Past Evaluations

The table below shows the Stage 3 proposals that Infrastructure Australia has previously evaluated. 

For each proposal, we publish a summary of our evaluation, which you can access in the table below. This outlines our assessment of the strategic fit of the proposal, the costs and benefits the proposal offers for Australians, and the deliverability of the proposal.

To see the proposals we have positively evaluated as nationally significant priorities for Australia, explore the Infrastructure Priority List.

A number of business cases evaluated by Infrastructure Australia have been publicly released, view all available business cases.

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The proposal includes widening Tonkin Highway from four to six lanes and upgrading the intersections at Hale Road, Welshpool Road and Kelvin Road, providing benefits to north-south commuters and freight traffic around the Perth Airport Industrial Hub.
Evaluation Date
31 August 2021
State:
Perth

The business case is for removing six level crossings on the inner Armadale Line. The project aims to improve safety and reduce congestion at the level crossings, as well as improving station precincts and public open space.

Evaluation Date
08 December 2020
State:
Perth
WA

The business case is to extend the Armadale Line approximately eight kilometres south to Byford. This is to support and provide public transport access to the high-growth suburb of Byford.

The business case was accepted for Infrastructure Australia's evaluation on 14 July 2020.

Evaluation Date
08 October 2020
State:
Perth
WA