On 22-Dec-16 05:19 PM, Sam Wilson wrote:
I've found that there are quite a few MRWA road centre-lines that bear
no relation to where the actual road is. Usually because there are big
lumps of granite in the way, or quarries, or other physical reasons to
re-route the road. (I guess the road-builders don't tell MRWA that they
changed things?)
Humm these might be 'private' roads - e.g. constructed by a mining company for
their use.
So they might be highway=unclassified etc but access=private.
But yeah, I'm taking MRWA's geometries as a guide only, and certainly
not assuming their data is 100% complete. :-) So, I'd assume that any
non-track highway that is in OSM but not in MRWA is as-currently-mapped,
and leave it be.
Also, around towns there are often MRWA residential roads with names and
classifications etc. but which haven't actually (yet) been built. These
are sometimes currently firebreaks, but sometimes just scrub.
Similar problems occurs with the LPI base map ...
though sometimes I think that the LPI base map might be more up to date than
the satellite imagery:-\
Generally I leave these out as they may not exist yet. If you can see them as
firebreaks then you could enter them as tracks.
:-)
Of course, really what we should do it get out there for some
ground-truthing to solve these questions! :-)
Yes. Thought there is rather a lot of ground to cover8-)
—Sam
On Thu, 22 Dec 2016, at 01:11 PM, Andrew Davidson wrote:
The metadata says that it includes roads maintained by Main Roads and
"all roads controlled by Local Government (Local Roads) that are
assigned road numbers", which is great. It also has "other centreline is
also included for paths and unknown roads" which is a bit vague as to
how complete the data set is. What do the missing roads look like on
aerial imagery?
On 22/12/16 16:06, Warin wrote:
On 22-Dec-16 03:59 PM, Warren wrote:
I suspect the answer to this question is simple.
Following Sam Wilson's post about the data sources available for
Western Australian Roads, and using Sam's approach I have begun adding
and checking road names in WA. In the area that I am currently
working there are a number of named "roads" on OSM (usually Highway:
unclassified), that do not appear on the Main roads data.
If a road is not on the Main roads database does it automatically
become a named track (Highway: Track) ?
I'd leave it alone... someone thinks otherwise ... contact them for
their view.
The 'Main roads database' may not include roads maintained by local
councils ... that does not make them OSM 'highway=track'.
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