talk-gb-requ...@openstreetmap.org wrote: > Send Talk-GB mailing list submissions to > talk-gb@openstreetmap.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.openstreetmap.org/listinfo/talk-gb > or, via email, send a message with subject or body 'help' to > talk-gb-requ...@openstreetmap.org > > You can reach the person managing the list at > talk-gb-ow...@openstreetmap.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Talk-GB digest..." > > > Today's Topics: > > 1. Re: Authorities, boundaries and admin-levels (Peter Childs) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 13 Jun 2009 18:41:59 +0100 > From: Peter Childs <pchi...@bcs.org> > Subject: Re: [Talk-GB] Authorities, boundaries and admin-levels > Cc: talk-gb@openstreetmap.org > Message-ID: > <a2de01dd0906131041l5dda4bc9h88fef7556e086...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > 2009/6/13 Peter Miller <peter.mil...@itoworld.com>: > >> On 13 Jun 2009, at 09:30, Peter Childs wrote: >> >> 2009/6/11 Ed Loach <e...@loach.me.uk>: >> >> And here is the current OSM guidance:- >> >> http://wiki.openstreetmap.org/wiki/Key:admin_level#admin_level >> >> In order to tie in with NUTS and with guidance for other >> >> countries >> >> within OSM we might want to do the following for England >> >> (Scotland >> >> and Wales would be similar but would skip some levels):- >> >> UK (admin_level=2) >> >> England/Wales/Scotland (admin_level=4) >> >> English regions (North East, East of England etc) (also >> >> admin_level=4 >> >> as per NUTS) >> >> Ceremonial counties - where they exist (admin_level= 5) >> >> County Councils/Unitary Authorities (admin-level=6) >> >> Districts ?(admin-level=8) ?districts / London boroughs / >> >> metropolitan >> >> boroughs. >> >> >> Whats the simplest way of adding a boundary? I notice that Medway does >> not have one, I know ruthley where it should be, but have no idea of >> how to go about adding the relevant relation/way. I'm fine adding >> Roads and smaller stuff but the boundary stuff just throws me. >> >> It is better to use a relation for the boundary rather than way tags which >> used to be the only way to do it. Add the appropriate existing ways >> (rivers/roads etc) to a new relation. You may need to split roads/rivers >> where the boundary diverges. For some sections of the boundary you will need >> to add new ways (where it goes across fields). I just add a >> 'note=administrative boundary' tag to those ways. >> The only source of data we can legally use for the boundary to by knowledge >> is the NPE maps base which shows boundaries as a dotted line if you are >> lucky and if they have not moved in the past 50 years. I also check >> wikipedia as a cross check >> > > Given that Medway is less than 50 years old that could be a problem..... > > > Not necessarily - if you know from local knowledge which areas are included in Medway, you could use the boundaries marked on NPE to guide you as to where the 'new' boundary is - I've used this principle to map some of the 'new' (!974, FGS!) North Yorks/ Cumbria boundary, using the old district boundaries - might not be perfect, but if someone knows different...
Phil James _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
