[Tagging] admin_boundary with multiple levels / county free citys / Kreisfreie Staedte

Florian Lohoff f at zz.de
Tue Nov 5 15:22:16 UTC 2013


in Germany we have the concept of countys and citys within those
countys. E.g. admin_level=8 within admin_level=6.

Now as an exception every rule follows bigger citys are their own
countys, or dont belong to a county. (Kreisfreie Städte)

Administrative wise these citys take all administrative burden
of the countys and their respective citys, so they are admin_level
6 AND 8.

The problem which arises now is that these citys are currently tagged
with an admin boundary of admin_level=6.
Thus nominatim is not able to find whether this is a real county
or a county free big city. The result is that nominatim returns the name
of the city in the county address detail and no city (due to the lack of 
further admin_level 8 boundarys).

A fix would be an admin_level=6;8 on the boundary or duplicating
the relation.

Florian Lohoff                                                 f at zz.de
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