Significant delays for Irish Rail passengers after major signal fault

A major signal fault on the train network, including Dart services, has been fixed.

However, significant delays and alterations remain across the suburban network as services get back to normal.

Darts, Northern Commuter, Rosslare, and Sligo trains have delays of at least half an hour.

Update: 🚨Major signal fault across the Suburban Network has been rectified. -AD

Services on the Suburban network are experiencing significant delays & alterations can be expected.

DART +45
Northern Commuter +37
Phoenix Park Tunnel +40
Rosslare +30
Sligo +34

— Iarnród Éireann (@IrishRail) May 29, 2026