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Why are Nominatim addresses in the city of Bolzano partially wrong and how can be solved?

1

Hi all!

as mentioned in the title, I'm running into the issue of having wrong display_name for addresses in the city of Bolzano (Italy). To be fair, only a small part of the address is incorrect.

Let's see with an example: "via Torino 20 Bolzano" (place id 29088043) is resolved as "20, Via Torino, Europa-Novacella, Bolzano, Appiano sulla strada del vino, Bolzano, Trentino-Alto Adige, 39100, Italia" which is mostly correct, the only error is "Appiano sulla strada del vino" in the middle which is absolutely wrong: Appiano is a small town near Bolzano.

How can this problem be solved?

Thanks in advance

asked 17 Jul '21, 11:37

mmaridev's gravatar image

mmaridev
26113
accept rate: 0%


One Answer:

3

This looks to be due to use of the tag place=municipality on the node for Appiano. See the detailed breakdown provided by Nominatim.

I'm not familiar with this tag, but it may be quite widely used in Italy. Recently Sarah Hoffmann (lonvia), the Nominatim maintainer gave a talk in which she broke down some of the problems with tagging which affect Nominatim's results. This may be such an example.

answered 17 Jul '21, 13:48

SK53's gravatar image

SK53 ♦
28.1k48268433
accept rate: 22%

Dear SK53,

thank you for your answer. I edited the node of Appiano and downgraded to the "town" entity and Nominatim now provides street name correctly. Thank you!

(17 Jul '21, 14:43) mmaridev