Am Sa., 8. Okt. 2022 um 16:04 Uhr schrieb Davidoskky <davidos...@yahoo.it>:
> > That’s why we decided some years ago to record additional detail about > the structure in the fountain tag. > I wish to add more sense to how these structures are described. The > current tagging scheme has a lot of problems with overlapping tags. > this is called "competing tagging schemes". > > > drinking_fountain (which is somehow a duplicate of fountain=drinking ...) > man_made=drinking_fountain is an exact duplicate of fountain=bubbler; > right, fountain=drinking_fountain is just the same as fountain=drinking, these 2 could be conflated. man_made=drinking_fountain is not required, I agree. > there is no reason for having two equivalent tags at all. > there are reasons, but if they are exactly the same, it is probably better in the long run to concentrate on one. Still it happens frequently in OSM, see for example contact:phone and phone (and similar). > > All of these can already be described, although there could (should > IMHO) be more properties for the details, for example: > Agreed, what I'm most interested in, however, is making sense of the > main tags used; not the specific descriptive values. > that's a pity, because this is where we will likely progress. These properties often are interesting for a specific use case, e.g. the presence of a trough is something dog keepers are interested in. > > > I give precedence to fountains over taps, for a drinking fountain you > could add tap=yes or no, in case of a bigger fountain you would tag the tap > as its own object. > If you use man_made=water_tap both to describe single taps of a large > fountain and the fountain as a whole, then the tag has a double meaning > and it's unclear what it is describing when you see it on the map. > it would seem completely off to tag a large fountain as man_made=water_tap, wouldn't it? Who on earth would believe this is an adequate description? Maybe I do not understand what you are writing, but I do not see a double meaning, a water tap is a water tap? > > I believe our tagging scheme for drinking water is following general > interest here. > Yes, the main interest is knowing where to find drinking water, that > works very well. > What doesn't work is the description of what is delivering the water. > The example from Enno cannot be described unequivocally in a single way, > it can be described in many different ways each missing out on something. > this is because we are yet missing a fountain-value for this kind of fountains (what's the specific, maybe that they serve people and animals?). > > I'm not saying that this tagging scheme has to become the norm for > tagging drinking water, I'm saying that since the option is there to tag > drinking water places in more detail, then this scheme should make sense > and account for all (at least most) cases in a simple and understandable > way. > no, this is not how it works. Usually, if you want to tag something that is not yet covered, you either invent something ad hoc and use it or if you are unsure, you ask and try to find a way or invent a new tag so that it can be adequately represented. You cannot pretend a scheme must be usable for everything, but it should ideally be extendable to cater for what is still missing. > These features are not so widespread; thus the change or deprecation of > one of them shouldn't be a big problem. > which features or tags are you specifically relating to? > You must also realize that this scheme is probably generating a lot of > mistags, since I imagine a lot of people are tagging drinking fountains > as amenity=fountain (that is what I would do and what would appear to me > as most sensible before reading 10 different wiki pages). > I don't have this impression, I saw this in fewer than a handful of cases, from hundreds and thousands of fountains. What happens is they use amenity=drinking_water and so there is no way to tag amenity=fountain. If they used amenity=fountain with drinking_water=yes it wouldn't necessarily be wrong, maybe a little bit misleading because one expects a bigger or more decorated fountain, but you could still find drinking water if you were thirsty... Cheers, Martin
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