Hi Mark
Although not anywhere conclusive I made a Mapillary capture outbound on
Woore Street Wilcannia 5/2022 that shows what are likely to be the dual
50/100 transition signs (smudges) well before the changeset. Might be
useful..
Bob
On 19/2/24 20:19, Mark Pulley wrote:
I haven’t done any reversions yet. I was planning to start from the
oldest changeset and work forwards, however the oldest changesets
don’s specify a source. I’ve asked about a couple of these including:
https://www.openstreetmap.org/changeset/117791362 - first changeset -
on outskirts of Wilcannia
https://www.openstreetmap.org/changeset/117831384 - outskirts of Old Junee
Both of these are claimed to be from information provided by ’someone’
who had travelled on those roads. I’ve just asked for more info
regarding the source of this information.
I also queried a couple of recent edits from 'local information and
NSW Speed Data’:
https://www.openstreetmap.org/changeset/147432769 - western edge of
Kempsey from 'local information and NSW Speed Data’ - also from
’someone’ who had travelled on those roads.
https://www.openstreetmap.org/changeset/146881278 - private driveway
near Brooms Head from 'local information’ - I had previously surveyed
this maxspeed, and recent Google imagery showed the same limit. No
reply regarding this one.
How should I (or we) approach this? Will I need to check available
imagery for every changeset? Should I go ahead and revert the NSW
Speed Data ones?
Mark P.
On 12 Feb 2024, at 2:45 pm, Andrew Harvey <andrew.harv...@gmail.com>
wrote:
No objections from me. They haven't responded yet, and from
everything we can tell they imported the data without any other cross
checks and didn't follow the import guidelines.
On Sun, 11 Feb 2024 at 22:00, Mark Pulley <mrpul...@iinet.net.au> wrote:
I’ve got some spare time (having caught up with the surveys from
my last holidays), so I can go through these and revert them. Any
objections?
Mark P.
On 9 Feb 2024, at 9:57 am, Andrew Harvey
<andrew.harv...@gmail.com> wrote:
We do have permissions to use this data it's listed in
https://wiki.openstreetmap.org/wiki/Australian_Data_Sources#New_South_Wales,
however from looking at their changeset history, it looks like
1. They are conducting an import by en-mass blindly adding and
replacing existing data with the imported data
2. They may be engaging in directed mapping (being employed to
make these changes), since their changesets are all the same,
importing speed limits, except for one Local Knowledge changeset
https://www.openstreetmap.org/changeset/131210459 in India.
If they want to conduct an import like this, they need to go
through the proper process, so based on and the issues you've
rased it should be fine to revert all their affected changes and
then ask going forward to go through the import guidelines
https://wiki.openstreetmap.org/wiki/Import_guidelines.
On Thu, 8 Feb 2024 at 21:32, Mark Pulley <mrpul...@iinet.net.au>
wrote:
Does the NSW Government Speed Zone data have a licence
suitable for importing into OSM? Also, is it generally
accurate?
https://opendata.transport.nsw.gov.au/dataset/speed-zones
https://opendata.transport.nsw.gov.au/dataset/road-segment-data-from-datansw
The reason I ask is that I recently came across a few roads
with speed zones updated based on this data. The biggest
problem is that the changes made in these three changesets
were incorrect (i.e. the previously surveyed maxspeeds were
updated from this data, but on survey in December 2023 the
original surveyed maxspeed was the correct one).
https://www.openstreetmap.org/changeset/129760120
https://www.openstreetmap.org/changeset/129759614
https://www.openstreetmap.org/changeset/129759603
Other changesets have been made based on this data, but I
haven’t checked the accuracy of them.
Mark P.
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