Irish Rail says the safety of the network could be compromised if additional funding of €500m isn't made over the next five years.
Irish Rail and the National Transport Authority have this evening published a review of the rail service – which says it will need an extra €103m every year over the next five years.
No decision has been made whether to cut under performing lines, but they've been identified as; Limerick – Ballybrophy, Limerick Junction - Waterford , Ennis – Athenry and Gorey – Rosslare.
They are also launching a public consultation on the matter.
CEO Irish Rail, David Franks if there’s no extra funding in the coming years, they will have to make some very serious decisions: "That would see the safety of the network deteriorate, that would see the performance of the network deteriorate, it will see us having to make very difficult decisions and judgements, we may have to reduce line speeds to operate over track that is not up to standard.
"One of our biggest issues seems to be signalling, signalling seems to be working fine and then break, whereas track deteriorates over time."