Greater frequency for DART trains
Rush hour DART trains will run every 10 minutes from next year to cope with the rising number of passengers, transport chiefs have ordered.
The commuter rail service along the capital's coast currently operates every 15 minutes during the busiest periods of the day.
But with passenger numbers soaring by more than 6% this year already, Iarnrod Eireann has revealed plans to increase the frequency of journeys.
"The continuing and accelerating growth in demand for our services is very welcome for Iarnrod Eireann and the wider economy," a spokesman for the company said.
"We are already looking at continued growth forecasts to ensure we develop our services to meet the growth in demand we are experiencing, with a particular emphasis on increased DART frequency."
Preliminary figures show there were more than 9 million journeys made on DART, Commuter and Intercity services from January to March this year - up almost 4% on the same time last year.
The upturn was even sharper for Dart services, with over 200,000 more journeys taken compared to the previous year.
Iarnrod Eireann credits discounts on the Leap Card and Taxsaver schemes, initiatives targeting students and growing employment for the increasing number of commuters.
It has already introduced extra services on other lines to cope with demand, including a new Friday evening service from Dublin to Waterford in recent weeks.
"The increases in demand underline the role high capacity public transport will play in meeting the challenges of economic growth, to ensure we avoid congestion and build a sustainable future," the spokesman added.