On 20 February 2014 11:34, Colin Smale <[email protected]> wrote: > one thing I noticed is that > there are two schools of thought regarding Metropolitan Districts. These are > a subdivision of Metropolitan Counties, of which there are six: Greater > Manchester, Merseyside, South Yorkshire, Tyne and Wear, West Midlands and > West Yorkshire.
> I would like to normalise this tagging, and looking at the current usage > above and the wiki[1], propose that the Metropolitan Counties become > boundary=ceremonial, and the Metropolitan Districts become > boundary=administrative, admin_level=8. If the "Metropolitan Districts" have essentially the same administrative powers/functions as a unitary authority, then I think they should be tagged with the same admin_level (i.e. 6) to reflect that fact. We'd then be consistently using admin_level=6 for the highest tier of local government. If they are slighty different (i.e. some powers rest elsewhere) then maybe we could consider using admin_level=7 instead. As far as I can tell, they're definitely not similar to the district councils under a normal county council, so iI think it would be better to avoid using admin_level=8. Ceremonial counties are a completely separate division of the country into Lord Lieutenancy areas -- see http://en.wikipedia.org/wiki/Ceremonial_counties_of_England . So in OSM I'd expect to find these in existence over the whole country, not just for the Metropolitan Counties. Since they have no administrative local-government function, I wouldn't expect them to need or have an admin_level tag. Sometimes they'll be coterminous with a normal county (i.e. the area controlled by a County Council). In which case, I'd expect to see two different relations in OSM, one for each entity. To further complicate things, it seems that in a relatively recent development, there is now a "Greater Manchester Statutory City Region" with a "Greater Manchester Combined Authority" that does have some significant administrative functions. See http://en.wikipedia.org/wiki/Greater_Manchester_Statutory_City_Region . This region is coterminous with the Greater Manchester Ceremonial County, but is a different entity. As above, I'd expect the two identical boundaries to have separate OSM relations. One with boundary=ceremonial and no admin_level tag, and the other with boundary=administrative and an appropriate admin_level. The admin_level value needs to be greater than 5 (English Regions) and less than the value we've used for the individual borough/city areas. So presumably we wouldn't be able to use admin_level=6 for the "Metropolitan Districts" within Greater Manchester, so 6 can be used by the "Combined Authority". Whether we should use 7 rather than 8 for the "Metropolitan Districts" would, I think, depend on how much their powers/responsibility are similar to a normal districts within a normal county, and how much they retain more of the character of a Unitary Authority or other "Metropolitan Districts". Robert. -- Robert Whittaker _______________________________________________ Talk-GB mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-gb
