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urban community, in Fairfax county, northeastern Virginia, U.S. It lies adjacent to Herndon, 22 miles (35 km) west-northwest of Washington, D.C. The community was developed after 1962 by Robert E. Simon, whose initials form the first syllable of its name; it opened in 1965. Reston, an original concept in urban planning, consists of a number of villages (separated by woodland tracts), each with a "town centre" serving as a retail area. The layout is designed to minimize road traffic by locating a variety of dwellings within a half-mile (1-km) radius of each town centre. The overall community aims to be self-sustaining with shopping centres, industries, schools, and recreational, cultural and medical facilities. Dulles International Airport is nearby. In 1989 Reston experienced an outbreak of the Ebola virus among laboratory monkeys, although the virus was not life-threatening to humans. Pop. (1990) 48,556; (2000) 56,407.