[Talk-ca] Municipal boundaries

[Paul Ramsey]

Municipalities are creatures of the provinces, the most likely source of
complete, correct municipal boundaries will be the provincial government,
though each municipality will generally know theirs (and sometimes disagree
with neighbours, hence the utility of using a provincial file if available).

Matching of CSDs with municipal boundaries is something StatsCan will
attempt to achieve, but it's by no means a guarantee. If the goal is "good
enough", CSDs are good enough. If the goal is to reflect reality,
provincial data will always be preferable.

e.g.
https://catalogue.data.gov.bc.ca/dataset/municipalities-legally-defined-administrative-areas-of-bc

P


On Tue, Mar 7, 2017 at 6:31 AM, James <james2432 at gmail.com> wrote:

> In purple/black CSD 2016, in gold Gatineau's city limits from their open
> data portal:
> http://i.imgur.com/undefined.png
>
> The CSDs do not match up with actual city bounds
>
> On Tue, Mar 7, 2017 at 9:20 AM, Bjenk Ellefsen <bjenk.ellefsen at gmail.com>
> wrote:
>
>> Just to make sure we are talking about the same thing: Census Divisions
>> are higher level and more regional boundaries. CSDs are municipal
>> boundaries (in OSM, level 8).  http://www.statcan.gc.ca/eng/s
>> ubjects/standard/sgc/2011/sgc-intro
>>
>> Can you give me an example of city limits that don't match a CSD or is
>> not in the SGC? Usually, the standard for municipal boundaries are the
>> CSDs. At least, as far as I know, this is the standard geography. When
>> referring to actual city limits, which geographical classification is it
>> referring to?
>>
>> Sorry for the questions, I am trying to understand what is the
>> classification used if its not the CSDs.
>>
>> On Tue, Mar 7, 2017 at 9:11 AM, James <james2432 at gmail.com> wrote:
>>
>>> Bernie, I've also noticed that StatsCan boundaries seem to be a
>>> generalization of an area vs the actual city limits
>>>
>>> On Tue, Mar 7, 2017 at 9:02 AM, Bernie Connors <berniejconnors at gmail.com
>>> > wrote:
>>>
>>>> Bjenk,
>>>>
>>>>       In NB there are issues with some census boundaries not matching
>>>> with our administrative boundaries. The issue I am aware of was with the
>>>> county boundaries. The census data that is analogous to our county
>>>> boundaries included some significant deviations to prevent a municipality
>>>> from being bisected by a county boundary. Please be careful that there is
>>>> not a similar issue with the CSD boundaries. NB municipal boundaries can be
>>>> downloaded from the GeoNB Data Catalogue For comparison to the CSD data.
>>>>
>>>> Bernie.
>>>>
>>>> Sent from my BlackBerry 10 smartphone on the Bell network.
>>>> *From: *Bjenk Ellefsen
>>>> *Sent: *Tuesday, March 7, 2017 9:51 AM
>>>> *To: *talk-ca at openstreetmap.org
>>>> *Subject: *[Talk-ca] Municipal boundaries
>>>>
>>>> Hello,
>>>>
>>>> Municipal boundaries correspond to census subdivisions (CSD). I have
>>>> seen that many municipalities do not have a boundary yet. Is it ok if I
>>>> start adding some boundaries based on CSDs? Having the boundaries is
>>>> important to make extractions and analysis at the municipal level.
>>>>
>>>> Bjenk
>>>>
>>>>
>>>> _______________________________________________
>>>> Talk-ca mailing list
>>>> Talk-ca at openstreetmap.org
>>>> https://lists.openstreetmap.org/listinfo/talk-ca
>>>>
>>>>
>>>
>>>
>>> --
>>> 外に遊びに行こう！
>>>
>>
>>
>
>
> --
> 外に遊びに行こう！
>
> _______________________________________________
> Talk-ca mailing list
> Talk-ca at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk-ca
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk-ca/attachments/20170307/53b33867/attachment-0001.html>