On 25/09/16 23:24, Chris Hill wrote: > Postcodes don't apply to a road, they apply to a collection of delivery > points. Many, many roads have multiple postcodes
Reply on phone went to wrong place ;) If we have buildings on a road, then the postcode goes on every building, but I still think that is wrong. The alternative of putting on road does not work for the reason Chris gives, but grouping all the houses having a common street name and post code cuts down on the volume of duplication in the data. One thing that a postcode is SUPPOSED to avoid is having two different street name elements for the postcode, so at least the sections of a road can be consistent. So yes - 'Postcodes never apply to more than one street', but we may have a different postcode on either side of a street :( The main reason for searching for a postcode is for the routing software, and in those cases identifying the road is useful when the 'centroid' can be some distance of track. If the postcode is only on the buildings then the result can be even worse where roads are in close proximity, so we probably have to put up with duplication on building and the correct adjacent road, although 'postcode for GPS' is common in rural areas - and confuses things further. -- 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 Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb