight on a motorway or dual carriageway in England and Wales is 70mph (112km/h). The national speed limit applies on all single carriageways.
The law changes you need to know about in 2017
According to the Highway Code, the speed limits for cars, motorcycles and car-derived vans (up to two tonnes maximum laden weight) on motorways and dual carriageways in the UK are:
70mph (112km/h) if towing a caravan or trailer
60mph (96km/h) if driving a goods vehicle (between 3.5 and 7.5 tonnes)
speed limit on motorway and dual carriageway – The speed management system is an electronic device for measuring the average speed and the distance of the road vehicles. In addition, the device of this system indicates various parameters including over speed, malfunction, mechanical damage to any vehicle that is under its control.