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<p>I looked at the separation of park boundaries and coastlines down
in Wilson's Prom a while ago and asked the #oceania discord at the
time but never ended up changing anything. If you look at the
legal definition of many national parks, their boundaries are
defined by the high water mark. Since the coastline tag is also
supposed to represent the high water mark then I would say that
they should be snapped together (since they then represent the
same feature - that is, the high water mark). This would mean that
the boundary data already in OSM from the government basemaps
would just be their own mapping of the high water mark, and
probably be less up to date or refined as our own.
<br>
The other issue I wasn't sure about was the copyright of the
government maps that declare these national parks as following the
high water mark. You could argue that its a legal fact and
therefore can't be copyrighted but it is also hard to find that
information outside of government run archives. (The parks are
usually represented on maps of the area by the Surveyor General
and make references to the high water mark, at least in Vic).
<br>
<br>
This is my first time responding on talk-au, lmk if I've messed up
any formatting to link to the original question.
<br>
<br>
On Tue, 28 Mar 2023, at 10:58 AM, Warin wrote:
<br>
<br>
</p>
<blockquote type="cite" style="color: #007cff;">Hi
<br>
<br>
<br>
Looks like some are setting natural features to government
boundaries.
<br>
<br>
<br>
A recent case along the WA south coast has been going on for some
years..
<br>
<br>
The coast line looks very confused and the National Park
boundaries are
<br>
being changed to the coast line in reverse of what is stated on
the
<br>
change sets... (bangs head on wall).
<br>
<br>
<br>
I was altered to it by OSMInspector identifying the National Park
<br>
boundary being broken by the 'adjustment' of the 'coastline' ...
that
<br>
broke the National Park boundary...
<br>
<br>
The National Park boundary looks, in some places, to be the low
tide
<br>
mark and then in other places to be the hi tide mark, so it is not
<br>
consistent.
<br>
<br>
<br>
I do understand where the two (natural feature and government
boundary)
<br>
coincide that it is easier to use the same way. But every now and
then
<br>
someone moves it to conform to the latest imagery of the natural
feature
<br>
.. thus moving the government boundary .. unintended but there we
go. My
<br>
only solution si to have them as separate ways .. making it easier
to
<br>
divorce the new nodes added for the new nature feature addition
from the
<br>
old government boundary.
<br>
<br>
<br>
Any other ideas???
<br>
<br>
<br>
<br>
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