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Racetrack : ウィキペディア英語版
Race track


A race track (or 'racetrack', 'racing track' or 'racing circuit') is a facility built for racing of vehicles, athletes, or animals (e.g. horse racing or greyhound racing). A race track also may feature grandstands or concourses. Racetracks are also used in the study of animal locomotion. Some motorsport tracks are called speedways.
A racetrack is a permanent facility or building. Racecourse is an alternate term for a horse racing track, found in countries such as the United Kingdom, India, Australia, Hong Kong, and the United Arab Emirates. Race tracks built for bicycles are known as velodromes. Circuit is a common alternate term for racetrack, given the usual circuitous configuration of most race tracks, allowing races to occur over several laps.
A race course, as opposed to a ''racecourse'', is a term for non-permanent tracks for sports, particularly road running, water sports, road racing, or rallying. Many sports usually held on racetracks also can occur on temporary tracks, such as the Monaco Grand Prix in Formula One.
==History==
There is some evidence of racetracks being developed in several ancient civilizations. The most developed ancient racetracks were the hippodromes of the Ancient Greeks and the circuses of the Roman Empire. Both of these structures were designed for horse and chariot racing. The stadium of the Circus Maximus in Ancient Rome, could hold 200,000 spectators.
Racing facilities existed during the Middle Ages, and there are records of a public racecourse being opened at Newmarket in London in 1174. In 1780 the Earl of Derby created a horse-racing course on his estate at Epsom; the English Derby continues to be held there today. Racecourses in the British Isles are based on grass, known as turf tracks. In the United States, the race tracks are dirt.
With the advent of the automobile in the late nineteenth/early twentieth century, racetracks were designed to suit the nature of powered machines. The earliest tracks were modified horse racing courses. Racing automobiles in such facilities began in September 1896, at Narragansett Park in Cranston, Rhode Island. The Indianapolis Motor Speedway was opened in August 1909.
Beginning in the early 1900s, motorcycle races were run on high, banked, wooden race tracks called board tracks. During the 1920s, many of the races on the AAA Championship circuit were run on such board tracks.
Modern racetracks are designed with spectator safety being paramount, following incidents of spectator and track marshals fatalities. These often involve run off areas, barriers, and high fencing.

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「Race track」の詳細全文を読む



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