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  2. Kilometres per hour - Wikipedia

    en.wikipedia.org/wiki/Kilometres_per_hour

    Speed limit sign in the Republic of Ireland, using "km/h.". The SI representations, classified as symbols, are "km/h", "km h −1" and "km·h −1".Several other abbreviations of "kilometres per hour" have been used since the term was introduced and many are still in use today; for example, dictionaries list "kph", [3] [4] [5] "kmph" and "km/hr" [6] as English abbreviations.

  3. Miles per hour - Wikipedia

    en.wikipedia.org/wiki/Miles_per_hour

    Miles per hour (mph, m.p.h., MPH, or mi/h) is a British imperial and United States customary unit of speed expressing the number of miles travelled in one hour. It is used in the United Kingdom , the United States , and a number of smaller countries, most of which are UK or US territories, or have close historical ties with the UK or US.

  4. Template:Convert/list of units/speed - Wikipedia

    en.wikipedia.org/wiki/Template:Convert/list_of...

    Speed; system unit code (alternative) symbol or abbrev. notes sample default conversion combinations SI: metre per second: m/s m/s US spelling: meter per second 1.0 m/s (3.3 ft/s)

  5. Speed limits in the United States - Wikipedia

    en.wikipedia.org/wiki/Speed_limits_in_the_United...

    Prima facie (Absolute above 55 mph (89 km/h) on a 2-lane road or above 65 mph (105 km/h) on a divided highway) Over 100 mph (160 km/h) results in a mandatory court appearance and possible 30-day license suspension [64] Traffic school once every 18 months, except for offenses resulting in a mandatory court appearance.

  6. Speed limit - Wikipedia

    en.wikipedia.org/wiki/Speed_limit

    A series of Locomotive Acts (in 1861, 1865 and 1878) created the first numeric speed limits for mechanically propelled vehicles in the UK; the 1861 Act introduced a UK speed limit of 10 mph (16 km/h) on open roads in town, which was reduced to 2 mph (3 km/h) in towns and 4 mph (6 km/h) in rural areas by the 1865 "Red Flag Act". [16]

  7. Speed limits in Ireland - Wikipedia

    en.wikipedia.org/wiki/Speed_limits_in_Ireland

    This replaced the 50 mph (80 km/h) speed limit in all but a few cases where regulations had been drafted specifically to impose a 50 mph (80 km/h) limit. While the built up area and special speed limits were clearly indicated to motorists by the number 30, 40 or 50 in black numbers on a white circular background with a red outline, there was no ...

  8. Speed limits by country - Wikipedia

    en.wikipedia.org/wiki/Speed_limits_by_country

    Highest-posted speed limits around the world. Kilometres per hour are on the left and miles per hour on the right.* A speed limit is the limit of speed allowed by law for road vehicles, usually the maximum speed allowed.

  9. Speed limits in Australia - Wikipedia

    en.wikipedia.org/wiki/Speed_limits_in_Australia

    Speed limits in Australia range from 5 km/h (3.1 mph) shared zones to 130 km/h (81 mph). Speed limit signage is in km/h since metrication on 1 July 1974. All speed limits, with the sole exception of the South Australian school and roadworks zones, which are signposted at 25 km/h, are multiples of 10 km/h – the last digit in all speed signs is zero.