from http://wiki.openstreetmap.org/wiki/Nominatim/FAQ
<quote> Why doesn't Nominatim process addr:* tags on buildings[edit] For performance reasons buildings (and other low level features) are not fully indexed, but are instead simply inherit from their parent street. As such many addr:* tags except those directly related to the building are ignored. For instance add:town will never be used - instead the town of the road will be used. </quote> This is why I ask whether it works for you to have postcodes on the address nodes. My experiences is that they are useless for Nominatim. On Mon, May 19, 2014 at 9:35 AM, Lester Caine <[email protected]> wrote: > On 19/05/14 08:06, Marc Gemis wrote: > >> > and in this case, the street and other >> > location data can be provided by tags on a street rather than >> > duplicating that data unnecessarily on every building ... >> >> Surely that’s what associatedStreet relations are for. >> > > > Does Nominatim already supports associatedStreet relations to pick up > > the postcode ? > > When I tried it 8 months ago, it just used it to find a street segment > > (the first one in the relation). It then took the name of that street > > segment as the street name for the address. > > associatedStreet is just another unnecessary layer in the way it is > currently defined. I see little point having the house identifier > duplicated. Where a postcode uniquely defines a set of higher level > relations then that is all we need. Where a postcode is not available, then > a link to a street way has a place, but in many cases creating complex > relations just makes the problem worse. Personally I would prefer to see > editors providing adjacent objects as options for populating some of the > tag elements, so if a postcode is identified it can be duplicated. > > Nominatim does work nicely without the need for the added complication so > I'd suggest at least in the UK we do not use 'associatedStreet' at all. > > > -- > Lester Caine - G8HFL > ----------------------------- > Contact - http://lsces.co.uk/wiki/?page=contact > L.S.Caine Electronic Services - http://lsces.co.uk > EnquirySolve - http://enquirysolve.com/ > Model Engineers Digital Workshop - http://medw.co.uk > Rainbow Digital Media - http://rainbowdigitalmedia.co.uk > > _______________________________________________ > Talk-GB mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/talk-gb >
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