My vote goes to not mapping them. They don't exist as entities intrinsically, only as a negative relation of an existing entity
On 20 Aug 2016 1:35 p.m., "Colin Smale" <colin.sm...@xs4all.nl> wrote: > Hi everyone, > > There have been some discussions in the past couple of weeks about > unparished areas, i.e. areas in England which are not part of any Civil > Parish. Civil Parishes are given an administrative boundary relation with > admin_level=10 to represent their entity as an administrative area. But the > unparished areas are not, because by definition they are not an > administrative entity. > > In the East Midlands Alex Kemp has been adding relations for these > unparished areas, only distinguishable from Civil Parish relations by means > of the value of the "designation" tag. This is contrary to our normal > practice and feels counter-intuitive - why add an object to OSM which by > definition does not exist? > > To an extent I can understand his rationale. Without these areas there are > holes left in the coverage at admin_level=10, and often these areas can be > correlated to places or former administrative entities, giving more-or-less > obvious candidates for names in many cases. Doing this is alleged to > improve the behaviour of Nominatim, which sometimes struggles with the > complex structures in the UK compared to many other countries. However they > are NOT administrative entities, and to tag them as such would be wrong. > Words like "tagging incorrectly for the renderer" come to mind. > > So, ahow *should* they be tagged? What should be done with these > unparished areas? Should the existing relations be reverted? Retagged to > something else? Should we document this and encourage other admin boundary > maintainers like me to replicate the pattern across the whole country? > > Best regards, > > Colin > > > _______________________________________________ > Talk-GB mailing list > Talk-GB@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-gb > >
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