Hello. Thanks for mapping on this project.
About the traces you tagged as track.
Please take into consideration that a trace through a rural area connects also other highways  (over longer distances, even on adjacent task ) can be tagged as unclassified, 
A track is to be used only for access to farmland, water, woodlands
Best regards

See this wiki
https://wiki.openstreetmap.org/wiki/Key:highway#Roads