We explored visualizations of GPS data from Yellow Cabs taxis in San Francisco. In these frame-by-frame maps of the locations of cabs in the Bay Area, the city pulses like a beating heart.

Among the first uses of realtime data in a visualization of any kind, cabspotting was shown in the Design and the Elastic Mind exhibition at MoMA in 2008, was shown at NighTime Dreamreal at the Shanghai Power Station of Art (November 2013–March 2014), and is now in the permanent collection of MoMA.

Scott Snibbe originally invited us to collaborate with him on this project. It was part of a research project called Invisible Dynamics, sponsored by The Exploratorium of San Francisco.