Where a design involves complex signalling arrangements, it may be beneficial to involve the designing engineer during the final onsite field testing phase as they have the best understanding of the interlocking principles. This places them in a strong position to identify any design omissions or deficiencies that may not have been evident during earlier phases of a project.
ATSB safety advisory notice RO-2009-009-SAN-028 to ARTC advises that they should consider implications and take action on this issue.
The Australian Transport Safety Bureau advises that the Australian Rail Track Corporation should consider the implications of this safety issue and take action where considered appropriate.
ITSR notes ARTC's advice on the recommendation.
ITSR have applied a status of recommendation R0-2009-009-SAN-028 is "Closed - Recommendation Rejected".
