Taxi-generated art

Cabspotting is a beautiful new project by the San Francisco Exploratorium which traces San Francisco's taxi cabs as they travel throughout the Bay Area. The patterns traced by each cab create a living and always-changing map of city life. This map hints at economic, social, and cultural trends that are otherwise invisible. The Exploratorium has invited a number of artists and researchers to use this information to reveal the invisible dynamics of the city. Link