[mtmail]

Traces uploaded to OpenStreetMap https://www.openstreetmap.org/traces can be downloaded on https://planet.openstreetmap.org/gps/ The page hasn't been updated since 2013 but still, it's gigabytes of data.

(Update: 848,000 files based on the annoucement https://blog.openstreetmap.org/2013/04/12/bulk-gpx-track-dat...)

https://community.openstreetmap.org/ is the forum to ask where newer data is. I remember a technical discussion by the system administrators about backup page for traces so the full data must be available somewhere.

[waspight]

That openstreetmap data was just what I needed, thanks!