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Interstate 375 (I-375) in Detroit, at only in length, once had the distinction of being the shortest signed Interstate Highway in the country. It is the southernmost leg of the Walter P. Chrysler Freeway and a spur of I-75 into downtown Detroit, ending at the unsigned Business Spur Interstate 375 (BS I-375), better known as Jefferson Avenue. The freeway opened on June 12, 1964. The Michigan Department of Transportation (MDOT) announced in 2013 that it may remove I-375 in the future. ==Route description== I-375 and the Chrysler Freeway begin at Jefferson Avenue and St. Antoine Street in downtown Detroit near the Renaissance Center. They run east before turning north. Just about a mile (1.6 km) after the southern terminus, I-375 meets the Fisher Freeway which carries I-75 north of downtown. At this interchange, I-75 takes ramps to leave the Fisher Freeway and use the Chrysler Freeway, replacing I-375. I-375 is a four-lane freeway the entire length. The entire length of I-375 is included on the National Highway System, a network of roadways that are important to the country's economy, defense, and mobility. According to the Michigan Department of Transportation (MDOT), I-375 is .〔 At the time it opened until at least 2007, I-375 was the shortest signed Interstate in the country.〔 Based on FHWA data, there are three Interstates that are shorter: I-110 in Texas (), I-878 in New York () and I-315 in Montana (). The latter two designations are not signed on their respective roadways,〔 *"Montana" (Map). 1 in:3 mi. pp. 60–1. Great Falls inset. § N16. *"New York: New York City" (Map). 1 in:2 mi. pp. 72–3. New York City & Vicinity inset. §§ J13–14. 〕 and I-110 in Texas has since been signed. Every year, MDOT conducts a series of surveys on its highways in the state to measure traffic volume. In 2009, MDOT calculated that 14,112 vehicles per day used the southernmost section of I-375, on average, and 53,900 vehicles used the northernmost section near I-75. These vehicles included 798 trucks. 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「Interstate 375 (Michigan)」の詳細全文を読む スポンサード リンク
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