Data Rules the Day: Live from CNU

<p> I&#39;m at the 18th Congress for the New Urbanism, always a stimulating affair and this year is no exception. We&#39;re in Atlanta, Georgia, although I&#39;ve unfortunately not seen much of the city beyond a few leafy, upscale blocks past the anonymous section of downtown. Right now, I&#39;m waiting for a session on &quot;The Great American Grid&quot; to begin, undoubtedly a topic of some interest to our readers considering the comments inspired by Fanis Grammenos&#39; <a href="/node/41290">dismissal of America&#39;s grid worship</a>. </p>

May 21, 2010, 11:28 AM PDT

By Tim Halbur


I'm at the 18th Congress for the New Urbanism, always a stimulating affair and this year is no exception. We're in Atlanta, Georgia, although I've unfortunately not seen much of the city beyond a few leafy, upscale blocks past the anonymous section of downtown. Right now, I'm waiting for a session on "The Great American Grid" to begin, undoubtedly a topic of some interest to our readers considering the comments inspired by Fanis Grammenos' dismissal of America's grid worship.

The theme of this year's event is "New Urbanism: The Prescription for Public Places," and the relevance of the connection between health and the built environment was quickly and efficiently argued at Thursday morning's keynote. Howard Frumkin and Richard Jackson wrote  a book called "Urban Sprawl and Public Health" six years ago, at a time when very few people were looking at the connection. Today, even the First Lady is talking about it. And no city embodies the connection more literally than Atlanta, where traffic accidents are the leading cause of death for Atlantans ages 3 to 33.

Larry Frank from the University of British Columbia illustrated how far research has come over the six years since Frumkin and Jackson's book, walking us through the new evidence connecting obesity and land use, how modern housing construction increases asthma and allergies, and the hidden health costs of transportation investment. Frank told a moving story of driving past an elderly woman suffering in the 95-degree heat on an unfriendly expressway and realizing that if she died the cause of death would be labeled "heat stroke" rather than "pedestrian-unfriendly design" or "Lack of transit options." In other words, we don't even know the full price of the effect land use decisions have on the humans who inhabit the built environment.

Truly data, not health, was the theme of CNU18. New Urbanism has long suffered from the lack of convincing arguments, and has been stereotyped as a field full of backwards-looking crackpots. Today, New Urbanists have not only a mounting collection of evidence at their fingertips but have brought GIS and data people on staff to make that argument project by project.

"Urbanism is political," said Peter Calthorpe, noted architect and author, in his presentation on climate change metrics. "There is a big obligation in the field of urbanism to change policy, and in order to do that you have to have metrics to show the benefits." Calthorpe has been creating places using New Urbanist principles in the challenging environment of California for decades now, and it was apparent that he sees these new tools for projecting the carbon emissions, health effects, and infrastructure costs of alternatives before they get built as a lifesaver. He wrapped up the session by saying, "Either we can make this case and win the policy changes we need, or good urbanism isn't going to happen."


Tim Halbur

Tim Halbur is communications director for the Congress for the New Urbanism (CNU), the leading organization promoting walkable, mixed-use neighborhood development, sustainable communities and healthier living conditions. He was managing editor of Planetizen from 2008 to 2011.

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