Is it possible to have a notes field added to Segments to identify restrictions and hazards on a segment. It's just that I've built a segment to track my speed on a section of Sustran cycle path. The section is brilliant to sprint and make the legs hurt on when there no other users or dog owners letting their mutts run wild, but obviously a level of caution has to be used if there are others out for a leisure ride.
I don't see such a thing with Garmin Segments. That said, if you had posted a segment like that to Strava, it would probably be flagged as dangerous and the leaderboard for it would be removed.