018/11

Recommendation Date
Recipient Name
NZTA
Text
Temporary speed restrictions are used to manage the safety of train operations when a general deterioration in track condition is identified. KiwiRail Network's codes and standards consider track geometry faults such as cant, twist, line, top and rate of change of cant deficiency separately when determining the appropriate speed value.
The Commission recommends that the Chief Executive of the NZ Transport Agency work with KiwiRail to make changes to the codes and standards relating to imposing temporary speed restrictions. Multiple track faults within the same section of track should be considered collectively when determining if a temporary speed restriction needs to be imposed before track repairs are made. (018/11)
Reply Text
We intend to work closely with KiwiRail with an aim to implementing and closing this recommendation as soon as practicable.
Discussion on it will commence on publication of the final report and will be ongoing.
When implementation is effected and the appropriate evidence has been gathered, we will be liaising with TAIC with a view to closing this safety recommendation.
Related Investigation(s)