[talk-au] Question about using NSW Speed Zone Data in OSM

[Mark Pulley]

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.harvey4 at 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 <mrpulley at iinet.net.au <mailto:mrpulley at 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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