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This assessment brief outlines the New South Wales Government's WestConnex project, which consists of around 33 km of interconnected road projects that will extend the M4 motorway towards Sydney city, widen the M5 East motorway and join those two motorways with a new tunnel running under the inner western suburbs of Sydney.

This assessment brief outlines the Victorian Government's proposal for a new metro-style rail line that will provide 17 additional train services across Melbourne. The project will create six independent lines on the Melbourne network and introduce metro-style services across the network.

This assessment brief outlines the Victorian Government's plan to upgrade the Intelligent Transport System (which manages information, communication and control systems to manage traffic flows) on the Monash Freeway (M1) between High Street and Warrigal Road.

This assessment brief outlines the South Australian Government's plan for a package of bus priority measures, transit zones and interchange upgrades on the East–West Bus Corridor in Adelaide. The project will improve the efficiency and service quality of existing bus services on the east–west (including the north-east) mass transit corridor and thereby increase public transport patronage. The South Australian Government is seeking $174.3 million in Commonwealth funding for the project.

This assessment brief outlines the Western Australian Government's proposal to build approximately 1.8 kilometres of dual carriageway and undertake a major intersection reconfiguration along the Leach Highway (High Street) in East Fremantle between Carrington Street and the Stirling Highway. The upgrade will reduce delays for freight vehicles, improve road capacity and improve network amenity along a section of urban arterial road. The Western Australian Government is seeking $57.2 million in Commonwealth funding for the project.

This assessment brief outlines the Victorian Government's proposal to upgrade the Intelligent Transport System (which manages information, communication and control systems to manage traffic flows) on the Monash Freeway (M1) between Warrigal Road and Clyde Road. The upgrade will improve the operational performance, effective capacity and safety on the Monash Freeway and provide travellers with a high-level, consistent user experience along the freeway by continuing the upgrade from Warrigal Road. The Victorian Government is seeking $137.1 million in Commonwealth funding for the project.

In 2011, Infrastructure Australia positively assessed the Adelaide Rail Freight – Goodwood and Torrens Rail Junctions project as Ready to Proceed, conditional upon four recommendations.

In 2013, Infrastructure Australia assessed the Northern Connector stages 1 and 2 project in Adelaide, South Australia as ‘Threshold’.

In 2013, Infrastructure Australia assessed the East-West Bus Corridor project in Adelaide, South Australia as ‘Threshold’ on the Infrastructure Priority List. In 2013, Infrastructure Australia assessed the East-West Bus Corridor project in Adelaide, South Australia as ‘Threshold’ on the Infrastructure Priority List.

On 30 August 2018, Infrastructure Australia added the ‘Gawler Rail Line Electrification and Modernisation Project’ to the Infrastructure Priority List as a Priority Project.