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M-120 is a state trunkline highway in the US state of Michigan in the southwest Lower Peninsula. The highway runs northeast from Muskegon to Hesperia. In between, the road passes through suburban Muskegon, forests and farmland. Some 5,900–26,000 vehicles use the highway each day on average as it runs long a series of roads that follow county lines in the area. The current highway to bear the M-120 designation is the third in the state. The first was a spur route in the Lansing area in the 1930s. The second was a route that connected to like-numbered state highways in both Ohio and Indiana. The current M-120 was originally part of M-20 until that highway was rerouted between New Era and US Highway 31 (US 31). ==Route description== The current route starts at Business US 31 (Bus. US 31) where Muskegon Lake and the Muskegon River meet in Muskegon. As it crosses the river, it is known as the Veterans Memorial Causeway, with a section of Veterans Memorial Park between the northbound and southbound sections of the road. This road continues north as Whitehall Road, which connects Muskegon to Whitehall. At Whitehall Road, M-120 turns east on Holton Road and continues in a northeastern direction through the suburb of North Muskegon. The south side of the roadway abuts residential areas and Reeths-Puffer High School; the north side is largely undeveloped. M-120 meets the US 31 freeway in Muskegon Township. Holton Road continues northeasterly past Oak Hill Cemetery and turns northerly at Bard Road. The highway curves to the northeast again through Twin Lake to avoid several lakes in the area. The landscape along the road between Twin Lake and Holton, like much of the overall route of the highway, is woodland. Northeast of Holton, those forests transition to farm land as M-120 turns to the north. The highway meets B-31 as it turns north to run along the Muskegon–Newaygo county line. As M-120 continues north along the county line, it runs in Holton Township in Muskegon County to the west and Sheridan Township in Newaygo County to the east along Maple Island Road. West of Fremont, the highway meets an intersection with M-82 and B-86. B-86 runs along the Muskegon–Oceana county line, and M-82 runs along a township line in Newaygo County. North of this intersection, M-120 follows the Oceana–Newaygo county line that divides Greenwood Township from Dayton Township. Maple Island Road enters the south side of Hesperia on Division Street. M-120 terminates at an intersection with M-20 in the middle of the village, from its starting point.〔〔 The Michigan Department of Transportation (MDOT) maintains M-120 like all other components of the Michigan state trunkline highway system. As part of these responsibilities, the department tracks traffic volumes along the highway. MDOT uses a metric called average annual daily traffic, which is a calculation of the traffic along a roadway segment for any average day of the year. In 2009, the highest traffic levels were near the southern terminus at 26,736 vehicles each day. The lowest levels MDOT calculated were in Holton at 5,936 vehicles daily. The section between the south end and US 31, M-120 has been listed on the National Highway System, a network of roads important to the nation's economy, defense, and mobility. The remainder of the highway has not been listed. 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「M-120 (Michigan highway)」の詳細全文を読む スポンサード リンク
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