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Speed limit sign on a single-carriageway road indicating a speed limit of 50 mph (80 km/h). The limits are posted on both sides of the road. Sign at the Republic of Ireland–United Kingdom border indicating that limits in Northern Ireland (part of the United Kingdom) are given in miles per hour, unlike those in the Republic, which are given in ...
The United Kingdom has a well developed and extensive network of roads totalling about 262,300 miles (422,100 km). Road distances are shown in miles or yards and UK speed limits are indicated in miles per hour (mph) or by the use of the national speed limit (NSL) symbol.
British roads are limited for most vehicles by the National Speed Limit.Road signs in the UK use imperial units, so speed limits are posted in miles per hour.Speed limits are the maximum speed at which certain drivers may legally drive on a road rather than a defined appropriate speed, and in some cases the nature of a road may dictate that one should drive significantly more slowly than the ...
The United Kingdom national speed limit for cars and motorcycles is 70 mph (110 km/h) on a motorway and dual carriageway, and 60 mph (97 km/h) on a single carriageway road. In urban areas where there is electric street lighting the speed limit is 30 mph (48 km/h) unless otherwise signed. [18] [19]
A speed limit is the limit of speed allowed by law for road vehicles, usually the maximum speed allowed. Occasionally, there is a minimum speed limit. [1] Advisory speed limits also exist, which are recommended but not mandatory speeds. Speed limits are commonly set by the legislative bodies of national or local governments.
All main countries/regions, except for the United States and the United Kingdom, use the metric system. Some mark this fact by using units on various signs. Note that some smaller English-speaking countries in the Caribbean also use miles per hour. Advisory speed limit signs in most countries list units, although New Zealand does not.
SPECS average speed cameras above a motorway Temporary roadside speed limit enforcement. Road speed limit enforcement in the United Kingdom is the action taken by appropriately empowered authorities to attempt to persuade road vehicle users to comply with the speed limits in force on the UK's roads.
Research in 1998 showed that the reduction of some 30 mph (48 km/h) United Kingdom speed limits to 20 mph (32 km/h) had achieved only a 1 mph (1.6 km/h) drop in speeds and no discernible reduction in accidents; 20 mph (32 km/h) speed limit zones, which use self-enforcing traffic calming, achieved average speed reductions of 10 mph (16 km/h ...