Street Usage with Google Ridefinder

Via Mauro, a very nice map hack to visualize the paths of SuperShuttle buses in New York. Close to one of my possible future endeavor, collecting public transport usage data in Barcelona to create context aware applications.

I Started pulling down the XML for NYC every 5 minutes (the minimum update interval for ridefinder) and gathered about 1500 files over the past 5 days. Approximately 25-40 vehicles listed at any point, so at least 40,000 coordinates. The feed does not individually identify each vehicle, so it would be tricky to try and trace points together based on proximity and trajectory. And at five minute granularity, tracks would cross corners, connect over tunnels, etc.