a load of reformatting and added eta tables, and one or two more sub headings to make it flow better
← Older revision
Revision as of 23:53, 13 October 2014
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== A Brief History ==
== A Brief History ==
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In Ireland, a townland is (generally) the smallest administrative division of land and they form the building blocks for higher-level administrative units such as parishes and District Electoral Divisions (in the Republic of Ireland) or wards (in Northern Ireland).
A townland is a small geographical division of land. The townland system is of Gaelic origin, pre-dating the Norman invasion, and most have names of Irish Gaelic origin. However, some townland names and boundaries come from Norman manors, plantation divisions, or later creations of the Ordnance Survey.
A townland is a small geographical division of land. The townland system is of Gaelic origin, pre-dating the Norman invasion, and most have names of Irish Gaelic origin. However, some townland names and boundaries come from Norman manors, plantation divisions, or later creations of the Ordnance Survey.
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There are approx.
60
,000 townlands in Ireland according to [http://en.wikipedia.org/wiki/Townland Wikipedia]. Through a donation of out of copyright sheets from Trinity College Dublin, the Irish OpenStreetMap community now has a source from which to map all townlands on the island of Ireland. The total quantity currently added to OSM is detailed in the [[Taginfo]] box below
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There are approx.
61
,000 townlands in Ireland according to [http://en.wikipedia.org/wiki/Townland Wikipedia]. Through a donation of out of copyright sheets from Trinity College Dublin, the Irish OpenStreetMap community now has a source from which to map all townlands on the island of Ireland. The total quantity currently added to OSM is detailed in the [[Taginfo]] box below
{{#tag:osmtaginfo||key=locality||value=townland}}
{{#tag:osmtaginfo||key=locality||value=townland}}
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==
How
Long
Will
It
Take
To
Finish
? ==
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==
Why
are
Townland
boundaries
important
to
have
? ==
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This
is
a
multi
-
year
project
.
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In
Ireland,
a
townland is (generally) the smallest administrative division of land and they form the building blocks for higher
-
level
administrative units such as parishes and District Electoral Divisions (in the Republic of Ireland) or wards (in Northern Ireland)
.
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+
The benefits of having all townland boundaries mapped in OpenStreetMap are:
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* Highly useful for genealogical searches for people looking into the history of family trees of immigrants down the centuries
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* Gives the option of using OSM data for a much higher level of statistical analysis as presently the smallest boundaries available with which to divide up Ireland are City & County boundaries.
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* All of the above plus the favourable terms of the ODbL license applies ensuring this data is free to use for any and all that want to make use of it, in other words, no exorbitant fee's or licenses from national mapping agencies for this data would apply.
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If you know of other reasons, feel free to add them to the list.
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== How Long Will It Take To Finish All Townlands in Ireland? ==
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This is a multi-year project which has been ongoing at varying rates among the OpenStreetMap Ireland community over the last number of years. Recently [http://www.townlands.ie/progress/rate/ Townlands.ie] added an ETA function showing how long it would take to complete all the townlands in Ireland. As of 13th Oct 2014, at the current rate of mapping, the project would not be completed until the year 2025.
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The hopes are that the information on this page will spur additional people to take part in mapping these important boundaries.
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As of 13th Oct 2014, there are approximately 50,500 townlands remaining to be added to OSM. Based on this, the 3 tables below show the time required to complete map this quantity based on X number of mappers adding X number of Townlands on a daily basis.
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{| border="1" class="wikitable" style="text-align:center; width: 600px;"
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|+ '''Time to 100% coverage based on 5 townlands mapped a day'''
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! Qty of mappers ||1||2||3||4||5||10||15||20
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|-
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! Daily qty by x mappers
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||5||10||15||20||25||50||75||100
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|-
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! Days To Finish
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||10,113||5,057||3,371||2,528||2,023||1,011||674||506
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|-
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! Months To Finish
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||337.1||168.6||112.4||84.3||67.4||33.7||22.5||16.9
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|-
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! Years To Finish
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||28.1||14.0||9.4||7.0||5.6||2.8||1.9||1.4
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|-
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|}
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As you can see, the more people actively involved, the better. The table below contains the same information, however the qty of townlands mapped each has been increased from 5 to 6 to illustrate the impact a small increase in effort can have when spread among many participants.
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{| border="1" class="wikitable" style="text-align:center; width: 600px;"
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|+ '''Time to 100% coverage based on 6 townlands mapped a day'''
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| Qty of mappers ||1||2||3||4||5||10||15||20
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|-
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| Daily qty by x mappers
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||6||12||18||24||30||60||90||120
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|-
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| Days To Finish
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||8,428||4,214||2,809||2,107||1,686||843||562||421
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|-
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| Months To Finish
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||280.9||140.5||93.6||70.2||56.2||28.1||18.7||14.0
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|-
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| Years To Finish
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||23.4||11.7||7.8||5.9||4.7||2.3||1.6||1.2
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|-
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|}
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=== How long will it take an average mapper to complete a single map sheet? ===
To give a rough idea, for a single sheet that requires rectification and mapping, the approximate time frame to complete it, spending an hour a day at the task, is roughly a month. That breaks down as follows:
To give a rough idea, for a single sheet that requires rectification and mapping, the approximate time frame to complete it, spending an hour a day at the task, is roughly a month. That breaks down as follows:
Line 36:
Line 34:
or
or
the following link if using an IRC client [irc://irc.oftc.net/osm-ie irc://irc.oftc.net #osm-ie]
the following link if using an IRC client [irc://irc.oftc.net/osm-ie irc://irc.oftc.net #osm-ie]
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|-
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!Forum - More or less inactive
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| [http://forum.openstreetmap.org/viewforum.php?id=34 Ireland sub-forum] in the OpenStreetMap Forums
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!Twitter
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| {{twitter_user|osm_ie}}
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!Facebook
!Facebook