On Mon, 28 Apr, 2014 at 4:17 PM, Ian Sergeant <[email protected]>
wrote:
On 28 April 2014 14:23, Michael Gratton <[email protected]> wrote:
So you are saying the ABS suburb boundaries should be checked
individually
rather than imported en mass? How do you know that the quality of
the
GNB/Wikipedia/etc data is any better than that of the ABS dataset
where they
disagree?
Yes.
Firstly, the ABS data is several years out of date.
The GNB is the authoritative source for whether a suburb exists or
not.
Comparing several sources - council, gazette, ABS, GNB - if they
concur, then you've probably got something accurate on your hands.
So how accurate does it have to be? For example, I just downloaded
Andrew's ABS OSM converted datafile (thanks Andrew!), loaded it into
JOSM, and have been eyeballing the differences for the ABS version of
Randwick with the LPI cadastre using in SIX Maps. It's confidence is
rated very good and I can see that the ABS data matches quite well, but
it's missing fine details such as where the suburb falls entirely one
one side of road rather than the centerline, and some corners are a bit
off. Does this matter?
//Mike
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