On the 2nd February 1987 CIÉ was reorganised into a holding company and three operating companies called Iarnrod Eireann, Dublin Bus and Bus Eireann.
To mark the occasion, the IE Twitter team did a behind the scenes of Iarnród Éireann for 24 hours (0500 - 0500), to get a glimpse of how the team of 3,800 people deliver your train service.
From line inspection to stations, from train maintenance to signalling, through day and night, #24HRSinIE will give you a unique insight into the service and the people who provide it.
The photos in this gallery feature my contributions from throughout the day.
Use the hashtag #24HRSinIE on twitter to see all the posts from Iarnrod Eireann and many of their staff from throughout the day.
Click http://smu.gs/2jCwJhy to view.