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

[Mark Pulley]

I’ve had a look at some of the other edits, and found problems with these ones (I’ve commented on these changesets):
https://www.openstreetmap.org/changeset/156506653
https://www.openstreetmap.org/changeset/156509426
https://www.openstreetmap.org/changeset/156670065
https://www.openstreetmap.org/changeset/156670373
https://www.openstreetmap.org/changeset/156749955
https://www.openstreetmap.org/changeset/156973456
https://www.openstreetmap.org/changeset/156976097
https://www.openstreetmap.org/changeset/157104211
https://www.openstreetmap.org/changeset/160414255
https://www.openstreetmap.org/changeset/161191331
https://www.openstreetmap.org/changeset/161405204
https://www.openstreetmap.org/changeset/161544611
https://www.openstreetmap.org/changeset/161546799

There’s another couple of edits that I’ll be reviewing soon. (I’m going through the voice recordings from a recent trip. I'd checked some of Harsimranjit Kaur’s edits on the way, and by chance a couple of Nova Systems GAP’s edits will be covered by these recordings.)

I’ve been checking many of Harsimranjit Kaur’s edits on my last couple of holidays, and have been making comments on those changesets, including where the edit was correct (so if we end up reverting her changesets, we can leave those ones alone).

Mark P.

> On 24 Jan 2025, at 12:45 pm, Graeme Fitzpatrick <graemefitz1 at gmail.com> wrote:
> 
> Just looking at some of the work that's been done, I also have some concerns that a lot of this is based on Govt data, not actual road reports.
> 
> A couple that stand out to me are https://www.openstreetmap.org/changeset/161546799 & https://www.openstreetmap.org/changeset/161332341, with that one in particular spanning half of NSW! They must have a very busy driver reporting to them that day!
> 
> Also noticed https://www.openstreetmap.org/changeset/161043708 in Qld, apparently based solely on https://www.data.qld.gov.au/dataset/speed-limits-for-state-and-local-roads/resource/a733d0a2-3164-4c63-b2f6-01ae491356f0, which, when you open it, says Speed: 100, Sign_Num: Unsigned. I would have translated that to no speed sign which should then mean no limit posted in OSM?
> 
> Bob3Bob3, are you able to comment at all on side road speeds, as you've been out that way: https://www.mapillary.com/app/?lat=-27.88184393155384&lng=150.3552983872255&z=19.80526275306296&pKey=866587440868417&focus=photo&x=0.4890568269273885&y=0.5948579482782078&zoom=0
> 
> I'd be much happier if they were basing their changes on actual dashcam footage, rather than Govt reports.
> 
> Thanks
> 
> Graeme