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The Piedmont Atlantic Megaregion (PAM) is a neologism created by the Regional Plan Association for an area of the Southeastern United States that includes the Atlanta, Charlotte, Nashville, Memphis, Birmingham, Greenville, Piedmont Triad, and Raleigh-Durham metropolitan areas. The megaregion generally follows the Interstate 85/20 corridor. According to Georgia Tech, PAM represents over 12 percent of the total United States population and covers over of land. PAM is just one emergent megalopolis (also known as a megaregion) of eight such regions in the continental United States, so-called because half the nation's population growth and two-thirds of its economic growth is expected to occur within those regions over the next four decades. ==Region== Studies by Virginia Tech and Georgia Tech identify The I-85 Corridor in the Southeastern United States area as an "emergent" megalopolis including the primary cities of Atlanta, Birmingham, Greenville, Spartanburg, Charlotte, Winston-Salem, Greensboro, Durham, and Raleigh with Atlanta being the largest metropolitan area and Charlotte being the largest city. Both studies refer to the area as the Piedmont megalopolis. The Georgia Tech survey defines the region narrowly, focusing on the urban and suburban counties between Birmingham and Raleigh, and the rural counties that explicitly link those urban and suburban counties. The Virginia Tech study proposes a broader definition, which would also include Columbus, Macon, Huntsville, Augusta, Columbia, Knoxville, Chattanooga, the Tri-Cities, Asheville and a number of smaller cities. The western extent of this definition is deeply disconnected from the remainder of the region by the Appalachian Mountains range, and is economically not well-integrated into the greater region. Other locales mentioned in the Virginia Tech study remain disconnected from the region's core, separated by dozens of miles of deeply rural areas. Both reports highlight the "emergent" nature of this possible megalopolis, noting comparatively low urban densities, but also noting a pattern in growth (in the individual, component urban areas) towards each other. , this region (as defined in the Virginia Tech study) has a population of 19 million. The Piedmont Atlantic central Metropolitan Areas are located on the southern Piedmont region which gives the Megaregion its name. The Piedmont is located between the Appalachian Mountains and the Atlantic coastal plain. The surface relief of the Piedmont is characterized by relatively low, rolling hills with heights above sea level between 200 feet (50 m) and 800 feet to (rarely) 1,000 feet (250 m to 300 m). The region has a diverse economy ranging in many different industries. Henry W. Grady of the ''Atlanta Journal-Constitution'' coined the term New South to describe the American South, in whole or in part. The term "New South" is used in contrast to the Old South's plantation system of the antebellum period, to a new Industrial region. Since then Atlanta has grown from a small railway town into a major business, convention and transportation hub. Atlanta is now considered a "Alpha- World City" According to GaWC 2010 at Loughborough University by the Globalization and World Cities Study Group & Network. Charlotte in the Piedmont Crescent has grown to become a major U.S. financial center, and the nation's 2nd largest financial center. Birmingham boom after the Civil War as a major industrial center in the Southern United States, the city's economy has diversified into banking, insurance, medicine, publishing, and biotechnology. The region of Raleigh, Durham, and Chapel Hill is known as the Research Triangle, named for the Research Triangle Park, which is the largest research park in the United States and one of its most prominent high-tech research and development centers. Upstate South Carolina, a region including Greenville, Spartanburg and Anderson has been given foreign investment and has become the fastest growing region in the U.S. state of South Carolina. 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「Piedmont Atlantic Megaregion」の詳細全文を読む スポンサード リンク
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