The national rail occurrence standard and guidelines (ON-S1/OC-G1) do not include significant train wheel slip/slide occurrences as a notification category/type which has the potential to lead to rail safety regulators being unaware of significant and/or systemic safety issues related to wheel/rail adhesion.
The ONRSR has committed to revise ON-S1 but this has not been approved through consensus of all State and Territory jurisdictions
The ONRSR agrees to review and include more explicit guidance on slip-slide events in the appropriate existing categories of the ON-S1 Standard and OC-G1 Guidelines.
The ONRSR will furthermore consider the need to establish a specific category for slip-slide occurrences as part of the national data strategy review.
The ATSB is satisfied that the action taken by the Office of the National Rail Safety Regulator addresses this safety issue.
