Outer Sydney Orbital
Project overview
Transport for NSW is working to identify and protect a significant land corridor, known as the Outer Sydney Orbital (OSO).

Using the OSO, people will be able to conveniently travel from the Central Coast to the Illawarra Shoalhaven region. In addition, communities in west and south-west Sydney will enjoy transport connectivity throughout the Western Sydney International Airport (WSIA) precincts and Bradfield City.
This corridor will be protected in stages: OSO stage one and OSO stage two.
- OSO Stage 1 (OSO1) is a priority, due to its proximity to the WSIA.
- OSO Stage 2 (OSO2) originates at the M31 Hume Motorway at Menangle and runs in an eastern facing curve to the Illawarra-Shoalhaven region.
In the future, there will be further investigations to connect the Illawarra and the Central Coast.
See Infrastructure Australia’s Corridor Preservation page to see how.

Explore our Corridors interactive map
For more information on these rapidly developing areas, refer to: 
 
The Outer Sydney Orbital is included in the following strategies: 
 
Get in touch
Please reach out to us if you have any questions.
 
Call: 1800 684 490
Email: projects@transport.nsw.gov.au
