Public GPS Traces Download

Hi OpenStreetMap Team,
I am a researcher at the University of Utah and trying to use public data traces to do research about trajectory data management. I found your planet.gpx dump, however, it has not been updated for a long time. (The latest dump is in 2013.)

I am trying to find a way to got a full dump of all public GPS traces. Or could you make planet.gpx to be periodically updated as planet.osm?

Thanks a lot!


Maybe some hints are at ?