Department of Infrastructure, Transport, Regional Development, Communications and the Arts

Infrastructure Investment Program

The Australian Government makes significant investments in land transport infrastructure across Australia through its Infrastructure Investment Program.

The Government is working with every State and Territory to build much-needed infrastructure across a number of individual funding programs.

This significant investment is a crucial part of the Australian Government’s strategy to bust congestion, better connect our regions, improve safety on our roads and meet our national freight challenge.

Featured projects

North-South Corridor

The Australian Government’s commitment to Adelaide’s North-South Corridor involves the upgrade of the corridor between Gawler in the north and Old Noarlunga in the south. Key projects as part of the North-South Corridor include the Northern Connector, Torrens Road to River Torrens, Darlington Upgrade, Regency Road to Pym Street as well as North-South Corridor future priorities which are currently in planning.

Midland Highway

The Midland Highway Safety Works Package comprises a series of projects such as installing flexible barriers, widening shoulders, removing roadside hazards, upgrading intersections, realigning tight curves, and providing additional overtaking lanes and rest areas to improve safety on this key highway.

Freight train

Melbourne to Brisbane Inland Rail

Inland Rail is a 1700 kilometre freight rail line from Melbourne to Brisbane via central-west New South Wales and Toowoomba. It will also enhance the national freight rail network, connecting Brisbane via Parkes to Adelaide and Perth, as well as creating jobs, reducing supply chain costs and making Australian exports more competitive.


METRONET is an upgrade and expansion of the passenger rail network in Perth. Australian Government funding has been allocated to the Thornlie-Cockburn link, the Joondalup line to Yanchep, removal of the level crossing at Denny Avenue, the Bellevue Depot Facilitation and a contribution towards the METRONET Business Case development.

Monash Freeway

The project will upgrade the Monash Freeway to increase capacity and reduce congestion in south-east Melbourne. The project is being delivered in two stages and will provide additional lanes from Warrigal Road to EastLink and upgrade the Beaconsfield Interchange.

Roads of Strategic Importance

The Australian Government has committed more than $5.3 billion through the Roads of Strategic Importance (ROSI) initiative to improve productivity and efficiency on Australia’s key freight roads, providing better connections between agricultural regions and ports, airports and other transport hubs and better access for tourism, mining and other sectors.

Melbourne Airport Rail Link

The Australian Government has committed up to $5 billion towards the construction of a rail link to Melbourne Airport in partnership with the Victorian Government.

Bruce Highway

The 1,700 kilometre Bruce Highway is Queensland's major north-south road corridor, connecting coastal population centres from Brisbane to Cairns and supporting around 58% of Queensland's population.

Western Sydney Infrastructure Plan

The Western Sydney Infrastructure Plan involves major road and transport linkages that are delivering a high quality surface transport network within the western Sydney region that will ensure the efficient movement of passengers, employees and freight, when Western Sydney Airport opens in 2026.

M80 Ring Road Upgrade

The project will complete the upgrade of the M80 Ring Road. It will widen and upgrade the remaining three sections.