[Talk-GB] NHS England open data - hospitals

[Paul Berry]

Hi Russ,

Interesting project. I don't have any particular opinion on the merits of
your idea but, as always with these things, it's helpful for mappers to
give it a try and see if any anomalies in their local area are thrown up by
the results.

I think some of the mapping comes down to whether amenity=hospital is
accompanied by building=hospital and healthcare=hospital also.

In the light of this I've made a manual change to one of the hospitals your
render flagged up and we'll see if that changes its marker from green to
blue. It's this object: http://osm.org/relation/11916361

Regards,
*Paul*

On Wed, 27 Jan 2021 at 15:49, Russ Garrett <russ at garrett.co.uk> wrote:

> Hello!
>
> I've been doing a little bit of investigatory work into the open data
> which NHS England makes available (under OGL), with some view of
> looking at the feasibility of an import:
> https://www.nhs.uk/about-us/nhs-website-datasets/
>
> I'm looking first at using this data to improve the mapping of
> hospitals in England which are marked as "NHS Sector" in the hospitals
> data file. This data should allow us to spot hospitals which are not
> mapped, and improve the ones which are with website, phone number,
> operator, and address data.
>
> You can see the map of running osm_conflate against this data here
> (this shows the changes which it would make, with green pins being
> additions and blue pins being modifications):
>
> https://render.githubusercontent.com/view/geojson?url=https://raw.githubusercontent.com/russss/nhs_osm_conflate/main/diffs/osm_uk_hospitals_conflated.json
>
> My initial impression here is that this is extremely good at spotting
> unmapped local hospitals, of which there are quite a few (some of
> which I have already fixed manually). It's less accurate at correctly
> identifying existing hospitals in urban situations where there might
> be several on the same campus.
>
> We may be able to fix this by pre-tagging these existing hospitals
> with the NHS organisation ID before running an import (we'll need a
> ref tag for this), we may need to manually check each change, or we
> can simply use this data to guide manual tagging.
>
> I'll continue looking into this, but I thought people might want to
> take a look at the results so far.
>
> Cheers,
>
> --
> Russ Garrett
> russ at garrett.co.uk
>
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