Up to 90,000 commuters will be affected by a Luas strike in Dublin planned for tomorrow and Friday.
Normal service will resume on Saturday February 20th at 6.30am.
Luas tickets will not be valid on other public transport services during the strike action.
Customers with Luas pre-paid or Tax Saver tickets will be eligible for a refund.
Luas drivers are seeking pay increases of over 50% over the next five years.
Earlier this week, Luas staff served notice of further stoppages on March 8th and March 17th - St Patrick's Day.
At this stage, there is no sign of any further third-party intervention aimed at resolving the dispute.
Tánaiste Joan Burton has urged unions and management to sit down at the negotiating table and try to hammer out a deal, saying the city is "tough enough to get around in without losing a vital public transport link":
Transport Minister Paschal Donohoe says the escalation of strike action is "extremely disappointing".
"News that Luas workers are to stage a further two days strike action on the 8th March and again on St Patrick's Day will come as exceptionally bad news not only to commuters, who rely on Luas for their daily commute, but also to the 100,000 overseas visitors who will travel to Dublin to help us celebrate our national holiday".
"Commuters were seriously inconvenienced last week when a 48 hour strike was held. It appears the decision to stage a further two days of strike action, in particular on St Patrick's Day, is being taken with a view to causing maximum disruption, which will be welcomed by no-one", he added.
Minister Donohoe says it is vital further strikes do not go ahead.
Yesterday, SIPTU transport organiser, Owen Reidy, told Newstalk Breakfast: "Unless the employer can come to the table with new thinking, I think we're in for a period of sustained, on-going industrial action".
Meanwhile, the company has taken out adverts in national newspapers today reminding customers of the service disruption.
In case we forgot, @Luas is reminding us with adverts in newspapers today... #luasstrike pic.twitter.com/H34LK6gc1i
— Jack Quann (@jqbilbao) February 17, 2016
These people in Dublin explained how they will be affected by the stoppage.
