Many intellectual streams have contributed to the ideology of the American planning movement. Radburn, a partially built, planned, New Jersey settlement, represents the influence of English garden city theories. Radburn's plan was so well designed and rationally organized that it has become a permanent resource for planners who in every generation examine and sometimes adapt it to solve contemporary problems. As a result, it has survived as testimony to the planners' vision of suburban growth. It also represents, however, a neglected promise unfulfilled because of larger currents in American culture.