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Design of turnouts – MYD882 and MYD887
Date issue released
Safety Issue Description

The design of the VCA type 37 mixed gauge turnouts (MYD882 and MYD887) was such that they were not suitable for use by rolling stock with a 127 mm rimmed wheel.

Issue number
RO-2014-013-SI-02
Issue Status
Closed – Adequately addressed
Transport Function
Rail: Infrastructure
Issue Owner
V/Line
Mode of Transport
Rail
Issue Status Justification

The ATSB is satisfied that the actions proposed by V/Line will adequately address this safety issue.

Proactive action
Action number
RO-2014-013-NSA-011
Organisation
V/Line
Action date
Action Status
Closed
Action description

V/Line is developing technical and performance requirements for all crossing work, including dual gauge. This will include:

  • Minimum Wheel/rail cover requirements;
  • Performance requirements for fixed spreaders and gauge retention mechanisms;
  • Performance requirements for flange back guarding/checking mechanisms; and
  • Desirable and absolute limits for design gauge.
  • These will be issued to projects and external suppliers prior to receiving designs or type approval applications for review.
ATSB Response

The ATSB is satisfied that the actions proposed by V/Line will, when implemented, adequately address this safety issue.