Tuesday, March 30, 2010

RADICAL URBAN THEORY



Book excerpt (www.radicalurbantheory.com)

What is sprawl, and why?

“The cities will be part of the country; I shall live 30 miles from my office in one direction, under a pine tree; my secretary will live 30 miles away from it too, in the other direction, under another pine tree. We shall both have our own car.

We shall use up tires, wear out road surfaces and gears, consume oil and gasoline. All of which will necessitate a great deal of work ... enough for all.”
—Le Corbusier, The Radiant City (1967)

The Five Components of Sprawl

If sprawl truly is destructive, why is it allowed to continue? The beginning of an answer lies in sprawl's seductive simplicity, the fact that it consists of very few homogeneous components - five in all - which can be arranged in almost any way. It is appropriate to review these parts individually, since they always occur independently. While one component may be adjacent to another, the dominant characteristic of sprawl is that each component is strictly segregated from the others.

Housing subdivisions, also called clusters and pods. These places consist only of residences. They are sometimes called villages, towns, and neighborhoods by their developers, which is misleading, since those terms denote places which are not exclusively residential and which provide an experiential richness not available in a housing tract. Subdivisions can be identified as such by their contrived names, which tend toward the romantic —Pheasant Mill Crossing—and often pay tribute to the natural or historic resource they have displaced.

Shopping centers, also called strip centers, shopping malls, and big-box retail. These are places exclusively for shopping. They come in every size, from the Quick Mart on the corner to the Mall of America, but they are all places to which one is unlikely to walk. The conventional shopping center can be easily distinguished from its traditional main-street counterpart by its lack of housing or offices, its single-story height, and its parking lot between the building and the roadway.

Office parks and business parks. These are places only for work. Derived from the modernist architectural vision of the building standing free in the park, the contemporary office park is usually made of boxes in parking lots. Still imagined as a pastoral workplace isolated in nature, it has kept its idealistic name and also its quality of isolation, but in practice it is more likely to be surrounded by highways than by countryside.

Civic institutions. The fourth component of suburbia is public buildings: the town halls, churches, schools, and other places where people gather for communication and culture. In traditional neighborhoods, these buildings often serve as neighborhood focal points, but in suburbia they take an altered form: large and infrequent, generally unadorned owing to limited funding, surrounded by parking, and located nowhere in particular. The school pictured here shows what a dramatic evolution this building type has undergone in the past thirty years. A comparison between the size of the parking lot and the size of the building is revealing: this is a school to which no child will ever walk. Because pedestrian access is usually nonexistent, and because the dispersion of surrounding homes often makes school buses impractical, schools in the new suburbs are designed based on the assumption of massive automotive transportation.

Roadways. The fifth component of sprawl consists of the miles of pavement that are necessary to connect the other four disassociated components. Since each piece of suburbia serves only one type of activity, and since daily life involves a wide variety of activities, the residents of suburbia spend an unprecedented amount of time and money moving from one place to the next. Since most of this motion takes place in singly occupied automobiles, even a sparsely populated area can generate the traffic of a much larger traditional town.

The traffic load caused by the many disassociated pieces of suburbia is most clearly visible from above. As seen in this image of Palm Beach County, Florida, the amount of pavement (public infrastructure) per building (private structure) is extremely high, especially when compared to the efficiency of a section of an older city like Washington, D.C. The same economic relationship is at work underground, where low-density land-use patterns require greater lengths of pipe and conduit to distribute municipal services. This high ratio of public to private expenditure helps explain why suburban municipalities are finding that new growth fails to pay for itself at acceptable levels of taxation.


other good reads on urban planning, the American Dream, and the life and death of great American cities...














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