On Mon, Aug 24, 2020 at 07:28:42AM +0200, Maarten Deen wrote: > On 2020-08-23 22:20, Sarah Hoffmann wrote: > > Hi, > > > > On Sun, Aug 23, 2020 at 09:41:10PM +0200, Maarten Deen wrote: > > > Node 3117603944 was established in 2014 with tags > > > addr:city Sørkjosen > > > addr:housenumber 45 > > > addr:postcode 9152 > > > addr:street Ringvegen > > > > > > Yet, when I query nominatim for Ringvegen 45 Sørkjosen I get no > > > results. > > > > > > What is going wrong here? Sørkjosen itself is found [2] so the > > > problem does > > > not seem to lie in the special character (I wouldn't have thought > > > so). Also > > > found is the street which is named Ringveien [3] in OSM. No idea why > > > the > > > street is called different than the address node, but does Nominatim > > > not > > > index address nodes? > > > > Nominatim only indexes addresses of streets and then searches for > > address nodes based on the address of the street they are attached > > to. > > > > In that particular example, the housenumber got attached to Hovedvegen > > because Nominatim could not find a 'Ringvegen' and used the nearest > > street: > > https://nominatim.openstreetmap.org/ui/details.html?osmtype=N&osmid=3117603944 > > Just one question though (well two acutally): why does it find Hovedvegen as > nearest street and not Reingveien > https://nominatim.openstreetmap.org/ui/details.html?osmtype=W&osmid=282670088 > ?
Hovedvegen is closer. Nominatim computes distance in WSG84 while you look at a Mercator map. That far north there is a significant distortion between the two. > And would it be an idea to make some kind of fuzzy matching when searching > for names? Like "it is better to take a street which has just one different > letter then one where all differ"? This is about consistency between addr:street and names on highways. I think it is much better to fix the OSM data in this case. Nominatim has always taken a stance to rather expose mapping issues than trying to work around them. Sarah _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
