The Labour Relations Commission was expected to renew contact with management and unions at Iarnród Éireann today, as part of the continuing efforts to resolve a dispute over driver rostering.
Talks at the commission adjourned without agreement yesterday.
The dispute has caused disruption to train services.
Today's 6.30am Portlaoise to Dublin Heuston train and the 5.35pm train from Heuston to Carlow are cancelled.
Ten trains in the north Dublin area were also cancelled yesterday.
