<Table> <Tr> <Td> </Td> <Td> This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations . (January 2013) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations . (January 2013) (Learn how and when to remove this template message) </Td> </Tr> <P> "Edge city" is an American term for a concentration of business, shopping, and entertainment outside a traditional downtown (or central business district) in what had previously been a residential or rural area . The term was popularized by the 1991 book Edge City: Life on the New Frontier by Joel Garreau, who established its current meaning while working as a reporter for the Washington Post . Garreau argues that the edge city has become the standard form of urban growth worldwide, representing a 20th - century urban form unlike that of the 19th - century central downtown . Other terms for these areas include suburban activity centers, megacenters, and suburban business districts . </P> <P> In 1991, Garreau established five rules for a place to be considered an edge city: </P>

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