Fixed leftover "usage=main" at Tipperary.

railway=rail changed to railway=construction near Adare: it's not open yet.

Updated Limerick Colbert track layout. Also changed the land use of the southern car park as appropriate, but did not detail it.

Converted leftover metric speed limits in the Limerick station area to mph in line with signs on the railway.

Added line ref and CAWS tags to Waterford and Limerick, updated line speeds west of Tipperary. I also reduced the line status east of Limerick Junction to branch: it only gets two trains a day each way.

Seperated the Limerick-Rosslare relation into its constituent parts. Added reference/line speed to the South Wexford.

Added the old Kingscourt branch into a relation.

Fixed an error I made with the track reference past the Larne Harbour buffers.

Extended the track in Portrush to the current buffers.

Added the disused Antrim branch into a relation and added some station sites.

Added the Portrush branch into a relation and updated Portrush station.

Corrected the operator for the tracks in the RPSI base to the RPSI instead of Translink.

Added the Larne line into a relation and updated most station platforms.

Added the BCDRs' Castlewellan branch into a relation, which is the last of its branches to be added.

Added the Ardglass branch into a relation.

Added the Ballynahinch branch into a relation.

Added the Donaghadee branch into a relation.

Added the Belfast and County Down's main line into a relation.

I missed a track segment. I cut one of the platforms back so it doesn't overlap with the building west of the museum; a survey is needed to figure out where it really ends.

Put the Enniskillen-Derry railway into a relation, realigned it at various points, added station sites, and marked the Foyle Valley Railway as disused.