Department of Infrastructure, Transport, Regional Development, Communications and the Arts

Transforming Freeways - Widen and Introduction of ITS (Mitchell Freeway Southbound)

Funding Program:Urban Congestion Fund
Status:Under construction
Transport Mode:Road
Expected Start/Finish:Mid 2021 - Late 2023
Estimated Project Cost:$140,000,000
Australian Government Contribution:$70,000,000
Local Council/Shire:Town of Cambridge,City of Joondalup,City of Perth,City of Stirling,City of Wanneroo
Corridor:Perth Urban

Project Description

The Kwinana and Mitchell Freeways form the vital arteries in the Perth metropolitan road network. The Mitchell Freeway is currently known for unreliable traffic performance, which negatively affects Perth’s productivity. As the city continues to develop, demand has outstripped the capacity of the freeway system, highlighting the need to manage the flow of people onto, through, and out of the freeway corridor to optimise its performance.

The project will roll out the next section of widening and introduction of an Intelligent Transport System (ITS) on this primary freight network, which will allow for rapid monitoring and control of traffic flows.

The next phase of ITS is expected to provide upgrades to 16 ramps on the Mitchell Freeway southbound with the additional funding enhancing the scope to include gantries, lane use management systems, automated incident detection, dynamic message signs and safety cameras.


The project will:

  • improve network connectivity, accessibility and road safety for all road users
  • improve freight productivity and alleviate traffic pressure on the existing road network


The Australian Government has committed $70 million towards the project.


The project commenced June 2021 and is expected to complete late 2023.

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Project details last updated: 21/06/2021