Rail unions are engaged in intensive talks tonight in a bid to resolve the train drivers' dispute.
Earlier, management at Iarnród Éireann said this evening's talks were make-or-break for efforts to get the trains running again.
More than 60 drivers are now refusing to operate the new trains and the company has said it will not take part in talks until they return to work.
Over 35,000 rail passengers were affected for a second day today as train services to and from the south and west were severely disrupted.
Iarnród Éireann says the stoppage has cost it up to €1million in lost ticket sales.
The company earlier advised anyone intending to travel to check before they set off.
Services in Dublin city, along the east coast and between Dublin and the northwest operated normally.
However, theree were no rail services today to or from Cork, Kerry, Galway, Mayo or Limerick, and only some local services to and from Limerick and Waterford.
The dispute centres on the opposition by rail drivers to the introduction of new trains.
