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Auckland commuter train services have been derailed again tonight with reduced services across the city.
The problem started this morning when all train services came to an abrupt stop at 9:00am.
This time it was a signal failure not track problems.
Most lines resumed within the hour but AT warned of delays of up to half an hour until further notice.
To put it in perspective, there's been than more than 13 hundred train cancellations in Auckland in the last month with track speed restrictions the most common reason for cancellations.
KiwiRail's David Gordon speaks to Lisa Owen.