[OSM-talk-be] Correct use of is_in tag

[Joren]

Hi,

I was wondering what's the correct use of the 'is_in'-tag in Belgium (or
Flanders in particular).
When I search on openstreetmap.org for cities, I sometimes see the
detail it is in 'European Union'.

For example, my own city Lier has following search result: " Stadsgrens
Lier, Mechelen, Antwerpen, Vlaanderen, België, European Union"
<http://www.openstreetmap.org/?minlon=4.50586080551147&minlat=51.0726852416992&maxlon=4.64306163787842&maxlat=51.1657829284668>
When I search for city Duffel: "Stadsgrens Duffel, Mechelen, Antwerpen,
Vlaanderen, België"
<http://www.openstreetmap.org/?minlon=4.46484470367432&minlat=51.0725708007812&maxlon=4.57519102096558&maxlat=51.1169281005859>

As you can see, Lier is tagged correctly it is in the EU, Duffel isn't.
There are multiple other examples (Oostmalle, Zandhoven, ...)

When I compare the tags:

For Duffel (http://www.openstreetmap.org/browse/node/85635996/history)

  * is_in <http://wiki.openstreetmap.org/wiki/Key:is%20in?uselang=nl> =
    Mechelen,Mechelen,Antwerpen,Antwerpen,Vlaanderen,Vlaanderen,Belgique,Belgique,Europe
  * is_in:continent = Europe
  * is_in:country = Belgium
  * is_in:province = Antwerp
  * name <http://wiki.openstreetmap.org/wiki/Key:name?uselang=nl> = Duffel
  * + some openGeoDB-tags

vs for Lier (http://www.openstreetmap.org/browse/node/30997655)

  * is_in <http://wiki.openstreetmap.org/wiki/Key:is%20in?uselang=nl> =
    Antwerpen, Belgium, Europe
  * is_in:continent = Europe
  * is_in:country = Belgium
  * is_in:province = Antwerp
  * name <http://wiki.openstreetmap.org/wiki/Key:name?uselang=nl> = Lier
  * + some OpenGeoDB-tags (see links below)

As you can see for the Duffel-node, I tried to fix it by taking the
is_in tags from Lier as example (instead of all those double tags like
Mechelen,Mechelen,Antwerpen,Antwerpen, ...).

Another thing to mention is: what language to use for those tags?
Belgium, Belgique, België? Antwerp, Anvers, Antwerpen ...? etc etc.
I found this wiki https://wiki.openstreetmap.org/wiki/Key:is_in , but
based on those examples I'm still not sure how to tag it correctly.

Thanks in advance.

Kind regards,
Joren
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