Makes sense Stewart! On Fri, Feb 9, 2018 at 5:37 PM, Stewart C. Russell <scr...@gmail.com> wrote:
> On 2018-02-08 08:39 PM, Tracey P. Lauriault wrote: > > > > OSM resembles ordnance survey as was part of the original raison > > d'etre When it started in the UK, but that does not preclude the > > possibility of incorporating administrative boundaries such as wards, > > and less formal boundaries such as neighbourhoods, and potentially > > even other cachtment are boundaries such as school boards, and police > > districts and so on. > > The guiding principles of OSM are “How We Map” > <https://wiki.openstreetmap.org/wiki/How_We_Map>: > > > Contributions to OpenStreetMap should be: > > > > * Truthful - means that you cannot contribute something you have > > invented. > > * Legal - means that you don't copy copyrighted data without > > permission. > > * Verifiable - means that others can go there and see for themselves if > > your data is correct. > > * Relevant - means that you have to use tags that make clear to others > > how to re-use the data. > > When in doubt, also consider the "on the ground rule": map the world > > as it can be observed by someone physically there. > > The difficulty with neighbourhoods, catchment areas and other soft > boundaries is that they can't be verified on the ground. The only > reference is the imported source file. Boundaries > <https://wiki.openstreetmap.org/wiki/Boundaries> are assigned a fairly > limited set of tags, and administrative boundaries a very > narrowly-defined set of values > <https://wiki.openstreetmap.org/wiki/Tag:boundary%3Dadministrative>. > Administrative boundaries tend to pile up in Nominatim's address > resolution - I'm supposed to be living in "The Golden Mile, Scarborough, > Toronto, Ontario" (neighbourhood, postal town, city, province), though > no-one uses that level of detail. Also, the Federal neighbourhood points > (imported years ago) don't match municipal neighbourhoods (according to > the city, I'm in Kennedy Park). > > So while municipal boundaries have their place in OSM, a really good > case (and a whole lot of convincing tagging mavens) would need to be > made before those softer boundaries made it into OSM. > > cheers, > Stewart > > _______________________________________________ > Talk-ca mailing list > Talk-ca@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-ca > -- *Tracey P. Lauriault* Assistant Professor Critical Media Studies and Big Data Communication Studies School of Journalism and Communication Suite 4110, River Building Carleton University 1125 Colonel By Drive Ottawa (ON) K1S 5B6 1-613-520-2600 x7443 tracey.lauria...@carleton.ca @TraceyLauriault Skype: Tracey.P.Lauriault https://carleton.ca/sjc/people-archives/lauriault-tracey/
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