Auckland's transport authorities will aim to knock 20 to 30 minutes off rail journeys after passengers faced bottlenecks at Kingsland train station after Saturday's match.
Trains carried 16,500 fans to and from the test at Eden Park. While travel times from Britomart to Kingsland were exemplary before the match - around 20 minutes - some passengers had a long wait on the return trip.
Queues of penned-in fans stretched along Sandringham Rd, and Kingsland train station remained packed 40 minutes after the game finished.
The longest journey from Eden Park to Britomart via the free service was believed to be around an hour.
World Cup boss Martin Snedden said the bottlenecks would have to be eliminated for the tournament.