Tangara Technology Upgrade, Transport for NSW and Sydney Trains


At a Glance

  • Client(s)
  • Transport for New South Wales
  • Project Location(s)
  • Sydney, Australia
LTK-designed railcarLong live the trains. 

The Tangara fleet operated by Sydney Trains consists of 446 double-deck, electric multiple unit trains manufactured between 1988 and 1995. The fleet operates predominantly as eight-car consists on the city network. Now deemed to be at half-life, Transport for New South Wales (TfNSW), in coordination with Sydney Trains, has developed various projects targeted to add 10 years to the life of this fleet.

Collectively referred to as the Tangara Technology Upgrade (TTU), one major initiative includes replacing the obsolete onboard train management system, modifying the driver’s desk, and installing a train communications network and an upgraded public address intercom.

LTK Australia was selected by TfNSW as technical advisors for this element of the program. Working as an extension of their staff, we collaborated with the transaction advisor team in the finalization of the Statement of Work and on the subsequent procurement activities leading up to contract award. This included running technical interactive workshops, adhering to the probity requirements of the project, and ensuring that all Tenderers received the same opportunity and received consistent guidance on technical requirements.

LTK Australia’s team managed the response to all Tender stage technical questions. They also developed the technical evaluation plan and were members of the tender technical special advisory team. The final phase of work required the team to negotiate with Tenderers to address deficiencies in their offerings and to prepare updated specifications ready for contract award. Work is now underway by the selected contractor.

Another major initiative is the overhaul and upgrade of the pneumatic external passenger door systems on these vehicles, which have become unreliable due to pre-existing design issues and general wear and tear. The door supplier has been contracted to design and provide components for the overhaul/upgrade, while Sydney Trains are managing and performing the upgrades with in-house staff. The work includes a total of 1,784 double doorways. The targeted outcome is a 50 percent decrease in door-related in-service faults.

Under a direct contract with Sydney Trains, LTK Australia was engaged to provide on-site engineering support. The scope includes: reviewing the design documentation, ensuring work is accurately recorded, reviewing maintenance documents and conducting maintenance training, advising on testing and commissioning, preparing test reports, and assisting the production team to troubleshoot problems and identify, investigate and solve any reliability issues.

LTK Capabilities Used on This Project