Speed limit

Speed limit is the maximum (or occasionally minimum) speed legally permitted on a particular roadway. Speed limits are commonly set by the legislative bodies of national or local governments.

Overview

The first speed limits were set in the 19th century for non-motorized vehicles. With the advent of motor vehicles, the need for speed regulation became apparent. Speed limits are now set to attempt to reduce the probability and severity of crashes between vehicles, between vehicles and pedestrians, and between vehicles and fixed obstacles.

History

The first person to be convicted of speeding is believed to be Walter Arnold of East Peckham, Kent in the UK, who in 1896 was fined for speeding at 8 mph (13 km/h) in a 2 mph (3.2 km/h) zone. He was fined 1 shilling plus costs.

Speed limits by country

Speed limits vary significantly by country, state, and the nature of the road, ranging from no speed limit to a low of 10 km/h (6.2 mph) in certain urban areas.

United States

In the United States, speed limits are set by the states, and they vary. The highest speed limit in the country is 85 mph (137 km/h), which is allowed on one toll road in rural Texas.

United Kingdom

In the United Kingdom, the maximum speed limit for cars and motorcycles is 70 mph (112 km/h) on motorways and dual carriageways; 60 mph (97 km/h) on single carriageways and 30 mph (48 km/h) in built-up areas.

Enforcement

Speed limits are commonly enforced by police officers or automated speed cameras.

See also

• Traffic enforcement camera
• Speed limit enforcement
• Road traffic safety

References

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