The ongoing dispute between Luas drivers and the tram service operator, Transdev, has entered its second day.
Up to 90,000 commuters have been forced to make alternative arrangements this morning, as a 48-hour strike by SIPTU members is being enforced.
The row centers about pay increases. Drivers are seeking pay rises of up to 53% over seven years, but Transdev has said this is not realistic.
Luas driver will walk out again for two days next week, unless the dispute is resolved.