ARTC is reviewing the relevant procedures in light of the identified 'minor safety issue'.
Safety issue description
The rules and procedures governing the issue of a Controlled Signal Block did not require or provide for coordination between network control officers when the Controlled Signal Block affects more than one controller’s area of responsibility.
27 March 2013
The Australian Rail Track Corporation has advised that it is currently reviewing the entire content of Rule ANWT 308 – Controlled Signal Blocking and will include the issue identified by the ATSB in that review.
The ATSB recomends that the Australian Rail Track Corperation continue to take further action to address this safety issue.