Skip to main content

Yutraffic Varia chosen for Sydney's new harbour crossing

Western Harbour Tunnel is being built to take pressure off existing routes in Australian city
By Adam Hill January 3, 2024 Read time: 2 mins
Sydney's population is projected to grow from five million to eight million over the next 40 years (© Tuayai | Dreamstime.com)

Yunex Traffic is to deliver the traffic control software solution for a major infrastructure project in Sydney, Australia.

The twin, 6.5km Western Harbour Tunnel, currently under construction, will run beneath the city's harbour with three lanes in each direction, creating a western bypass for the central business district and taking pressure off existing routes such as the Sydney Harbour Bridge.

Yunex Traffic will work with Transport for New South Wales and Acciona to deploy its motorway control system, Yutraffic Varia. 

The company says the platform integrates all important tunnel systems and sub-systems - relating to ventilation, lighting, traffic flow and so on - which means operators "will be able to monitor and manage all processes in a single application, simplifying control and increasing safety".

Automatic response plans and strategies enable an immediate reaction to unpredictable traffic situations and incidents, such as a blocked lane, a stationary vehicle or even a fire in a tunnel, it adds.

Transport for NSW says the new tunnel will provide "improved transport connections with faster access to public transport interchanges and future opportunities for new direct bus services".

The key reason for the expansion is because Sydney's population is projected to grow from five million to eight million over the next 40 years, with the city's economy expected to double by 2031.

“Sydney is an example of what we see around the world: while a growing urban population promises economic growth, the existing transportation infrastructure demands innovation that meets people's needs," says Fred Kalt, MD of Yunex Traffic Asia Pacific.

"Intelligent solutions are needed to help reduce congestion, increase travel speed and safety – and ultimately lead to more livable cities with cleaner air to breathe."

The Western Harbour Tunnel is being delivered in two stages, with Acciona delivering the second. This includes the excavation and construction of an underground motorway from Cove Street Rozelle to North Sydney, with direct connections to and from the Warringah Freeway, an off-ramp to Falcon Street and an on-ramp from Berry Street at North Sydney. 

The contract also includes ventilation outlets, motorway facilities, and the mechanical and electrical fit-out of the entire tunnel.

Related Content

  • March 18, 2014
    Transurban announces preferred contractor for NorthConnex
    Melbourne-based toll-road operator Transurban Group has announced that the consortium Lend Lease Bouygues is set to design and build the Sydney, Australia, NorthConnex tunnel link between the M1 and M2 motorways in the city’s northwest. The nine kilometre, 80 km/h tolled link involves two motorway tunnels, built with a three lane capacity for future growth but initially marked for two lanes each way. It provides the missing link in the National Highway Network and offers a safe and more efficient way of
  • July 13, 2015
    Brisbane expressway opens to traffic
    The Legacy Way expressway, in Brisbane, Australia, is now open to traffic. The seven kilometre long expressway is approximately and includes one 4.6 kilometre long twin-tube tunnel connecting the Western Freeway with the Inner City Bypass. Traffic on the expressway is forecast to rise from 34,200 vehicles on an average weekday to 50,800 in 2026. Brisbane City Council (BCC) awarded the contract for the design, construction, operation and maintenance of the seven kilometre long expressway to the Transcity
  • March 29, 2016
    Toll upgrades for Sydney Harbour Bridge and Tunnel
    Kapsch TrafficCom subsidiary Kapsch TrafficCom Australia is to replace the existing road tolling systems for Sydney Harbour Bridge and Sydney Harbour Tunnel operated by the New South Wales Roads and Maritime Services (RMS). The contract, worth more than US$112 million (€10 million), comprises supply of a new tolling system, as well as maintenance and support for five years. The new tolling solution is expected to be operating by early 2017. Kapsch will deliver its latest tolling technology based on th
  • December 16, 2013
    SCATS study shows significant savings
    Australian study quantifies the benefits of SCATS to the motorists, the environment and the economy. Opportunity weekday cost savings potential of some AUD16 million (US$15.2 million) has emerged from rigorous analysis of a one-day study of Australia’s Sydney Coordinated Adaptive Traffic System (SCATS) in operation. This represents 27% of the total cost of a real alternative semi-adaptive traffic control. The estimated indicative annual weekday-based value is AUD3,900 million (US$3,705 million) or 0.9% of t