a geographical visualization that traces San Francisco's taxi cabs as they travel throughout the Bay Area. the resulting patterns traced by each cab create a living & always-changing map of city life. this map hints at economic, social, & cultural trends that are otherwise invisible. 'Cab Tracker' averages the last 4 hours of cab routes into a ghostly image, & then draws the routes of 10 in-progress cab rides over it. 'Time Lapse' reveals time-varying patterns such as rush hour, traffic jams, holidays & unusual events.
see also gps drawing & pedestrian levitation & gps diary.
[cabspotting.org|thnkx Toshio & Georg]