Department of Infrastructure, Transport, Cities and Regional Development print logo Building our Future print logo

Roads of Strategic Importance

The Australian Government is investing $4.9 billion in the Roads of Strategic Importance (ROSI) initiative to help connect regional businesses to local and international markets, and better connect regional communities.

ROSI is ensuring our key freight roads efficiently connect agricultural and mining regions to ports, airports and other transport hubs. This initiative is delivering works such as road sealing, flood immunity, strengthening and widening, pavement rehabilitation, bridge and culvert upgrades and road realignments.

Improved access provided through ROSI is providing substantial social and economic benefits, including opportunities for greater regional employment and business growth.

The ROSI Investment Principles set out the objectives for investment through ROSI PDF: 1168 KB ReadSpeaker.

ROSI Corridors

Northern Australia

Southern Australia

Other ROSI Initiatives

New South Wales


South Australia


Western Australia