The advice below isn't correct. We don't need alternatives, we need to improve the postal_code boundaries to encompass those houses that are on the wrong side of the postal code.
> That being said, using addr:postcode on boundary relations is rather uncommon > practice. Having another relation for Bellem with role=subarea and using > addr:postcode on its administrative centre could be considered as an > alternative. Postal code's on administrative boundaries will throw a JOSM warning when validating. I in fact delete those, they add no value to geocoding at all, and will not be looked at. However, in Flanders, we have almost a complete coverage in terms of postal code boundaries. https://wiki.openstreetmap.org/wiki/Tag:boundary%3Dpostal_code There is still a lot of work in the rest of the country to complete those, but they are perfect for handling border cases. The AGIV/CRAB tool also takes those into account, so if you mess up the postal code, even though everything else is fine, you will see a 'error/wrong' on the completion results. ( see http://aptum.bitless.be/ ) To see how complete this is, you can use overpass: http://overpass-turbo.eu/s/qIO Glenn _______________________________________________ Talk-be mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-be
