Sunday, November 11, 2012

The Evolution of Urban Planning in 10 Diagrams


The role of people in the urban planners playbook



Le Corbusier’s plan may not have had such power if he hadn’t put it on paper. The French modernist architect wanted to reform the polluted industrial city by building “towers in a park” where workers might live high above the streets, surrounded by green space and far from their factories. His idea was radical for the 1930s, and it was his diagrams of it that really captured the imagination.

"It swept everyone along," says Benjamin Grant, the public realm and urban design program manager for the San Francisco Planning and Urban Research Association. "They were such compelling drawings of such a compelling idea."

Le Corbusier’s iconic plan for his "Ville Radieuse" was an obvious choice when Grant and SPUR began to curate a new exhibition, "Grand Reductions: Ten diagrams that changed urban planning." Le Corbusier's tidy scheme for "towers in a park," drawn as if on a blank slate, would influence planners for decades to come. Some of the other diagrams in this survey are a bit more surprising.

The exhibition’s title – Grand Reductions – suggests the simple illustration’s power to encapsulate complex ideas. And for that reason the medium has always been suited to the city, an intricate organism that has been re-imagined (with satellite towns! in rural grids! in megaregions!) by generations of architects, planners and idealists. In the urban context, diagrams can be powerful precisely because they make weighty questions of land use and design digestible in a single sweep of the eye. But as Le Corbusier’s plan illustrates, they can also seductively oversimplify the problems of cities. These 10 diagrams have been tremendously influential – not always for the good.

"The diagram can cut both ways: It can either be a distillation in the best sense of really taking a very complex set of issues and providing us with a very elegant communication of the solution," Grant says. "Or it can artificially simplify something that actually needs to be complex."

Over the years, some of these drawings have perhaps been taken too literally, while others likely lie behind some of your favorite spots in your city. "Even if you don’t know the diagram," Grant says, "you might know the places that the diagram inspired." SPUR shared these images from the exhibition, which opened this week.

If you happen to live in San Francisco, you can also visit the show in person at the SPUR Urban Center Gallery (654 Mission Street) through February (oh, and it’s free!).

Full Story:  Ten Diagrams showing the history of Urban Planning

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