Bike Data Visualization

This is a cool visualization of bicycle usage in London:

http://www.digitalurban.org/2011/02/london-cycle-flows-sociable-physics.html

On October 4th, 2010, there was a public transit strike in London, which maximized bike usage in the city.

The creators claim that the flashes of light that represent the bikes move in accordance with the actual speed and path of the bikes they represent.

An innovative representation that puts me in mind of graph theory and networking!