In Afghanistan, there are continuous highways that have roundabouts as junctions. The roundabouts, also have the same Ref because they are part of the continuous highway. For an example check ref=NH0101 ref=NH0102 ref=NH0103 or ref=NH0104
> On Aug 23, 2020, at 10:35, Mateusz Konieczny via Tagging > <[email protected]> wrote: > > > > > > Aug 23, 2020, 15:23 by [email protected]: > On Sat, Aug 22, 2020 at 01:28:07PM +0200, Mateusz Konieczny via Tagging wrote: > Aug 22, 2020, 12:17 by [email protected]: > > > On Sat, Aug 22, 2020 at 12:09:14PM +0200, Mateusz Konieczny via Tagging > > wrote: > > > >> I would expect roundabout to be split in parts where > >> ref is applying and parts where it is not applying, in other words > >> without any special handling and tag it as usual. > >> > > > > But the point is that on a roundabout the "name" references the name > > of the _roundabout_ not one of the streets connected to it. > > > Yes > > > Same should apply to ref as it will reference the Roundabout > > why? > > 1. How do you tag a reference number for a roundabout when suddenly > the ref contains a ref of one of the streets? > Can you give example of roundabout with its reference number? > > For now it feels like a theorethical excercise. > > I never considered such case as I have never encountered or > heard about junction with its ref. > > But there are named junctions, and I would look there for inspiration. > 2. Inconsistency - Some informations on the roundabout contain > informations about itself, and some are just copied over from > attached streets. > So it is about case where road has its own reference number > and junction has its own reference number, separate from > reference number of road routes? > > Yes - We should be consistent that an object carries informations about > itself and ONLY itself and not carry on some information of related > objects. To glue objects together or describe their relation > we typically use relations. We do this in Germany a lot - So primary > roads typically have relations carrying all road segments including > the roundabout. > In Poland road route continues through roaundabout and roaundabout way > is part of such route. > > Correct - In Germany - at least for "Straßen NRW" thats the same. The > road surface of the roundabout is part of the Road through it. But > nevertheless - OSM has had a different Data Model to address/reference > roundabouts itself to be able to do landmark routing e.g > > "Take 1st exit at the Hampstead Roundabout, then take the 2nd exit at > the Foobar Roundabout". > > For this to work you have to put the information about the roundabout > itself somewhere. This has been documented for ages to be the > way carrying the junction=roundabout which has a name tag on its own. > > So using ref on the roundabout for either the road, or a reference > of the roundabout breaks the assumptions that informations on the > junction=roundabout only refer to the roundabout. With this concept > it may sometimes refer to one or more roads which are connected to the > roundabout. This basically makes the information useless. > > Flo > -- > Florian Lohoff [email protected] > UTF-8 Test: The 🐈 ran after a 🐁, but the 🐁 ran away > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging
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