On Fri, Dec 06, 2019 at 11:54:08AM +0100, Peter Elderson wrote: > Andy Townsend <ajt1...@gmail.com>: > > > Michael Behrens: > > > > > > There is no unique way to tag roles in hiking route relations > > > > I'd suggest making it clear that that table is currently for way members > > only - it doesn't mention node members (start, end, marker, etc.). This > > may be deliberate, or you just haven't expanded it yet, but I'd definitely > > mention node members. > > > > Also, i guess backward and forward roles are for ways only, the other > roles are more suited for relation members. Or not? Could I enter all the > ways of a 3 Km medieval castle excursion to a viewpoint into the hiking > relation holding the ways of the main route, each with the 'excursion' > role? I think this should be explicit. > > It seems to me that use of these roles leads to relations containing > non-contiguous trails. I would call those relations collections rather than > routes. Processing non-contiguous routes presents extra challenges for > processing such as exporting routes and making elevation profiles.
I have to strongly disagree with all of that. 1. Having alternatives and excursions does not make a route non-contiguous. It just makes it non-linear. 2. It is perfectly normal for a route to be non-linear. If the alternative route is marked, it's part of the route and should be mapped accordingly. 3. Non-linear routes are not a problem for processing per-se. The point about the processing you have now made repeatedly in different contexts. You seem to have come to this conclusion because waymarkedtrails does not implement non-linear routes. As much as it honors me that you consider waymarkedtrails the gold standard for what is doable with route relations, I have to disappoint you here. Non-linear routes are simply not implemented because of lack of time. If I'd have to state a rule what makes processing easier then it would be: avoid subrelations unless the relation is so large that it is a pain to handle in the editor. Kind regards Sarah _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
