A 48 hour work stoppage by SPITU and the NBRU at Irish Rail is underway this morning.
Services across the Intercity, DART and Commuter routes have ground to a halt.
The Labour Court found that payroll savings are "Unavoidable" if the future of the company and it's staff was to be secured.
However SIPTU says the company has reneged on a deal it made with workers in 2012, and now its members do not believe guarantees from management that cuts to their pay will be temporary.
Paul Cullen is Assistant Organiser for SIPTU at Irish Rail:
Meanwhile Iarnrod Eireann has apologised to passengers for this disruption to services.
Spokesperson Barry Kenny, says the company needs to make urgent savings in order to survive:
