Safety issue

Safety issue description

When planning track disturbing work, Aurizon’s normal practice was to use its Hazard Location Register as a record of past occurrences at a specific location. Aurizon did not use the Hazard Location Register as a resource to consider the situational characteristics of a location that may increase risk, such as continuous welded rail, track gradient and proximity to fixed points such as turnouts or level crossings.
Issue number RO-2018-005-SI-01
Issue owner Aurizon
Transport function Rail: Infrastructure
Date issue released 28/06/2019
Issue status justification

The ATSB is satisfied that the safety action will reduce the risk associated with the safety issue.

Safety action

Action type Proactive action
Action number RO-2018-005-NSA-001
Organisation Aurizon
Action date 28/06/2019
Action description

During the investigation, Aurizon advised that:

  • To assist in identifying potential track buckle locations, all work sites were required to be assessed for risk, with a focus on track leading up to fixed points, locations with a history of track buckling and sections on which loaded coal trains descend steep grades. Risk assessments were also required to consider ballast condition, rail stress free temperature, site temperature and forecast temperature.
  • Sites with a high risk of compressive rail stress will be identified and added to the site hazard map before conducting ballast cleaning.

Related safety action was also proposed or introduced to reduce safety risk associated with track buckling (see Additional safety action).
Action status Closed