https://wiki.openstreetmap.org/wiki/Tag:highway%3Dtrack

"Track roads are mostly used for agriculture, forestry, outdoor recreation, and similar activities on open land."

Nur weil es nicht asphaltiert ist ist es kein track.

Und ich empfehle das hier:
https://wiki.openstreetmap.org/wiki/Key:highway

"Note that highway=* distinguishes roads by function and importance rather by their physical characteristic and legal classification."

Flo