Significant railway works are affecting train services in five different counties this weekend.
Dublin, Cork, Limerick, Clare and Louth are all affected as tracks are upgraded.
Disruptions on the Cork to Mallow services will continue until Tuesday.
Irish Rail is strongly encouraging commuters to check the website for scheduling information.
In Dublin, the Northside DART from Connolly to Howth/Malahide and the Northern Commuter from Connolly to Drogheda are suspended for this weekend.
⌚️Check times on all routes before travel for #BankHoliday alterationshttps://t.co/o5iOcUHYA2
👷♀️👷♂️Major engineering works
taking place:
Cork to Cobh, Midleton and Mallow
Connolly to Howth and Drogheda
Limerick to Ennis
ℹ️ For full information see: https://t.co/o5iOcUHYA2 pic.twitter.com/7nz6tWnQqs— Iarnród Éireann (@IrishRail) October 23, 2021
Spokesman for Irish Rail, Barry Kenny, explains what measures are in place:
"For DART customers between Connolly and Howth and Malahide and northern commuter customers up to North County Dublin, Dublin Bus services and Go Ahead services will be accepting rail tickets on affected routes.
"We also have a limited bus service in operation between Drogheda and Dublin. This is right through the bank holiday weekend, Saturday, Sunday and Monday."