Re: [Talk-GB] Two new tools: 'Ghosts' and 'Survey Me'

[Brian Prangle]

Actually TA Centres (Territorial Army Centres) which are now called Army
Reserve Centres. If you're surveying you might find the units based at them
have changed name too

Regards

Brian

On 11 June 2018 at 17:23, Robert Whittaker (OSM lists) <
robert.whittaker+...@gmail.com> wrote:

> On 9 June 2018 at 15:15, Rob Nickerson  wrote:
> > A couple other "Ghosts":
>
> I'd be happy to add both of these to
> http://robert.mathmos.net/osm/ghosts/ if possible and appropriate.
>
> > - Total petrol stations (I'm almost certain this brand has gone now but
> > struggled to find definitive proof)
>
> I guess a suitable Overpass search for these would be
>
> [amenity=fuel][name="Total"];
> [amenity=fuel][brand="Total"];
>
> But does anyone have any knowledge of whether the brand really has
> gone from the UK?
>
> >  - The army recruitment shops - can't remember the name (Brian will know
> as he
> > mentions this occasionally)
>
> I'll need some form of query to capture these. If they haven't been
> consistently tagged, then that might be difficult. Any ideas anyone?
>
> Robert.
>
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Re: [Talk-GB] Two new tools: 'Ghosts' and 'Survey Me'

[Robert Whittaker (OSM lists)]

On 11 June 2018 at 21:37, Andy Mabbett  wrote:
> I have the same issue; it's telling me there's an "unexpected" school at:
>
>https://www.openstreetmap.org/way/9568056#map=18/52.54706/-1.89224
>
> It's definitely a school; I drive past it daily; and it has a web presence at:
>
>http://www.oscottmanor.bham.sch.uk/

As it says at http://robert.mathmos.net/osm/survey/ "Some flagged
items may be false positives caused by ... mismatches with the wrong
OSM objects". That's what's happened here if you look at the main
schools tool at:
http://robert.mathmos.net/osm/schools/progress/B/#17/52.54752/-1.89212

There are two schools in the official register in that area, but three
amenity=school/college objects in OSM. The extra "Unexpected School"
in OSM is actually the Maryvale Institute. As far as I can tell, this
college offers higher education courses (i.e. undergraduate degrees)
so would be better tagged as amenity=university rather than
amenity=college. If this is done, then the two schools on the official
register will be matched to the two remaining schools in OSM, and the
flagged errors will disappear.

People local to Birmingham might be interested in looking at
http://robert.mathmos.net/osm/schools/progress/B/ where there are a
lot of red circles indicating "unexpected" schools in OSM. Some of
these are likely to be duplicate objects (e.g. both a school grounds
polygon and a building being tagged with amenity=school), some will be
non-schools tagged as amenity=school/college, some will be a second
site for a existing school, and others might be schools that have
since closed. The matching by the tool works will in most places, but
can struggle in dense urban areas with lots of schools close together.
You can help the tool get the matching right by adding the appropriate
ref:edubase=* tags to the schools in OSM. (Schools already matched by
this key are shown with dark green lines, other matches -- based on
location and postcodes -- are shown with light green lines.)

Robert.

-- 
Robert Whittaker

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