> I cant follow the logic of "Visibly signed things go into 'ref'", since >that would seem to mean we don't need lcn_ref tags as these are visible >signed.
IMHO The ref key is for the primary key (so in these cases against the highway). It keeps it simple for mappers and is verifiably the ground truth - AKA what one should see if travelling or being routed along that way. As a bonus this is then used *now* by standard renderers/routers/data users with no extra effort. So for a 'road' it's road signs, although it may have signs for subsections of users such as cyclists. Then for ways with multiple uses/routes then subsidiary ref keys should be namespaced to avoid conflicts or suggesting the ref is related to the wrong key, hence prow_ref and ncn_ref/lcn_ref/rcn_ref (bicycle route refs probably best set once on the relation anyway). And then specialist data users can do more specific things e.g. OSM Cycle Map or SomeoneElses's UK Style using data in the additional keys. I hope that makes sense. -- Be Seeing You - Rob. If at first you don't succeed, then skydiving isn't for you. ________________________________________ From: David Groom <revi...@pacific-rim.net> Sent: 10 January 2017 01:17:24 To: Talk-GB@openstreetmap.org Subject: Re: [Talk-GB] tag prow_ref The prow:ref tag emerged from a discussion I started on this list about the problem of using the ref tag to refer to PROW references. The specific problem was that some highways were also designated footpaths / bridleways, and so if the ref tag was used to tag a rights of way reference it was given the same rendering priority on these ways as a road reference. There was also no way to distinguish between a ref tag which was for a road reference, and a ref tag which was for a prow reference on that road. Thus the prow:ref tag was suggested. At a later stage I noted the prow_ref tag started to be used. I did not follow the discussion / reasoning behind that, but I find it hard to believe that we need both a prow_ref tag and a prow:ref tag. So I assume the prow_ref tag supoerceeded the prow:ref tag, but for the reasoning outlined in the first paragraph I would not think it helpful to simple use the plain "ref" tag on the Isle of Wight. I cant follow the logic of "Visibly signed things go into 'ref'", since that would seem to mean we don't need lcn_ref tags as these are visible signed. David ------ Original Message ------ From: "Robert Norris" <rw_nor...@hotmail.com> To: "Talk-GB@openstreetmap.org" <talk-gb@openstreetmap.org>; "David Groom" <revi...@pacific-rim.net> Sent: 10/01/2017 00:36:41 Subject: Re: [Talk-GB] tag prow_ref >If I remember correctly the use of "prow_ref" tag is normally when the >reference is taken from the Council ROW information documents that are >compatible with OSM. >'ref' is used when the Reference itself is on the signed on the ground. >Thus for the Isle Of Wight, it is probably recommended to use the 'ref' >field since I believe most if not all ROW on the IOW have the reference >on the sign posts. >Whereas for most of the rest of England and Wales, only rarely are the >ROW references put on sign posts (I don't know of anywhere else that >does it consistently compared to the IOW). The only times I normally >see ROW references are on permissive notices or temporary route >diversion notices. >Thus similar to the recommendation for 'C' road references vs A/B >Roads. Visibly signed things go into 'ref' so used for A/B roads. >'official_ref' or similar should be used for C roads. > >-- >Be Seeing You - Rob. >If at first you don't succeed, >then skydiving isn't for you. > >________________________________________ >From: David Groom <revi...@pacific-rim.net> >Sent: 09 January 2017 23:56:51 >To: Talk-GB@openstreetmap.org >Subject: [Talk-GB] tag prow_ref > >Has any one got any instances of any providers of OSM data using the >prow_ref on rendering / routing > >I recently pointed out to a mapper that if the reference numbers he was >adding to footpaths were official PROW reference numbers it was >recommended to use the "prow_ref" tag rather than the plain "ref" tag. >He's now amended his entries to prow_ref but is a little disappointed >it doesn't show up on the main map, OsmAnd, or Maps.me. > >I have pointed out to him that OSM is mainly a provider of data, not >maps, so not everything is rendered on the man map, but it would be >nice if I could point him in the direction of where it is being used, >other than my own web site and custom OsmAnd file. > >Thanks > >David > > > _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
