Tracking Taxis ~ Chronological Urban Heatmap

Thanks to Aid Watch development economist William Easterly's piece Miracles of spontaneous order: where to get a cab around NYU for pointing to this lovely NYTimes infographic on Tracking Taxi Flow Across the City! With data provided by Sense Networks mashed up on Google's map, Matthew Bloch, Ford Fessenden, and Shan Carter create this interactive heatmap showing taxicabs over time...