[Talk-GB] OS Benchmarks in OSM?

[Chris Andrew]

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
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