Tracks: you should not be mapping things for routing, much like not mapping for a renderer. Your tracks cannot be verified by someone else as they don't exist on the ground. 

See https://wiki.openstreetmap.org/wiki/Good_practice#Map_what's_on_the_ground for useful info on this. 

Please review those you have put in. 

Hedges vs scrub. It's tricky, and sometimes controversial whether a narrow strip is a barrier=? or area of scrub, trees, etc. I prefer a barrier, but wont push my bias here. 