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Miles per hour : ウィキペディア英語版 | Miles per hour
Miles per hour (abbreviated mph, MPH or mi/h) is an imperial and United States customary unit of speed expressing the number of statute miles covered in one hour. Although kilometres per hour is now used worldwide, miles per hour remains the standard unit for speed limits in the United States, the United Kingdom, Antigua & Barbuda and Puerto Rico, although the latter two use kilometres for distances. ==Roadway usage==
These include roads in the United Kingdom,〔(Speed limits ) (UK) Department for Transport. Retrieved 4 August 2015〕 the United States, and UK and US territories; American Samoa, the Bahamas, Belize,〔http://amandala.com.bz/news/?p=263765&upm_export=pdf〕 British Virgin Islands, the Cayman Islands, Dominica, the Falkland Islands, Grenada, Guam, Burma,〔:File:Naypyitaw Tollbooth.jpg〕 The N. Mariana Islands,〔() 〕 Samoa, St. Lucia, St. Vincent & The Grenadines, St. Helena, St. Kitts & Nevis, Turks & Caicos Islands, the U.S. Virgin Islands, Antigua & Barbuda (although km are used for distance), and Puerto Rico (same as former). Miles per hour are also used in the Canadian rail system.〔 Archived 25 August 2012.〕 In some countries it may be used to express the speed of delivery of a ball in sporting events such as cricket, tennis and baseball. Road traffic speeds in other countries are quoted in kilometres per hour. Occasionally, however, both systems are used: for example, in Ireland, a judge considered a speeding case by examining speeds in both kilometres per hour and miles per hour. The judge was quoted as saying the speed seemed "very excessive" at 180 km/h but did not look "as bad" at 112 mph; a reduced fine was still imposed on the speeding driver.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Miles per hour」の詳細全文を読む
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