[Geocoding] OSM Nominatim: additional data source for addresses in the US (and elsewhere?)

[Tobias Wrede]

Hi,

today I tried to look up an address on openstreetmap.org. It was "35516 
galen place, fremont". I got a result from Nominatim in the right spot 
on the map (confirmed by Google Maps). I was then very surprised to not 
find the address in the OSM data. Only the residential "Galen Place" is 
mapped, no individual houses let alone addresses though, nor any 
interpolation.

After some discussion on the German forum 
(https://forum.openstreetmap.org/viewtopic.php?pid=690815) it was 
speculated that Nominatim draws from TIGER database (|SELECT 
place_id||FROM location_property_tiger |in the debug output).

Could someone enlighten me how and in which locations Nominatim uses 
additional data to OSM? What is the priority?

Thanks,

Tobi

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/geocoding/attachments/20180322/051fd099/attachment.html>