What is the national speed limit on a single carriageway road for cars and motorcycles?

Related Information

The national speed limit for cars and motorcycles on carriageway roads without street lighting is 60 mph for single carriageway roads and 70 mph for dual carriageway roads. The national speed limit varies for different classes of vehicle, including buses and goods vehicles. The presence of a central reservation, rather than the number of lanes, determines the speed limits on single and dual carriageways. Do not treat the national speed limit as a target speed. If the conditions allow, you may drive up to this speed. Driving at the proper speed requires consideration of the time of day, the weather, and other road users. A prudent driver won't simply go 60 mph around a corner because the speed limit permits it. A driver must be aware of the posted speed limit on the road they are traveling on. Keep an eye out for speed limit signs (and sometimes they're painted on the road) because they'll be posted anywhere the speed limit changes.