[Tagging] Tagging a corner address with addr:street:corner=*

[Eugene Alvin Villar]

Hi Friedrich,

On Fri, Jan 16, 2015 at 6:28 PM, Friedrich Volkmann <bsd at volki.at> wrote:

> Here in Austria, we sometimes use corner addresses informally, when
> verbally
> (e.g. on the phone) arranging an appointment, or when describing how to
> find
> a certain shop. But these discriptions are not considered addresses. They
> are never used officially. There are two reasons:
> - Corner addresses are much longer than street + housenumber.
> - Corner addresses are ambiguous if there's more then 1 building or estate
> adjacent to the junction. A T-shaped junction has 2 corners adjacent to it,
> a "+" shaped corner even 4.
>

These two reasons are valid. But imagine for a minute that you are back in
the 1990s (without GPS) in a third-world country and you only have a paper
map. If you are given a restaurant to visit with an address such as #45
Ayala Avenue, you would, in the worst case, go down the whole length of
Ayala Avenue looking for the correct house number. But if instead you were
given Ayala Avenue corner Makati Avenue, then you can go straight to the
intersection and just look around for the restaurant.


> I don't like the addr:street:corner key because it contains a second colon
> for no obvious reason. addr:street:corner is not really a subkey of
> addr:street. I would consider a tag name like addr:street_corner or just
> addr:corner or using a tag for each street (addr:street=* +
> addr:street1=*).
> However, it is probably too late to change that, given that the
> addr:street:corner key is already in use. So I suggest to just document it
> on http://wiki.openstreetmap.org/wiki/Key:addr, maybe with some reference
> to
> the Philippines concerning usage and origin of the tag.


I see your point about the double colons.

Given that it's only my local community that is using this key and there
are no known tools that use this undocumented tag, I don't think it is too
late to change the key.

I prefer addr:corner_street instead of addr:street_corner. After all, the
data to be recorded under the key is the name for a street, not a corner.
addr:corner is not quite easy to understand without the proper context.
addr:street1=* would potentially be confused with the addrN proposal. Would
you and others agree that addr:corner_street is the best choice? If yes,
I'll bring this topic up on our mailing list.

~Eugene
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