[talk-au] TMR Road Centerlines dataset

Michael m.james at internode.on.net
Sat Nov 17 07:14:36 UTC 2018



> -----Original Message-----
> From: Andrew Harvey <andrew.harvey4 at gmail.com>
> Sent: Saturday, 17 November 2018 3:00 PM
> To: OSM Australian Talk List <talk-au at openstreetmap.org>
> Subject: Re: [talk-au] TMR Road Centerlines dataset
> 
> On Sat, 17 Nov 2018 at 12:29, Joel H. <joelh at disroot.org> wrote:
> >
> > Thats pretty cool, I might compare a few of these roads.
> >
> > On 15/11/18 9:25 pm, Andrew Harvey wrote:
> > > I did some brief comparison it and there was at least one place
> > > where it was better than what's in OSM currently (geometry).
> >
> > I find the a geometry of the government data to be less straight and
> > more jittery,
> 
> I would say unnecessarily over-sampled.
> 

Do we have any information as to the capture process, are they all from one run or do they have multiple different runs over the top of each other?

> > the OSM data is perfectly OK in these cases. I have seen some rough
> > geometry in OSM, but I think the best thing to do is to use GPX and
> > make it ourselves. Could you please give me the name of the road where
> > geometry on this dataset was better? I would like to take a look.
> 
> https://osmcha.mapbox.com/changesets/64522779/
> 
> Original roads were edited in 2013 and imagery all showed this as a roundabout,
> as confirmed by the TMR dataset so I updated it from TMR.
> 
> > On 15/11/18 9:25 pm, Andrew Harvey wrote:
> > I'm noticing that the dashes seem to be missing on a lot of country
> > roads, I feel like we should trust OSM more but...
> >
> > In OSM we have: Esk Hampton Road
> >
> > In QSC we have: Esk - Hampton Road
> >
> > Esk and Hampton are town names so a dash makes sense. What does
> > everyone think?
> 
> If they are signposted with the dash in most cases then I think it's better to go
> for consistency and use the dash.

The TRC (Council) mapping data also has these road types without dashes, I had a look at a few to see if there was a pattern.

If you want a photo of that particular intersection and signage I might be able to get some tomorrow if the weather is fine.

> On Sat, 17 Nov 2018 at 13:37, Graeme Fitzpatrick <graemefitz1 at gmail.com>
> wrote:
> > Is there any way of showing in OSM that "this" is a State road? Could we use
> an "Operator" tag?
> >
> > I have sometimes wondered whether arterial roads around our area are
> Council or TMR controlled, so I know who to complain to!
> 
> +1 to the operator tag in this case. In fact that's something we could
> use this source for, to add operator=Department of Transport and Main Roads +
> operator:wikidata=Q1191482 to all of these roads.
> 
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