Changeset: 29477909
Fix taginfo similar key challenge - fix footway
Closed by flohoff
Tags
created_by | JOSM/1.5 (8085 en) |
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Discussion
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Comment from ij_
Now this edit in particular highlights why you definately shouldn't be doing this at all!
As these ways or at least on of them is likely to reappear once the construction site is gone and obviously you didn't know because you're not a local mapper! But I also understand that nobody put his/hers educated guesses about post-construction site status into note or FIXME, so I understand that you might even try to put the blame on locals not helping your housekeeping :-(.
To me, on the otherhand, it's indication that you shouldn't be doing what you did at all with was:*=* as your edit is clearly harmful here!
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Comment from ij_
I want to stress again (to soften the tone here) that I find housekeeping in general good and support what you're doing with the namespace in general. It's just that was:* and perhaps old_* is sort of exception which you should be extremely careful with :-).
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Comment from flohoff
I am very careful about certain old_* tags e.g. old_name because those are processed by nominatim. But when there is a way ONLY consisting in was:* or unused old_* stuff i am not careful. I care about preserving semantics and information so copying all tag information on feature disapperance to was:* tags is simply abusing the namespace. All this information is preserved in feature history available from hundrets of channels. The REAL information here would be - Why has the feature disappered - when did that happen - and not to remap it from secondary information which is probably outdated.
That information should stay - but not tags preserving redundant history which no data consumer needs.
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Comment from ij_
Good to know about "old_*" but did you know that I find them useful even after a highway is gone completely as somebody might make an emergency call and use the old name (the only thing he/she might know as no longer local but only visiting) as the location indicator. How can one decide that's no longer a indicator for something if somebody is still using it even if the original feature is long gone already (this applies to names only, not a general "keep all history" argument here!). The official maps at least in Finland (perhaps in other countries too) seem to _immediately_ forget this kind of info and I find OSM would have lot to offer in this kind of knowledge if we don't drop old namings without extremely good justification!
I thought we're only mapping what's on the ground, not "why" it's on the ground. Or "why" it isn't! How can I even know that? Perhaps some decision in some city council or whatever to remove it, who knows... Why'd you even want to know that? Hopefully not because your housekeeping task depends on that information? I said I'm guessing what will happen in the future, not that I know. I didn't even do that guess about the construction site thing until now when I looked into your changeset where you removed it because it was enough for me to note that it's no longer on the ground (for whatever reason). I think such housekeeping approach that depends on a local mapper guessing future using local knowledge is broken to begin with (OSM should definately require that!).
Or the "when" question, how do I know? I only noticed it around the time when I changed that to was:* (or remembered to put that observation to OSM, might not be so easy to remember once one surveys a rather long route nearly every weekday and relies mostly on memory alone to carry such details about removals). So it was removed at earliest when I changed but requiring "when" is again requiring me to input non-ground information.
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Comment from ij_
I mean "OSM should definately not require that" (guessing obscure future events). :-)
Ways (2)
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