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Timeframe for addressing identified rail creep

Issue number: RO-2015-022-SI-03
Who it affects: Managers of rail networks
Issue owner: V/Line Pty Ltd
Operation affected: Rail: Infrastructure
Background: Investigation Report RO-2015-022
Date: 15 May 2017

Safety issue description

The procedures for measuring, assessing, and remediating rail creep in spring did not ensure creep defects were addressed in a timely manner and prior to the onset of hot weather. A creep defect identified by the spring measurements was not corrected before the derailment.

Proactive Action

Action organisation: V/Line Pty Ltd
Action number: RO-2015-022-NSA-038
Date: 15 May 2017
Action status: Closed

V/Line advised that the network standard for the inspection and assessment of lateral stability has been amended to include the requirement to measure and correct Stress Free Temperature (SFT) prior to the onset of the summer period (1 November to 31 March), with additional controls for any loss of rail stress detected during the summer period. The Technical Maintenance Plan has been amended to ensure creep measurements are completed 3 weeks prior to the summer season, to permit sufficient time for creep condition assessment and stress free temperature testing and correction.

   
Current issue status: Adequately addressed
Status justification:

The proactive action taken should address the safety issue.

 
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Last update 15 May 2017