ARTC establishment of a risk tool and associated processes has the potential to reduce risk associated with this safety issue. The status is assessed as partially addressed noting that the effectiveness of the updated risk management systems will depend on their successful implementation and management oversight.
ARTC advised that it has developed and implemented an Operational Risk Assessment (ORA) tool and associated process across all ARTC Operations & Network Control Centres. Users of the ORA tool will be responsible for applying the methodology in line with the current ARTC Risk Management System and ensuring notification, documentation, escalation, and approval occurs as required using the tool. The ORA tool enables risk to be allocated to the accountable level of authority for approval dependent on the level of risk.
It is acknowledged that the developed ORA tool provides a framework for evaluating risk scores in instances of network events that affect train control systems, and for specifying the level of approval required for the identified risk level. The effectiveness of this tool and associated processes to manage introduced risks and apply appropriate risk controls will be governed by implementation and oversight.
