I've previously found it valuable to have the ward boundaries in OSM, and am responsible for all the Southwark (not Lambeth) ward boundaries, plus a few Lambeth, Croydon and Bromley. Sometimes the misalignment of open data and OSM data can lead to mistakes. It's not a big deal if they aren't in, but I don't see any reason to say they *shouldn't* be.
If you're going to update them (great!) I think they work better as relations using - where relevant - existing objects like roads where they go down the middle of a road. Otherwise, again, things can get misaligned and otherwise go wrong. So a straight import isn't as good an option as the rather more painstaking manual approach. Tom m: 07866 447 075 w: http://tomchance.org On Wed, 16 Feb 2022 at 11:46, Russ Garrett <r...@garrett.co.uk> wrote: > My controversial opinion is that these shouldn't be in OSM. > > The definitive boundaries are freely available as open data in OS > Boundary Line (although they won't usually appear there until after > the boundaries take effect). The current UK-wide coverage of ward > boundaries in OSM is pretty minimal, although it looks like most of > the old Lambeth wards are in OSM: > > > http://overpass-turbo.eu/?q=W291dDpqc29uXVt0aW1lxIHEgzI1XTsKKAogIG53clsiYsSBbmRhcnkiPSJwb2xpxItjYWwixInEqMSqxKxpxK5sX2RpdmlzacSHxKYid8SjZMSxKHt7YsSfeH19KcSUxY8KxI8gxJ9kecSUPsSUxZNza2VsIHF0Ow&c=BJp6-ioHTL > > As someone who uses this boundary data relatively frequently, there's > no reason why I should use OSM when the data is incomplete, and > boundaries in OSM may have been altered (accidentally or otherwise). > They're not surveyable, the data is freely available elsewhere - I > don't see why it's worth spending our time making sure it's replicated > in OSM. > > Cheers, > > Russ > > On Wed, 16 Feb 2022 at 11:27, David Davis via Talk-gb-london > <talk-gb-london@openstreetmap.org> wrote: > > > > Hello, > > a complete revamp of the electoral wards in Lambeth borough comes into > effect in May 2022, with 25 new wards. > > (See > https://love.lambeth.gov.uk/a-new-political-map-for-the-2022-lambeth-borough-council-elections/ > for info). > > > > I'm guessing the boundaries are available as open data, > > and some bright spark on this list will know how to import it into OSM > in a hugely more efficient way that me trying to manually draw and tag the > new boundaries...? > > (Amusingly, on the map on Lambeth Council's page about it, someone > literally has just drawn the boundaries by hand on top of a screengrab from > OSM!) > > > > Anyone interested this task? > > > > (A few of the existing Lambeth wards were tagged on OSM already, but the > majority actually weren't. But every existing ward boundary is changing in > any case...) > > _______________________________________________ > > Talk-gb-london mailing list > > Talk-gb-london@openstreetmap.org > > https://lists.openstreetmap.org/listinfo/talk-gb-london > > > > -- > Russ Garrett > r...@garrett.co.uk > > _______________________________________________ > Talk-gb-london mailing list > Talk-gb-london@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-gb-london >
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