cabspotting

Intersections

Each cab's path is represented by a series of crosses. The faster the taxi is going, the larger the size of the cross.

Bay Area, Twelve Hours:

San Francisco, Four Hours, 30 minute lines:

 

Speed Overlay

Each cab's path is represented by a line. The color of the line depends on the speed of the taxi - red is fast, white is slow.

Four hours of activity:

Brought to you by The Exploratorium, Yellow Cab, and Stamen Design