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.

The business case was accepted for Infrastructure Australia's assessment on 3 September 2020.

The Perth Level Crossing Removals – Inner Armadale Line project has not been added to the Infrastructure Priority List as a project at this time.