Dublin Bus is announcing extra services on seven more bus routes on top of moving the 39a to 24 hours.
Routes 1, 9, 13, 14, 40 and 83 are all getting extra departures outside rush hour.
Dublin Bus says it means shorter waits between buses and a more reliable service.
On Tuesday it emerged the 39a from Blanchardstown to UCD would be the capital's third 24-hour route.
80 new jobs for drivers and maintenance staff to support the bigger fleet have also been announced.