Iarnród Éireann advises customers that a revised timetable will be in place this weekend on all routes.
Customers are advised to check times before travel for revised schedules, at www.irishrail.ie or on the Iarnród Éireann app.
Intercity travel can also be booked at the website or app, and is strongly advised, particularly at busiest times and during the times of major works.
Rail service arrangements – major works
Engineering works will take place between Dun Laoghaire and Bray over the May Bank Holiday weekend. There will be no train service between Dun Laoghaire and Bray on Saturday 29th April, Sunday 30th April and Monday 1st May.
The following stations will be closed for train services during the works: Sandycove and Glasthule, Glenageary, Dalkey, Killiney and Shankill.
DART services will operate between Malahide/Howth and Dun Laoghaire only. Dublin Bus and Go Ahead Ireland will accept valid tickets within affected areas.