Project Title: Rio Tinto Rosella Project


Operating under the RAFA Agreement, Rio Tinto engaged Ansaldo STS to design and construct the signalling system at Rosella for the upgrade of their existing rail network. The work comprised the construction of twelve new signalling sites including an active level crossing.


Ansaldo STS

Project Value:

$3.4 million

  • Correlation of existing infrastructure,
  • Earth resistivity testing,
  • Cable termination for all equipment
  • Point-to-point testing
  • Cable hauling,
  • Installation of Dragging Equipment Detectors (DED),
  • Install/testing of Stream Flow Detectors. (SFD)
  • Construction of trenching, pit and pipe, in accordance with AFC Design.
  • Installation of underbores
  • Installation of concrete pads and culverts
  • Installation of earthing including earth grid and equipment
  • Installation of all required signage
  • Installation of location cases
  • Installation of equipment bases and foundations
  • Install track circuit bonding
  • Assistance during the commissioning
  • Removal of all redundant equipment after commissioning.
Technical Highlights:

The project was on a tight timeframe and working around live track in a remote location. DGA managed to complete their scope on time with no punch list. Rio Tinto stated “Rosella commissioning complete and handed back to Rail Operations (minor punch list works outstanding), zero train losses attributed to the commissioning (Supply Plan was 4). This is the best ever performance of any rail signalling I have seen, over 12 months in planning,  an outstanding effort by the joint team of EP and Ops with 188 people involved over the last week.”