Houston Texas is working on that with I-10 West (Katy Freeway). I also encounter a similar problem mapping offroad tracks where MANY tracks diverge and run parallel. This is often a result of severe washboard (corrugation) on the track and it’s easy enough to just run parallel to the existing track on fresh ground since there are no constraints. It creates a wide routable area but trying to connect every one is tedious.
This has also been a topic regarding desert features such as dry washes and fluvial braidplains where they are narrowly constrained during low flow and broad features during high flow / floodstage.events.