Works are set to carried out over the course of the Easter weekend.
Irish Rail is warning a number of train lines will be closed this weekend for repair works.
The DART line between Connolly and Dun Laoghaire will be closed from Saturday to Easter Monday.
The train from Dublin to Galway has been fully replaced by a bus journey from Friday to the following Monday, due to works between Portarlington and Galway.
On the Dublin to Cork line, bus transfers will be in place between Mallow and Cork on Saturday and Sunday.
The full revised Easter timetable can be viewed on the Irish Rail website.
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