[openstreetmap/openstreetmap-website] Search by latitude & longitude succeeds inconsistently (#2366)

dieterdreist notifications at github.com
Tue Sep 3 10:56:07 UTC 2019

it seems you only get results if there are OSM objects close to the
coordinates you search for. Maybe nominatim could add the coordinate pair
as first result regardless of other results?

It also seems optimizable that you search with very low precision like
41.8° N, 12.5° E
and the only result you get is a living street:

Doing more tests, there appears to be a bug in Nominatim, I never find
"more results" than 1 if I search for coordinates. And there's an issue
with priority and scope (precision of coordinates relating to importance of
objects), I tried to "find" Rome by adding the place coordinates, but only
got results of relatively minor pois:

Here's Rome in OSM:

41.893° N, 12.483° E
(finds a place=quarter, Nominatim admin level 15,
https://www.openstreetmap.org/relation/5454237 )

The almost same query, 41.895° N same lon, finds a public artwork:

41.89° N, 12.48° E
finds another place=quarter, https://www.openstreetmap.org/relation/5454276

41.90° N, 12.49° E
Finds a museum (Palazzo delle Esposizioni
https://www.openstreetmap.org/way/51930840 )
although there is also a place=quarter relation for the containing area:

41.9° N, 12.5° E
Finds again a place=quarter mapped as an area (Rione XVIII Castro Pretorio

42° N, 13° E
finds a place=locality

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