It isn't super complicated data to capture, I think a single person could fill in a small to medium sized town in an easy weekend.
There's an issue where intersections aren't really mapped in OSM (at least in terms of priority, turn restrictions are increasingly captured), the pieces are all well modeled but there isn't much information about how they fit together.
There's an issue where intersections aren't really mapped in OSM (at least in terms of priority, turn restrictions are increasingly captured), the pieces are all well modeled but there isn't much information about how they fit together.