On Fri, 9 Nov 2018 at 17:08, Adam Snape <[email protected]> wrote: > My conclusion from this is that we can safely map postcodes to the building > where their centroids are placed, perhaps avoiding doing so (or adding > FIXMEs) on brand new developments.
There is one gotcha to that, which is that PO box addresses, and some other large user "non-geographic" postcodes are geo-located in Code-Point Open to the Royal Mail Delivery / Sorting office that handles that postcode's mail. You don't want to be adding those postcodes to the Royal Mail depot. I've got a visualisation of the postcode centroids from Code-Point open at https://osm.mathmos.net/addresses/pc-stats/ which can be helpful for mapping. Once you get your eye in and get used to how postcodes are assigned, you can often (though by no means always) deduce from the centroid, the layout of buildings, and the locations of the surrounding centroids, what set of houses/buildings belongs to each postcode. The blog post at http://sk53-osm.blogspot.com/2013/12/british-postcodes-on-openstreetmap.html (already mentioned above) is a useful read in this respect. Robert. -- Robert Whittaker _______________________________________________ Talk-GB mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-gb
