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The Great Lakes Megalopolis consists of the group of North American metropolitan areas which surround the Great Lakes region and Saint Lawrence Seaway. It is mainly within the Midwestern United States, the Southern Ontario area of Canada, along with large parts of Pennsylvania, New York, and Quebec. It is the largest and most populated megalopolis in North America. The region cuts a wide swath from Minneapolis to Pittsburgh and extends from the Duluth-Superior corridor, through the Green Bay-Kewaunee-Oconto corridor, the Milwaukee-Chicago corridor through the South Bend-Lansing-Kalamazoo corridor to the Detroit–Toledo corridor, and the Quebec City – Windsor Corridor and includes Cleveland, Akron, Erie, Fort Wayne, Grand Rapids, Ottawa, and Buffalo, reaching as far east as Rochester and Johnstown, and as far west as the Twin Cities. The region had an estimated population of 59,144,461 as of 2011. It is projected to reach a population of approximately 65 million by 2025. There is substantial overlap between the megalopolis and the once-heavily industrial region known as the Rust Belt; however, the megalopolis and the Rust Belt are not entirely coextensive, and some metropolitan areas may be considered part of one region but not the other. ==History of the concept== The region was partially outlined as an emergent megalopolis in the 1961 book ''Megalopolis: The Urbanized Northeastern Seaboard of the United States'' by French geographer Jean Gottmann. Gottmann envisaged the development of other megalopolies in the U.S.: BosWash, from Boston to Washington, D.C., Chipitts from Chicago to Pittsburgh, and SanSan, from San Francisco to San Diego. In 1965, Herman Kahn speculated about the future of the three megalopoleis in the year 2000, referring to their names as "half-frivolous" and not mentioning Gottman. In the 1960s and 1970s, urban planner and architect Constantinos Doxiadis authored books, studies, and reports including those regarding the growth potential of the ''Great Lakes Megalopolis''.〔(Cities: Capital for the New Megalopolis ).''Time magazine,'' November 4, 1966. Retrieved on July 16, 2010.〕 Doxiadis envisioned Detroit as the central urban area in the Great Lakes Megalopolis. According to him, the megalopolis extended "from Milwaukee and Chicago to Detroit, Pittsburgh and Buffalo and into Canada from Windsor to Montreal and Quebec."〔〔Doxiadis, Constantinos. (1970) ''The Great Lakes Megalopolis.'' Doxiadis Assoc.〕 The Virginia Tech Metropolitan Institute's ''Beyond Megalopolis'', an attempt to update Gottmann's work, outlined a similar "Midwest" megapolitan area as one of ten such areas in the United States (Canada is discussed tangentially).〔(MegaCensusReport.indd )〕 Over 200 million tons of cargo are shipped annually through the Great Lakes.〔(【引用サイトリンク】title=About Our Great Lakes -Great Lakes Basin Facts- NOAA Great Lakes Environmental Research Lab (GLERL) )〕〔〔U.S Army Corps of Engineers (January 2009).(Great Lakes Navigation System: Economic Strength to the Nation ). Retrieved on April 11, 2011.〕 Half the nation's population growth and two-thirds of its economic growth is expected to occur within the megaregions over the next four decades. The America 2050 project has identified eleven Megaregions of the United States, including the Great Lakes Megalopolis.〔(America 2050: Megaregions: Great Lakes. ) Regional Plan Association.〕 In Canada, parts of the region are also referred to as the Quebec City–Windsor Corridor. 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「Great Lakes Megalopolis」の詳細全文を読む スポンサード リンク
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