Smart Freeways - Kwinana northbound


We will deliver Perth’s first Smart Freeway and create an additional lane from Canning Highway to the Narrows Bridge. Smart technology will be used to open and close traffic lanes in the event of an incident and adjust speed limits to maximise traffic throughput during busy periods.


What is a Smart Freeway?

Our Smart Freeway will involve multiple features, including:

  • All Lane Running: creation of an additional lane by transitioning the emergency stopping lane for use by general traffic between Canning Highway and the Narrows Bridge.
  • Lane Use Management System: safely enabling all lane running by implementing a new system to allow traffic operators to close 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.
  • 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 Traffic Operations Centre
  • Driver information: will be better facilitated through electronic signs on the freeway informing motorists of traffic conditions ahead in real-time

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

Image: Smart Freeways Illustration web size.JPG 


Key benefits

By using smart technologies to control speeds on the freeway in congested periods, we are able to move more vehicles than ever before.

As a general rule, an extra lane on the freeway can provide for up to 1,800 additional vehicles per hour. By implementing Smart Freeways, we will be able to move up to 2,000 extra vehicles per hour and improve journey times for road users on Kwinana Freeway as far south as Roe Highway.


Why was this area chosen for Smart Freeways?

Smart Freeways is the best solution for this constrained area where the railway and the Swan River prevent traditional widening.


Status, timing and procurement

We will continue to undertake project development activities with construction expected to commence in late 2018.

Key dates

Note the following dates are subject to change

1. Procurement for an alliance contract

  • Advertise for Expression of Interest from industry – July 2017
  • Issue Request for Proposals to shortlisted applicants – December 2017
  • Contract Award – mid 2018.

2. Construction

  • Commence construction – late 2018



Modified: 12 Sep 2017