Transport Minister Simeon Brown is confident in delivering Auckland's City Rail Link on time with no network issues. 

KiwiRail has assured the $5.5 billion project will cut delays down to a maximum of 1 minute 20 seconds when it opens in 2026. 

Official papers show Brown and Auckland mayor Wayne Brown are working to improve confidence in the wide rail network. 

Simeon Brown told Heather du Plessis-Allan he's also aware of the rail fatigue among Aucklanders. 

He says he gets the frustration about more maintenance and renewals and is determined to ensure they get as much done as possible. 

LISTEN ABOVE 

• KiwiRail promises to cut train delays in time for CRL opening