have since been listed. In Sheffield in 1958, the city architect, Lewis Womersley, designed the Park Hill Estate. The product of an entire slum clearance, three times the size of the Unité, dwellings were housed in a series of high-rise structures connected by external decks. These 'streets in the air' are wide enough to incorporate bicycles and milk floats. Initial success came because whole streets were moved into adjacent dwellings on the new scheme. Harold Macmillan said it would "draw the admiration of the world". In Scotland, the Department of Housing for Scotland encouraged Local Authorities to build more unified and open schemes. The Functional City prescribed the separation of industrial zones from residential ones by parkland. This concept suited the regeneration of industrial decay in Scottish cities. From 1956 the Hutchesontown Gorbals area of Glasgow was redeveloped. The architect Robert Matthew designed one of the four areas using 18-storey blocks on a north-south axis that ignored local street patterns. The Golden Lane Estate in London was designed by Chamberlin, Powell and Bon, who also designed the adjacent Barbican Estate. It has a variety of dwellings and a good provision of supporting community buildings. Like the Unité it has a terrace on the roof. The Smithsons (Alison and Peter Smithson) were against the four functions explored for the Functional City, renaming them House, Street, District and City. In the Golden Lane development the House became the family unit, the Street was an elevated access deck but the District and City lay outside the project's boundaries. Their work was never built at Golden Lane, but these ideas can be viewed in their book "Urban Structuring". The Americas Lúcio Costa's conception of the plan for Brasília saw the city as a manifestation of the Functional City. Like Le Corbusier's Ville Radieuse, it was seen as a method of imposing order, progress and stability to Brazil's new capital. Like Le Corbusier, Costa and Oscar Niemeyer aspired to produce a city based upon equality and justice. In a variation of the Functional City, Sert designed married-student housing for Harvard University in 1964. Known as Peabody Terraces it was made up of three main towers set in lawns and sheltered pedestrian routes. It avoided the usual vacuum at the base by grading the scale between the towers and the lawns. The rest of the world In Japan in 1957, Kunio Maekawa designed the Harumi Apartment