http://www.mta.me/
Click above. You can "pluck" the lines like a guitar and make music. Kinda nifty!
Conductor (2011) by Alexander Chen.
Conductor turns the New York subway system into an interactive string instrument. Using the MTA's actual subway schedule, the piece begins in realtime by spawning trains which departed in the last minute, then continues accelerating through a 24 hour loop. The visuals are based on Massimo Vignelli's 1972 diagram.
