Kevin B. Chen
Eric Fischer
San Francisco area traffic speed map, 2011
Digital print

Black is less than 5 mph.
Red is 5 to 15 mph.
Yellow is 15 to 25 mph.
Green is 25 to 35 mph.
Blue is faster than 35 mph.

Data from Cabspotting.

Here Be Dragons: Mapping Information and Imagination

October 21, 2011 – January 14, 2012
Intersection for the Arts
San Francisco, CA
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