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
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