​​​​​​​​​​​​​​​​​​​Smart Freeway - Kwinana Northbound

We are delivering Perth’s first Smart Freeway and creating an additional lane from Canning Highway to Narrows Bridge. Smart technology will be used to open and close traffic lanes in the event of an incident and adjust speed limits to get more traffic through during busy periods.

A Smart Freeway is the best solution for this constrained area where the railway and the Swan River prevent traditional widening. It will provide motorists with greater journey reliability, saving time, reducing costs and enhancing safety.

Smart Freeways are used successfully around the world to manage congestion, improve safety and get the most out of existing infrastructure.


 Video: Smart Freeway Kwinana Northbound project overview


  • All Lane Running: creation of an additional lane by transitioning the emergency stopping lane for use by general traffic between Canning Highway and Narrows Bridge.
  • Lane Use Management System: safely enabling all lane running by implementing a smart system to close and reopen traffic lanes, adjust speed limits and provide emergency access during incidents, similar to the system used in the Northbridge Tunnel. 
  • Variable speed limits: are used to improve traffic flow by adjusting the speed limits based on traffic volumes and conditions. 
  • Emergency stopping bays: will be provided at regular intervals for vehicles to use in case of breakdown or incident.
  • Automatic Incident Detection systems, installed between Canning Highway and the Narrows Bridge, alert our operators to any incidents or breakdowns, while CCTV cameras allow further investigation.
  • Coordinated Ramp Signals: will be installed at on-ramps to help balance the flow of traffic onto the freeway and improve merging at Farrington Road, South Street, Leach Highway and Cranford Avenue.
  • Comprehensive CCTV coverage: will be linked to our central Road Network Operations Centre.
  • Driver information: will be better facilitated through electronic message signs on the freeway informing motorists of traffic conditions ahead in real-time.

This project is being delivered by SmartWays Alliance, which includes Main Roads, BMD Constructions, Ventia, and Arup.

Project update

Principal Shared Path (PSP)

Overnight works are progressing along the PSP between Canning Highway and Narrows Bridge. This section remains open between 5am and 8pm, Monday to Friday, and 7am to 8pm on weekends, with occasional day works scheduled outside peak hours (9am to 3pm) under traffic management.

Until mid-April, we will be installing permanent safety barriers along approximately 300 m of the PSP, between Canning Highway and the Cale Street footbridge (near the Scout Water Activity Centre at Como Beach).

At other times there may be local traffic management on the PSP between Farrington Road and the Narrows Bridge to allow for construction activities. Path users should observe traffic signage at all times and ride to the conditions.

Street Lighting

There is currently reduced street lighting on the freeway heading north between Canning Highway and the Narrows Bridge. Please take care and drive to the conditions.

Community Engagement Survey

How are we doing? Please take a couple of minutes to complete our Community En​gagement Survey . The information collected will be used to inform how the Smart Freeway - Kwinana Northbound project team communicates with road and shared path users, businesses and community members.


Kwinana Freeway from Canning Highway to Mounts Bay Road. This includes Mill Point Road northbound on-ramp (excluding Friday 3 April)

  • CLOSED northbound overnight until early Saturday 4 April (inclusive)
    • Sunday to Thursday nights from 8pm to 5am
    • Friday and Saturday nights from 8pm to 7am
  • Detour to the city via Canning Highway to the Causeway or Canning Highway and Graham Farmer Freeway to Mitchell Freeway northbound.
  • Principal Shared Path closed during these closures

Kwinana Freeway northbound entry from South Street

  • Closed on 31 March to 3 April 8pm to 5am each night
  • Westbound traffic detoured via Murdoch Drive and Leach Highway, and Karel Avenue, Leach Highway for eastbound traffic.

Manning Road southbound on-ramp works

  • Until mid-2020, road users may also notice roadworks on Manning Road, between Ley Street and Kwinana Freeway. 
  • This includes a lane closed in each direction between Ley Street and the freeway, and intersection closures from Manning Road to the south. Visit Manning Road southbound on-ramp project page for more information

Dates are subject to change. Please refer to on-road signage for the latest information. 

Visit our Travel Ma​p to find all roadwork, event and incident information you need to plan your trip.



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  • Increase road capacity
  • Adjust speed limits based on traffic demands in congested periods
  • Move more vehicles than ever before as well as reducing stop-start conditions by managing the flow of traffic
  • Improved journey times on Kwinana Freeway as far south as Roe Highway


Construction: By mid-2020

Commissioning and operation: From mid to late-2020

Last Updated: 31 March 2020