[Talk-GB] OS Benchmarks in OSM?

[Chris Andrew]

Thanks, Dave; I didn't think to do that, on my quick look.

Chris.

On Tue, 17 Jan 2023, 22:50 Dave F, <davefoxfac63 at btinternet.com> wrote:

> Hi
>
> It gets discussed every now & again.
>
> Best start with man_made=survey_point & do some further filtering from
> there. On the discussion page of benchmarks there appears to be some
> disagreement in how to tag individual items (quelle surprise).
>
> https://overpass-turbo.eu/s/1qgZ
>
> Cheers
> DaveF
>
> On 17/01/2023 22:21, Chris Andrew wrote:
> > Hi, everybody!
> >
> > I've been reading about Ordnance Survey 'Benchmarks'/ Bench Marks. OS
> > suggest that around 190 Fundamental Bench Marks (FBMs) exist, and
> > ""approximately 500 000 'lower order' BMs":
> > https://www.ordnancesurvey.co.uk/benchmarks/
> >
> > A downloadable archive exists, of the Benchmarks, and this is covered
> > by the Open Government Licence (OGL); this appears to be compatible
> > with OSM's approach:
> >
> > https://wiki.openstreetmap.org/wiki/Open_Government_Licence
> >
> > Does anyone know whether Benchmarks have been discussed, before? I'm
> > wondering whether this is useful historic information, that could be
> > verified by a StreetComplete quest.
> >
> > It looks like a (proposed?) tag already exists, but I think this needs
> > expanding slightly, to distinguish between Fundamental Bench Marks
> > (FBMs) and other Bench Marks.
> >
> > https://wiki.openstreetmap.org/wiki/Tag:type%3Dbenchmark
> >
> > A quick check of the tag page would suggest that we haven't quite
> > mapped all of the BMs.
> >
> > Before this goes any further, I just wanted to sound out the list, to
> > see whether we've already been around this buoy.
> >
> > Many thanks,
> >
> > Chris Andrew
> > chris_debian
> >
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Talk-GB mailing list
> > Talk-GB at openstreetmap.org
> > https://lists.openstreetmap.org/listinfo/talk-gb
>
>
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