[talk-au] Admin_level discussion for Australia

[Sebastian Spiess]

On 19/9/20 10:08 am, Andrew Harvey wrote:
>
>
> On Sat, 19 Sep 2020 at 09:29, cleary <osm at 97k.com
> <mailto:osm at 97k.com>> wrote:
>
>
>     In regard to ABS data ... I understand that it was added into OSM
>     when it was the only data for which we could get permission.  ABS
>     statistical areas approximate suburb boundaries (perhaps 90%
>     similarity).  In the Sydney suburb where I live, the ABS boundary
>     is almost exactly the suburb boundary that existed more than 20
>     years ago (last century!) but the official boundary has now
>     changed. Now that we have accurate data on suburbs/localities, I
>     think we should remove references to ABS data.
>
>     In regard to mapping localities ...  I don't have knowledge of the
>     Gold Coast but, in NSW, I see localities as non-specific areas
>     without precise boundaries and which are are smaller places within
>     the bounded places usually referred to as suburbs.  If there are
>     official boundaries for Gold Coast localities, then I withdraw my
>     comments. However generally I think the suburbs are best mapped as
>     areas with precise boundaries while localities are mapped as
>     nodes. In rural areas, these places are often unpopulated and
>     mapped as "place=locality" or one or two houses mapped as
>     "place=isolated_dwelling" (both of which I have used).  In
>     metropolitan areas, they can be mapped with a node
>     "place=neighbourhood" (which I have used) or "place=quarter"
>     (which I have not used).
>
>
> For place=* yes best to use local knowledge, but for the actual
> administrative regions (which is what's being proposed for import
> here) as boundary=administrative, there are no gaps, so anywhere on
> the country has a suburb/locality administrative regions.
>
> It makes sense to co-mingle the place=* and boundary=administrative
> where they are the same, especially for suburban suburbs, but in rural
> areas if the imported region doesn't matchup with the place name, then
> you can separate out the boundary=administrative from the place=*.
>
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I'm not clear on what would be used for Level 10 if Suburb/Locality is
moved to Level 9. However if there is a sensible use even in one or two
sates/territories then I think AU wide we should shift to Level9.

Would it make sense to add existing and suggested authoritative source
for each level to the spreadsheet? Thanks for the ABS background!

Cheers,

Seb


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