Not sure if I get it really, they are part of an actual route? I think this would be it then?
https://wiki.openstreetmap.org/wiki/Cycle_routes
That I believe is to mark an actual route, independent on whether it’s going along cyclepaths or whatever.
Kinda proud to say that even though i recognize who this is, i don’t know any song they sang. Probably do when i hear it i guess, but i am not going to look up their songs now.