The ongoing Luas row means that trams will not run today or tomorrow, after the drivers rejected a pay deal in recent days.
Transdev, the company operating the Luas, tabled an offer for an 18% pay increase over three years, but this was not accepted by drivers.
As a result, there will be no Luas services today or tomorrow, which is likely to disrupt the ongoing centenary celebrations in the capital.
Further work stoppages are planned for the coming weeks if no agreement is reached.