Rail transport in Ireland

Ireland
An Iarnród Éireann 22000 Class DMU at Drogheda MacBride station
Operation
National railwayIarnród Éireann (Republic of Ireland)
NI Railways (Northern Ireland)
Statistics
Ridership50 million (Republic of Ireland, 2019)
15 million (Northern Ireland, 2017)
System length
Total2,733 km (1,698 mi)
Electrified53 km (33 mi)
Freight only362 km (225 mi)
Track gauge
Main1,600 mm (5 ft 3 in)
Electrification
1500 V DCDART in Dublin
Features
Longest tunnelCork railway tunnel
Longest bridgeBarrow Bridge
No. stations147
Map
Active railways in Ireland, with locations of major airports and ports in proximity to rail lines

Rail transport in Ireland (InterCity, commuter and freight) is provided by Iarnród Éireann in the Republic of Ireland and by Northern Ireland Railways in Northern Ireland.

Most routes in the Republic radiate from Dublin. Northern Ireland has suburban routes from Belfast and two main InterCity lines, to Derry and cross-border to Dublin.

The accompanying map of the current railway network shows lines that are fully operational (in red), carrying freight only traffic (in black) and with dotted black lines those which have been "mothballed" (i.e. closed to traffic but potentially easy to re-open). Some airports are indicated but none are rail-connected, although Kerry Airport and Belfast City Airport are within walking distance of a railway station. Both the City of Derry Airport and Belfast International (Aldergrove) are near railway lines but not connected. Ports are marked, although few remain rail-connected. Dublin Port, Larne Harbour, Belview Port and Rosslare Europort are ports that are still connected.

Ireland's only light rail service, named Luas, is in Dublin. No metro lines currently exist in Ireland, but there is a planned MetroLink line which would serve Dublin.

The island's railway network is controlled by three different signalling systems. Throughout the Republic of Ireland, the main signalling system is CAWS (Continuous Automatic Warning System), a system developed by WABCO (now sourced by Alstom) and first introduced in 1984, it is now used on the majority of the network. ETCS Level 1 is also fitted, but not operational on the Great Northern Mainline from Dundalk to Greystones and further rollout is being conducted with plans to fit the majority of the network by 2040.

In Northern Ireland, the railway network is signalled by AWS and TPWS, which requires a signalling changeover at the border near Newry. NIR Class 3000 and IÉ 201 Class are equipped with both systems to allow cross-border services.