 The island's master plan, adopted by the New York State Urban Development Corporation in 1969, was developed by the firm of Philip Johnson and John Burgee.The plan divided the island into three residential communities, and it forbade the use of automobiles on the island; the plan intended for residents to park their cars in a large garage and use public transportation to get around.Another innovation was the plan's development of a 'mini-school system,' in which classrooms for the island's public intermediate school were distributed among all the residential buildings in a campus-like fashion (as opposed to being centralized in one large building).