Over the course of the next two weekends, all Dart services between Malahide/Howth and Grand Canal Dock will be suspended due to engineering works.
Dart services will only be operating between Grand Canal Dock and Bray/Greystones with bus services accepting rail tickets.
Irish Rail has also stated that all rail services to and through Connolly Station will be suspended for the next two weeks.
Commuter services between Malahide and Drogheda will operate on an hourly service with bus transfers between Malahide and Connolly.
Belfast and Drogheda services will operate with bus transfers between Drogheda and Connolly. Services from Maynooth will operate on an hourly schedule to Docklands Station instead of Connolly.
Services from Sligo to Maynooth will operate with bus transfers between Maynooth and Connolly. Services between Rosslare Europort and Bray will operate with bus transfers between Bray and Connolly.
All M3 Parkway services will be suspended.