[OSM-talk-ie] NI Electoral Divisions and tagging schemes. A Suggestion.

Sat Feb 25 12:53:42 UTC 2017

I'm using http://maps.openstreetmap.ie/os_opendata.html?zoom=14&lat=53.26797&lon=-6.38816&layers=B0FTTFFFFFF to compare the townlands, unfortunately it seems to end short of Dublin city centre. Can't remember who posted the link originally.

I see what you mean about the overlap around the South Circular Road, but I'm not certain the Dolphinsbarn townland is correctly mapped though http://maps.openstreetmap.ie/oocmaps.html?zoom=16&lat=53.33313&lon=-6.29108&layers=B0000TFFFFF . I assume at some point the townlands and city wards matched up.

Dave

________________________________
From: Brian Hollinshead <brian at hollinshead.net>
Sent: 25 February 2017 11:10
To: Discussion of OpenStreetMap in Ireland
Subject: Re: [OSM-talk-ie] NI Electoral Divisions and tagging schemes. A Suggestion.

Yes the white space for old Dublin City, on maps.openstreetmap.ie worries
me gently from time to time. I wonder though whether if the townlands are
so very old whether we should only tag city centre wards as admin-level=10
if they are the oldest wards we can find?

Dolphins Barn and Goldenbridge did extend in to South Circular Rd before
the city expanded to the Canal and Grangegorman East and West used exist, I
have seen them on 1837 OSI 6 inch in TCD.

Have been trying to find others and recently discovered that at least one
of the 9 Liberties had wards, (St Sephulchre's in particular,) have seen
names but not boundary detail yet.

More reading required.

Please Dave, which OSI data are you using, i would be interest to view Old
Dublin City.

Thanks

On 24 February 2017 at 20:56, Dave Foley <davefoley at hotmail.com> wrote:

> Very nice page Brian. Just wondering since there were no townlands in
> Dublin city centre would it make sense to tag them as admin_level=10? I
> also noticed the OSI has townlands marked in Limerick where there are none
> on OSM. I assume Cork city also had wards?
>
>
> The OSI data is very useful for finding errors in the townland boundaries,
> I even found a missing townland in Dublin (Taylorsgrange).
>
>
> Dave
>
>
> ________________________________
> From: Brian Hollinshead <brian at hollinshead.net>
> Sent: 23 February 2017 05:07
> To: Discussion of OpenStreetMap in Ireland
> Subject: Re: [OSM-talk-ie] NI Electoral Divisions and tagging schemes. A
> Suggestion.
>
> Hi
>
> re Admin and historic boundary tagging
>
> I have added four sets of Dublin City wards, as at c.1780, 1838, 1849 and
> 1946
> I tagged them as
>
> boundary=administrative
>
> date=1849
>
> historic=yes
>
> name=Trinity Ward (1849)
>
> political_division=city_ward
>
> type=boundary
>
> I accept I have mixed my admin with political but was quite unsure. I still
> need to re-visit the tagging to check all are the same.
>
> They can be viewed at http://hollinshead.net/maps/dublincitywards/   I
> know
> sources list is incomplete.
>
> My intention was to move them to histosm.org now recently restored.
>
> I tagged historic Dublin City as
>
> boundary=historic
>
> historic=yes
>
> name=
>
> type=boundary
>
> your suggestions most welcome.
>
>
>
> I will start a separate thread because I also have added
>
> Government and Dail constituencies 1798, 1947 etc (6544843)
> Police Districts (6650495)
> Townships, Rathmines etc (6144162)
> DLR and Township wards (6640701 and 6575092)
> City extensions (6144262)
>
> and need shared opinions re tagging and whether they should be on OSM or
> histosm or both and how to migrate them to histosm?.
>
>
>
> News of OSM feature, new to me recently, I think it is brilliant:
>
> open OSM, zoom well in on National Library, Kildare St Dublin
>
> select ? icon on the right, it will go green
>
> click anywhere in the vicinity of the library
>
> view the scope of detail now brought together in left margin.
>
> ( any other folk interested in Dublin City boundary detail please email me
> directly)
>
>
> On 22 February 2017 at 22:48, Cormac O Murchú <com at iol.com> wrote:
>
> > Hi,
> >
> >
> >
> > First of all Northern Irish EDs cannot be tagged like Southern ones. This
> > is
> > because they are no longer Administrative Units as they were abolished in
> > the early 920s and replaced by Wards.
> >
> >
> >
> > From what I can see no wards in NI (these are still Admin Boundaries )
> are
> > tagged at present. This is a separate issue but there is no point tagging
> > EDs without tagging wards as well. Wards will have to be injected into
> OSM
> > with admin_level=9 given their legal status.
> >
> >
> >
> > In the strict sense they were never known as Electoral Divisions as that
> > nomenclature dates from the 1990s in the RoI only. They were DED’s at
> > abolition time.  There are no name:ga names either, all the names must be
> > English only.  Furthermore EDs were known as Poor Law Electoral
> Divisions (
> > 1850 – 1898) for longer than they were known as District Electoral
> > Divisions
> > ( 1899-c. 1923) although census data was produced on an ED as well as on
> a
> > Ward basis in NI until the 1950s.
> >
> >
> >
> > Nevertheless they are of considerable historical interest and I think I
> > know
> > how to tag them.. Here is the suggested scheme so that Nominatim
> disgorges
> > all the variants.
> >
> >
> >
> > boundary=electoral_division
> >
> > alt_name=Drumsnot DED
> >
> > alt_name_1=Drumsnot PLED
> >
> > name=Drumsnot
> >
> > name:en=Drumsnot District Electoral Division
> >
> > place=locality
> >
> > type=boundary
> >
> >
> >
> > Input most welcome from all.
> >
> >
> >
> > Rgds
> >
> >
> >
> > C
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Talk-ie mailing list
> > Talk-ie at openstreetmap.org
> > https://lists.openstreetmap.org/listinfo/talk-ie
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