More people used all forms of public transport last year.
LUAS saw the biggest jump in passenger numbers.
More commuters switched to public transport in 2015 with passenger number up across the board.
The LUAS reported the largest increase with 6 percent more people using its services while 5 percent more got the train.
Bus Éireann is also more popular with passenger growth up 1-point-7 per cent.
And Dublin Bus, who carry over half of all public transport users, saw a rise of 2-point-8 per cent.
It means almost 120 million people caught a bus in Dublin last year.
