Sydney CBD motorways optimisation

Back to Map

Sydney CBD motorways optimisation

Inner Sydney road network capacity
Early-stage proposal (Stage 1)
Sydney Inner City, NSW
Fast-growing cities
Efficient urban transport networks
Problem/Opportunity timeframe
Near term (0-5 years)
Proposed By
NSW Government
Date added to the IPL
14 February 2019


Motorways in the Sydney CBD are an integral part of the road network, providing through movements and access between the CBD and other major centres. Traffic on the motorways is unmanaged, and the roads are not performing effectively to cope with growing demand.

The roadways are currently congested during peak times, which has significant knock-on impacts on the broader road network. Further, the large number of events and incidents occurring on these roadways exacerbate congestion and unreliable travel times. This also results in more crashes, particularly during congested periods.

Without intervention, demand growth will lead to even higher levels of congestion, unreliability and frequency of crashes.


The proposal focuses on better use of existing assets to improve performance of the road network.
Potential responses include the provision of Intelligent Transport Systems and other technology to monitor traffic conditions, manage congestion and respond to incidents in real time. 
The proposal is to improve journeys for road users by using real-time information, communication and traffic management tools to provide motorists with a safer, smoother and more reliable journey. The objectives of the project would be to:

  • increase network resilience
  • improve travel-time reliability, user experience and road safety
  • reduce travel times, vehicle operating costs and environmental impacts
  • optimise existing infrastructure assets.

Next steps

Proponent to develop potential investment options (Stage 2 of Infrastructure Australia’s Assessment Framework).