In November 2017, the project was in the design and planning phase that includes developing connections to the St Peters interchange, to Sydney Airport Terminals 1, 2 and 3, grade separation of Robey Street and O’Riordan Street in Mascot, the duplication of a 3 kilometers section of the Port Botany Rail Line, within a complex stakeholder environment, with significant utility assets impacted and a heavily congested area.