IÉ's passenger services are branded under three main names; InterCity, Commuter and DART.
InterCity services are long-distance routes radiating mainly from Dublin. The Belfast – Dublin service, jointly operated with Northern Ireland Railways, is branded separately as Enterprise. Dublin's two main InterCity stations are Connolly and Heuston. Intercity services run to/from Cork, Limerick, Tralee, Ennis, Galway, Waterford, Rosslare Europort, Sligo, Westport, Wexford and Ballina. Dublin's third major station, Pearse, is the terminus for much of the suburban network in the Greater Dublin area. An additional two InterCity services runs from Limerick to Limerick Junction and from Limerick Junction to Waterford. This service formerly operated through to Rosslare Europort but services between Waterford and Rosslare Europort ceased after the last train on 18 September 2010. Bus Éireann now operates route 370 through the affected towns as replacement transport.
A new service began on 29 March 2010 from Limerick to Galway, as part of the Western Rail Corridor, reopening the long-closed line.
A January 2012 national newspaper article suggested that Iarnród Éireann was expected to seek permission in the near future from the National Transport Authority to close the Limerick–Ballybrophy railway line and the Limerick–Waterford line.
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Commuter
The majority of Commuter services are based in Dublin, which has four commuter routes: Northern (to Drogheda MacBride), Western (Connolly Station or Docklands to Maynooth/M3 Parkway), South-Western (to Portlaoise) and South-Eastern (to Kilcoole). See Dublin Suburban Rail for more details.
The Cork Suburban Rail currently has three Commuter services: to Mallow and Cobh, and a third service to Midleton which became operational on a part of the disused Youghal branch line on 30 July 2009.
Limerick Suburban Rail currently consists of two lines to Ennis and Nenagh, with shuttle services to Limerick Junction. A Commuter service operates between Galway to Oranmore and Athenry.
Commuter trains also operate on shuttle duty for branches from the main InterCity services from Mallow to Tralee (off the Dublin – Cork route) and from Manulla Junction to Ballina (off the Dublin – Westport route), as well as acting as InterCity trains for Dublin – Rosslare and some Dublin – Sligo services, and as the aforementioned Limerick – Limerick Junction – Waterford service.
DART
The north–south route along Dublin's eastern coastal side is also host to DART, Ireland's only electrified heavy-rail service. The DART consists of many types of trains, the oldest and most famous one being the 8100 Class which still operates, now extensively refurbished.
Services table
The following is a simplified table of Monday - Friday off-peak services. Various irregular calling patterns have been omitted for clarity.
Freight services
Iarnród Éireann also has responsibility for running freight services on the Irish network through its Freight Division – which recorded a tonnage decrease of 19.2% in 2019, and as of 2020, there are 3 freight flows running throughout the country. This operates both Railfreight trains and a network of road haulage through various distribution nodes throughout the country. Iarnród Éireann Freight is subdivided into three sections:
Bulk Freight – specialises in operating full trainloads of freight, usually bulk movements of single products such as cement, mineral ore or timber.
Intermodal – container trains, currently operated between Waterford Port and Ballina and Dublin Port and Ballina.
Navigator – the freight forwarding division, particularly associated with the transport of automotive stock parts.
Operational details
The Enterprise route (Dublin to Belfast) is well regarded. However, it is only double track and serves both local and intermediate Commuter as well as InterCity traffic. Hence any delay has knock-on effects. Also, there is limited platform availability at Connolly Station in Dublin. There was also a persistent problem with engine overloading, as Enterprise locomotives also supplied coach power. However, since September 2012, additional power is provided by separate Mark 3 generator vans.
The Cork-Dublin route was formerly the "premier line" of the Great Southern and Western Railway, one of the biggest pre-CIÉ operators. Rolling stock on this route consists of Mark 4 trains, which were built in Spain, complete with DVTs for faster turn-around. 22000 Class DMUs built in South Korea came into service from early 2007 replacing older coaching stock on most other InterCity routes. These 183 carriages are described by the company as the "Greenest diesel trains in Europe".
The former Minister for Transport, Noel Dempsey TD had announced that an additional 51 railcars had been ordered for the company for a planned introduction on services between Dublin, Louth, and Meath. They were placed into service in 2011/2012 but this plan was badly affected by the recession with 21 surpluses to requirements at the end of 2012.
The maximum operational speed of InterCity trains on the IÉ rail network is 160 km/h (100 mph), although the design speed of the Mark 4 carriages is 201 km/h (125 mph).
Since 2019, Iarnród Éireann has been trying to recruit more female drivers.
Network Catering
IÉ's Network Catering unit provided a trolley service of food and drink, a snack car and (on some routes) a restaurant service. It also operated a restaurant at Dún Laoghaire. According to Iarnród Éireann's annual report, the unit lost €297,000 in 2004. In 2006, Iarnród Éireann outsourced the catering on the Dublin-Belfast service to Corporate Catering Ltd, and all InterCity services were taken over by Rail Gourmet in March 2007. Rail Gourmet withdrew from the contract in 2020, and no longer provides catering for any Iarnród Éireann services. In 2023, a contactless catering service was established on the Cork to Dublin line.
InterCity and Enterprise fleet
IÉ 201 Class Locomotive
IÉ 22000 Class DMU
Mark 4
De Dietrich Rolling stock
Locomotive fleet
Current
CIÉ 071 Class/NIR Class 110 locomotive
IÉ 201 Class/NIR Class 201 locomotive
Former
CIÉ 001 Class locomotive
CIÉ 201 Class locomotive
CIÉ 121 Class locomotive
CIÉ 141 Class locomotive
CIÉ 181 Class locomotive
Commuter fleet
Current
IÉ 2600 Class DMU
IÉ 2800 Class DMU
IÉ 29000 Class DMU
IÉ 22000 Class DMU
Former
IÉ 2700 Class DMU
IÉ 2750 Class DMU
DART fleet
Current
CIÉ 8100 Class EMU
IÉ 8500 Class EMU
IÉ 8510 Class EMU
IÉ 8520 Class EMU
Former
IÉ 8200 Class EMU
Future fleet
IÉ's increasing fleet usage has led to requirements being made for the procurement of additional vehicles. DART services are running with all trains formed of 4–8 cars, while 54 sets of 63 fleet of ICRs are committed to services with 56 required on Friday. To this end, IÉ plans to purchase a significant number of new ICR vehicles – an initial purchase of 41 will be made for delivery in 2021, comprising three new trains, with the remainder planned as intermediate vehicles to lengthen existing units. The deal for the new vehicles is intended to include options for up to 40 further vehicles. There are also plans for a total replacement of the existing DART fleet, which will be combined with extensions to the DART network. The framework for the DART fleet is planned for up to 600 vehicles formed into four-car and eight-car sets, split into both pure EMU and BEMU trains. For immediate fleet capacity increases, IÉ planned refurbishment of its 2700 Class DMUs, which was subsequently cancelled. Instead, IÉ is discussing the possibility of sourcing surplus DMUs from the British network, with Class 170s and Class 185s available.
