[OSM-talk-ie] An attempt to geocode the list of schools from Dept. Ed. leads nowhere

Dave Corley davecorley at gmail.com
Wed Feb 3 23:09:14 UTC 2016


Hey Rory,

Did you try plugging in the location data from polling stations on
data.gov.ie

It won't give a complete picture as not all are used as polling stations
and there's likely a lot of mismatch between the names but it might work
for some for counties that have released polling station info
On 3 Feb 2016 20:44, "Rory McCann" <rory at technomancy.org> wrote:

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> Hi all,
>
> As as been mentioned on this list, in the UK they are doing a quarterly
> project to map more schools[1] and there is a list of schools from the
> Department of Education[2][3], but that only has addresses, not location
> s.
>
> I thought I'd download that file and throw it at Nominatim and see if we
> can't geocode those addresses, and have something to work with. I
> thought with all the mapped townlands, that Nominatim might be OK at
> some of the rural addresses.
>
> The results are not good.
>
> Nominatim returns a bounding box for a result. Here's what happens when
> you try to geocode all the primary schools: http://i.imgur.com/CFEW7Oa.p
> ng
>
> The big boxes are where nominatim was only able to get the county. You
> can see that many other boxes are just around towns and villages.
> Nothing more detailed than that. The map might as well be a map of
> "Counties and Towns of Ireland", which is useless for locating schools.
>
> An example address is "SCOIL NAOMH MICHEAL,SNEEM,CO KERRY". It's no
> surprise that Nominatim cannot get any more accurate than the village of
> Sneem in that case. The other school in Sneem, SCOIL
> EOIN,TAHILLA,SNEEM,CO. KERRY, is hardly more accurate.
>
> The code is in the "ie-schools-geocode" repository on our github[4]  Run
> "make install primary-schools-areas.shp" to generate the data. The
> geocoding is done in "geocode-single.sh"[5].
>
> That image is based on the shapefile in primary-schools-areas.zip[6]. If
> you don't want to generate the data, you can just download it directly
> from github. By using the Open Data plug-in you can open it in JOSM.
>
> Unfortunately, it looks like the schools list database isn't very useful
> for mapping all the schools.
>
> Irish addresses, eh?
>
> - --
>
> Rory
>
>
> [1]
> https://lists.openstreetmap.org/pipermail/talk-ie/2016-January/001418.ht
> ml
> [2]
> https://lists.openstreetmap.org/pipermail/talk-ie/2016-January/001424.ht
> ml
> [3]
> https://www.education.ie/en/Publications/Statistics/Data-on-Individual-S
> chools/Data-on-Individual-Schools.html
> [4] https://github.com/osmie/ie-schools-geocode
> [5]
> https://github.com/osmie/ie-schools-geocode/blob/master/geocode-single.s
> h
> [6]
> https://github.com/osmie/ie-schools-geocode/blob/master/primary-schools-
> areas.zip
>
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