2009/7/3 Kev js1982 <[email protected]>: > Streets certainly get postcoded differently on opposite sides of the > street - one just has to look at the street name signs (as used by > Rushcliffe BC) to see that. > Also it's certainly possible where one street has multiple postcodes > that the splits happen in different places on different sides of the > street) it's even possible that two houses adjecant to one another > connected to the street by a shared use path have different postcodes. > As postcodes are related to dwellings and businesses but not streets > (at least in the uk) would in not make more sense to add the postcode > and associated properties into a single relation? Adding area, > district, and sector to the postcode would make it trivial to find > every property in ng ng2 or "ng2 7".
No need for relations. Just tag each address with addr:postcode or postal_code and all is sorted. And in case you haven't seen it: http://dev.openstreetmap.org/~random/postcodes/?layers=000FBT0F this is taken from those two tags as applied to nodes or ways. > > On 03/07/2009, Steve Hill <[email protected]> wrote: >> On Fri, 3 Jul 2009, WessexMario wrote: >> >>> A lowest level postcode (SN13_2PQ) is not unique for a node, as multiple >>> dwellings will have the same postcode, so this leads to having multiple >>> tags for what is essentially a single data item, a postcoded area of land. >> >> It should be unique to a way (or part of a way) though. >> >>> Marking postcodes on a way could be problematic, as there can be >>> different postcodes on opposite sides of a road. >> >> Really? I've not come across that - if a street has more than one >> post code, doesn't it just get split along its length? >> >> If you really do get different post codes on opposite sides, you could >> have a postcode:left and postcode:right type pair of tags though. >> This really doesn't work. Postcodes are applied to addresses, not streets. Just tag the address if you know it. It's still quite useful to tag streets with the known prefix though -- I've done that a lot in London where the SW15 part is printed on most street signs. Dave _______________________________________________ Talk-GB mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-gb
