On Sun, 27 May 2007, Mike Collinson wrote: > Answering David's posting very obliquely, how close are we in the > current search engine(s) to being able to geodecode at the postal > district level? (i.e the LS21 part of LS21 3LW; 3,094 districts > [http://en.wikipedia.org/wiki/UK_post_codes]). This would be a more > modest and achievable interim goal and useful for searching features in > a roughly 5-10km radius. Good enough at least for now??
The rails port uses the npemap api to do the uk postcode geocoding. Currently, the npemap stats (http://www.npemap.org.uk/stats/) are: Prefixes collected: 2831 Prefixes liberated: 94% Sectors collected: 7762 Sectors liberated: 74% (Where for OX2 1AB, the prefix is OX2 and the sector is OX2 1) We believe that most of the missing prefixes are in northern ireland (for which the maps we do have aren't ready for use, but we might be asking for help from OSMers with fairly soon), and the missing sectors are a mix of northern ireland and scotland. Nick _______________________________________________ Talk-GB mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk-gb
