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Andrew<br>
<br>
Sydney was mostly empty post-licence change (for reasons I will not
go in to now) and lots of the roads were re-traced in an mad dash to
patch things up. At the time there was some expectation that it
wouldn't take all too much time for the street names to be fixed
(given that Sydney is not sooo small and in principle should support
quite a large OSM community), but as you see that didn't happen
quite so fast. In any case thank you for your work.<br>
<br>
Simon<br>
<br>
<div class="moz-cite-prefix">Am 06.12.2015 um 02:54 schrieb Andrew
Davidson:<br>
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<div id="yui_3_16_0_1_1449362328760_19646">Rather ironically I'm
about half a dozen suburbs from completing Sydney. When I
started other people had done about 25% of the suburbs and I
carried on with their approach of using the existing OSM map
features that corresponded to the boundaries which are mostly
streets, property boundaries and waterways. (Let me tell you
I've see quite a large number of Sydney backyards ;-) ) I'd
been using the ABS2011 as the basis for this but I had been
checking with the NSWLPI stuff to see where they differed. I'd
say that the ABS stuff was about 80-90% accurate with a few
suburbs having very different boundaries and there being a
number of new suburbs created since 2011. The interesting
thing about the NSWLPI boundaries is that they don't always
appear to be correct either (ie: boundaries obviously
following streamlines but not lining up the the streams,
probably because the data comes from a number of upstream data
sources of varying accuracy) and that they have a lot of fine
detail in them (ie: the suburb boundary jumping from one side
of the street to the other or detouring up a walk way and back
again, or passing straight through buildings).</div>
<div id="yui_3_16_0_1_1449362328760_20230"><br>
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<div dir="ltr" id="yui_3_16_0_1_1449362328760_20216">So there is
a lot of interpretative work that went into putting these into
OSM.<br>
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<div id="yui_3_16_0_1_1449362328760_19645"><br>
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<div id="yui_3_16_0_1_1449362328760_19644">What I quickly learnt
was that the state of the OSM map in Sydney is pretty poor at
the moment. It looks OK from low zoom levels but once you go
in you discover that there are entire suburbs with no street
names and that the street tracing is pretty rough in places.
I'm guessing the problem has been that some of the early stuff
was traced from NearMaps and the later stuff is from Bing.</div>
<div id="yui_3_16_0_1_1449362328760_19882"><br>
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<div dir="ltr"> On Sunday, 6 December 2015, 9:14, cleary
<a class="moz-txt-link-rfc2396E" href="mailto:osm@97k.com"><osm@97k.com></a> wrote:<br>
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<br>
<br>
<div class="y_msg_container"><br>
I have approached the NSW Government and have received
permission for<br>
OpenStreetMap to use specified data from Land and
Property Information<br>
NSW.<br>
<br>
I have added the appropriate attribution in the
Contributors page of the<br>
wiki under New South Wales Government data and it
includes a link<br>
("explicit permission") to a transcription of the
correspondence<br>
received, so that the details of the specified
permission and requested<br>
attribution can be scrutinised.<br>
<br>
I do not have the skills to import whole datasets safely
but it is my<br>
intention to utilise individual items of data where I
can do so when<br>
editing OSM. I also recognise the dangers in importing
data on a<br>
wholesale basis, for example the official NSW suburb
boundaries (as<br>
shown in LPI data) are not the same as the ABS
approximations which have<br>
already been included in some places and there would be
scope for<br>
serious conflict of data if this particular LPI dataset
were to be<br>
imported without a lot of care.<br>
<br>
Is there anything else that needs to be done in regard
to appropriate<br>
publication of permission in the wiki? <br>
<br>
I trust other users editing the New South Wales map will
be interested<br>
in this new (and very rich) source of data.<br>
<br>
<br>
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