deduplication issue when different admin_levels have the same name - Githubissues

osm-search / Nominatim

Open Source search based on OpenStreetMap data

https://nominatim.org

GNU General Public License v3.0

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deduplication issue when different admin_levels have the same name #3426

Closed joostschouppe closed 1 month ago

joostschouppe commented 1 month ago

What did you search for?

https://nominatim.openstreetmap.org/ui/search.html?q=Kerkstraat+45%2C+Antwerpen&countrycodes=be

What result did you get?

A list of addresses in a Kerkstraat 45 in any municipality within the Antwerpen province.

What result did you expect?

The Kerkstraat 45 in the municipality Antwerpen admin_level=8 (which happens to be within the Antwerp province, admin_level=6)

Further details

Including the zipcode or even a wrong nearby zipcode gives the correct address
Using the structured search (with Antwerpen as the "city" name) does not give the correct result. This seems to imply that nominatim seems to consider a province as a potential city. This is clearly wrong in Belgium.

lonvia commented 1 month ago

This will get nicely solved by secondary importance files (#2268). It will still be a bit before this is completely rolled out on the production servers because it only takes effect when areas are updated. Still closing here as "already solved".