Auckland's rail network is adding a million passenger trips every three to four months.
Auckland Transport says another milestone has been reached, with 19 million passenger trips for the year to date, an annual increase of 19.4 per cent.
Brendon Main, Group Manager AT Metro Operations, says the rail network performance continues to be outstanding.
"We've added a million more trips in just 117 days, and we've seen growth at around that rate for the past two years. This time in 2015 we'd just celebrated 13 million trips.
"The completion of the electrification of the rail network from Papakura to Swanson has seen Aucklanders vote with their feet and use the trains."
Mr Main says including around 27,000 for the Adele concert on Thursday 23 March, trains carried a little over 113,000 passengers that day, setting a new daily record.
Find out more about train journeys at Auckland Transport's website.