Division 4 Indicators relating to precursors of accidents

Total and relative (to train-kilometres) number of precursors to accidents and a break down on the following types of precursor:

• broken rail,

• track buckle and other track misalignment,

• wrong-side signalling failure,

• signal passed at danger when passing a danger point,

• signal passed at danger without passing a danger point,

• broken wheel on rolling stock in service,

• broken axle on rolling stock in service.

All precursors are to be reported, both those resulting and those not resulting in accidents. (A precursor resulting in a significant accident shall also be reported under indicators relating to precursors; a precursor not resulting in a significant accident shall only be reported under indicators relating to precursors).