How fares have jumped in the past few years
Rail fares have gone up sharply in the past few years, at a time when the Government subvention paid to Irish Rail has been cut back.
There were large rises in rail fares in 2012 and 2013.
The cumulative rise in commuter rail fares is 29pc on average.
But some fares are up by 50pc. The seven-day commuter ticket is now €40.10, up 50pc.
Irish Rail's fares are regulated, with the National Transport Authority determining how much it can increase fares by each year.
In 2011, Dart and commuter fares went up by 3pc. In 2012, there was a rise of between 6pc and 6.7pc in Dart and commuter fares. This coincided with the introduction of the Leap Card, which allows passengers to save up to 18pc on fares.
The biggest rise was in 2013 when Dart and commuter fares went up by 10pc.
There were rises in 2014 and last year.
Irish Rail insisted that parking charges had not increased by the same extent.
The cost of a weekly parking ticket at Maynooth, Co Kildare, five years ago was €10 if paid in cash, and €8 for Parkbytext. Now it is €11 for cash payers, and €9 for Parkbytext.