Nope, I'm saying all those wiki pages are correct. CDPs are boundaries for statistical purposes, not city boundaries.
But I agree there are too many wiki pages :). On Wed, Nov 14, 2018 at 10:04 AM Martijn van Exel <[email protected]> wrote: > Hmm. > > I guess https://wiki.openstreetmap.org/wiki/United_States_admin_level is > really not correct then where it says: "Census Designated Places (CDPs) are > boundaries maintained by the Census Bureau for statistical purposes. CDPs > should be tagged boundary=census, ideally without an admin_level=* tag.” > > Almost all Utah admin8 are in fact TIGER CDP boundaries: > http://overpass-turbo.eu/s/DFS > > Also, > https://wiki.openstreetmap.org/wiki/Tag:boundary=administrative#10_admin_level_values_for_specific_countries > is > incorrect where it states that admin8 are "state municipalities: cities, > towns, villages and hamlets (infrequent)” > > Furthermore, > https://wiki.openstreetmap.org/wiki/WikiProject_United_States/Boundaries is > also incorrect and suggests "Census-designated places (CDPs) are > statistical, not administrative areas. Project TIGER fixup deletes outdated > CDPs and retags relevant ones from boundary=administrative admin_level=8(or > 7) to boundary=census, no admin_level=*.” > > Finally, there seem to be too many wiki pages covering this :) But that’s > not unique for this topic. > > I guess we have some work to do! > > Martijn > > On Nov 14, 2018, at 8:54 AM, Ian Dees <[email protected]> wrote: > > A friendly reminder that Census's TIGER data we have previously imported > as admin8 polygons aren't actually official city boundaries. They're "Census > Designated Places <https://en.wikipedia.org/wiki/Census-designated_place>" > which are just named "concentrations of people". In some cases the Census > may have gone to the trouble of incorporating city boundary information, > but my guess is that the majority of cases are just "Census blocks that > look like they're part of the city". > > Having said that, there really isn't a good national-level dataset of city > boundaries and Google uses CDP boundaries for their search results... > > On Wed, Nov 14, 2018 at 9:49 AM Martijn van Exel <[email protected]> wrote: > >> Sorry that link is bad. https://cloud.rtijn.org/s/ZLen9D8M3tYaAgj >> >> On Nov 14, 2018, at 8:44 AM, Martijn van Exel <[email protected]> wrote: >> >> I looked at a few place boundaries in Utah and compared with current >> TIGER files.. Definitely needs work.. >> https://www.dropbox.com/s/e1113me8y9t1my5/Screenshot%202018-11-14%2008.42.30.png?dl=0 >> (colored >> = current OSM, grey = TIGER places shape file 2018) >> >> Martijn >> >>
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