[talk-au] Unincorporated areas added from Local Government National Report map

[Warin]

These boundaries will have to be taken into account by the adjoining 
council boundaries too.

On 28/10/24 10:28, Andrew Harvey wrote:
> On Thu, 24 Oct 2024 at 21:55, cleary<osm at 97k.com> wrote:
>
>> When OpenStreetMap was initially given permission to use limited NSW
>> Government spatial data, it included Local Government Area administrative
>> boundaries and, as far as I can ascertain, that permission remains.  The
>> website was formerly lpi.nsw.gov.au and became spatial.nsw.gov.au but I
>> think we still have permission for the specified datasets as noted in the
>> OSM contributors page
>> https://wiki.openstreetmap.org/wiki/Contributors#New_South_Wales_Government_data
>
>> I have just been looking for the URL for the LGA dataset and didn't see
>> it. However I did find the NSW Spatial Services link to Arcgis map of LGAs:
>>
>> https://www.arcgis.com/home/webmap/viewer.html?url=https%3A%2F%2Fportal.spatial.nsw.gov.au%2Fserver%2Frest%2Fservices%2FNSW_Administrative_Boundaries_Theme%2FFeatureServer%2F8&source=sd
>
> The CC BY waiver we have covers "Spatial Web Services licensed CC BY 4.0",
> which at the time was for a set of REST web services listed at
> https://www.spatial.nsw.gov.au/products_and_services/web_services, the
> contents of that page changed slightly and now includes the  NSW
> Foundational Spatial Data Framework (FSDF) data themes through the Spatial
> Collaboration Portal.
>
> So my view is that CC BY licensed foundation spatial data via the Spatial
> Collaboration Portal is covered by our waiver and we can continue to use it.
>
> The URL
> https://www.arcgis.com/home/webmap/viewer.html?url=https%3A%2F%2Fportal.spatial.nsw.gov.au%2Fserver%2Frest%2Fservices%2FNSW_Administrative_Boundaries_Theme%2FFeatureServer%2F8&source=sd
> is
> a map viewer for the service at
> https://portal.spatial.nsw.gov.au/server/rest/services/NSW_Administrative_Boundaries_Theme/FeatureServer/8
> which is covered, so you can use the LGA boundaries layer on that map
> viewer.
>
> Or you can download the LGA layers directly using
> https://github.com/openaddresses/pyesridump
>
> esri2geojson
> https://portal.spatial.nsw.gov.au/server/rest/services/NSW_Administrative_Boundaries_Theme/FeatureServer/8
> LGA.geojson
>
> or you can use the "Export data" feature from
> https://portal.spatial.nsw.gov.au/portal/home/item.html?id=3e1edb6861524b5490c74db81e42433a
>
>
>
>> I don't think we can use this map as a source for copying data but it is
>> worth looking to see what data we might be seeking to access. It includes
>> "Unincorporated - Sydney Harbour Area" and "Unincorporated - Botany Bay
>> Area".  The Sydney Harbour Area includes much of Parramatta and Lane Cove
>> Rivers as well as various bays such as Homebush Bay and Canada Bay. OSM
>> currently shows the limits of LGAs administered by councils but does not
>> show the Unincorporated Sydney Harbour area.
>>
>> The recent mapping showing islands in the harbour as Unincorporated Sydney
>> Harbour appears to be incorrect as the harbour itself is part of the area
>> as well as the islands within the harbour.
>>
> I agree. If we want an Unincorporated Sydney Harbour area in OSM then
> https://www.openstreetmap.org/relation/18183667 should just become the
> whole harbour boundary including the islands and not a bunch of small areas
> like it currently is.
>
> Although I'm conscious that the source data we are using here is just one
> representation of the situation and it doesn't always mean we should have
> the same representation in OSM. In this case though I can't see any reason
> to not include the water areas.
>
> It also looks like the Sydney Harbour area is using a particular high tide
> mark for the boundary, and I'd favour aligning it to the harbour boundary
> we have in OSM, by using the existing ways as the relation outers.
>
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