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California's major urban areas normally are thought of as two large megalopoleis: one in Northern California and one in Southern California, separated from each other by approximately 350 miles (the distance from Los Angeles to San Francisco), with sparsely inhabited (relatively) Central Coast, Central Valley, and Transverse Ranges in between. Other ideas conceive of a single megalopolis encompassing both North and South, or a division of Coastal California vs. Inland California. These regional concepts usually are based on geographic, cultural, political, and environmental differences, rather than transportation and infrastructure connectivity and boundaries. ==Notable conceptions of a California megalopolis== Futurists Herman Kahn and Anthony Wiener coined the name SanSan as an allusion to San Diego and San Francisco (along with BosWash and Chipitts) in ''The Year 2000''〔ISBN ISBN 0-02-560440-6〕〔http://books.google.com/books?id=egAEAAAAMBAJ&pg=PA11〕 for a California megalopolis along the coast. The coastal emphasis does not conform to subsequent growth patterns extending to Metropolitan Sacramento and the Inland Empire. (Beyond Megalopolis ), by Virginia Tech's Metropolitan Institute, defines two megapolitan areas which extend from California into Nevada: NorCal, which includes the Reno, Nevada area, and the Southland which encompasses Greater Los Angeles, the Inland Empire, and San Diego and includes Metropolitan Las Vegas. America 2050,〔http://www.america2050.org/about.html〕 an organization sponsored by the Rockefeller and Ford Foundations, lists 11 megaregions in the United States and Canada.〔http://www.america2050.org/megaregions.html〕 This includes the Southern and Northern California megaregions in which Southern California includes Greater Los Angeles, San Diego–Tijuana, the Inland Empire and Las Vegas Valley.〔(【引用サイトリンク】url=http://www.america2050.org/southern_california.html )〕 None of the invented terms for a California megalopolis have ever achieved popular usage, as there has been little need for the general public to distinguish a California megalopolis from California as a whole or particular metropolitan areas such as the San Francisco Bay Area ("Bay Area") or the Greater Los Angeles Area ("L.A."). 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「California megapolitan areas」の詳細全文を読む スポンサード リンク
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