The Bus Eireann strike is now entering it's fourth successive day with no end in sight to the dispute over cost cutting plans.
However Irish Rail is assuring passengers that all services are operating on all routes today.
Many trains were cancelled on Friday when drivers refused to cross pickets at the stations they share with Bus Eireann but Irish Rail management are stressing they're not part of the strike and they don't expect disruption today.
Out on the picket lines SIPTU organiser Willie Noone says his members are frustrated: "They know that they have no choice but to do what they're doing. They also know their time out on the picket line is going to be fairly limited because according to the company themselves they're saying that they're losing €500,000 a day."
He added: "A 7 day strike is going to cost €3.5 million. If you go on strike for two weeks its going to be €7 million. The company themselves have they only have €17 million in reserve so on day 4, there's only 10 days left."