Howard as a model. This neighborhood has retained its special character and has been listed on the National Register of Historic Places. Construction for Sunnyside started April 1, 1924, two months after it was purchased from Pennsylvania Railroad Company. Because of the high costs of urban land, many neighborhoods were congested and run down, making it unhealthy and an unenjoyable place to live in. Sunnyside was different; the land was not being used by the railroad company so it was cheap. Stein had a very important job with Sunnyside. He was responsible not only for developing a more generally affordable neighborhood, but also making it a healthy and enjoyable place to live. He designed more natural green space with much light, resulting in a serene living environment. In between all the apartment buildings there was a central public open space, such as a play ground or mini park. The park was then surrounded by individual private gardens that went to the ground level of the apartments. Gardens were also placed on the front of the apartment buildings between the road and the building. This helped break up the long lines of houses and also created an appealing mood. Stein needed as much space as possible to incorporate gardens and open areas. Because of this, he had to place the garages by themselves separate from the apartment buildings. The ending outcome of Sunnyside was very successful. In 1929, Stein and Wright collaborated with Kenneth Weinberger on the plan for the Radburn community in Fair Lawn, New Jersey, roughly double the area of Sunnyside. The vision for Radburn was of an integrated self-sustaining community, surrounded by greenbelts, specialized automotive thoroughfares (main linking roads, serviced lanes for direct access to buildings, and express highways), and a complete separation of auto and pedestrian traffic. These thoroughfares were called superblocks. This was because the block is very large with a very large road surrounding the houses within. Stein knew that the community could not survive without a road system but he also didn't want the roads dominating the land. Instead, the superblocks make the main focus on the yards and the gardens surrounding the buildings. This grand vision was informed by the lessons of Sunnyside, and by the comparable city-planning work of Ernst May in Germany (researched by a young Catherine Bauer), but the experiment was never completed because of the economic pressures of the