Mahir Yavuz has created a number of data visualizations based on people’s movements in public spaces. So far he has created a series of prints and a video animation based on taxi trips around Vienna and its suburbs.
Fascinating look at the public use of space, although “One Day of Taxis” is by far the most striking (see image inset). Full info on the project can be found at casualdata.com.
I have embedded “One Day of Taxis” using visualizing.org’s Visualizing Player below, although the player is sometimes a bit glitchy (as in it doesn’t appear!). If the player doesn’t appear below, you can get there here.