Overview
- Infrastructure Australia supported advancing the business case to a two‑year development phase to engage contractors and confirm about 40% of the design.
- The preferred Stage 1 route spans roughly 194 kilometres, largely in tunnels, with initial stations at Broadmeadow, Lake Macquarie, Central Coast and Central Sydney.
- Staged openings are proposed with services to the Central Coast by 2037, the Sydney CBD by 2039 and an extension to Parramatta and Western Sydney Airport by 2042.
- The High Speed Rail Authority forecasts about a one‑hour Newcastle–Sydney trip, with tunnel segments limiting speeds to around 200 km/h and open sections reaching up to 320 km/h.
- Infrastructure Australia withheld a public cost estimate to protect procurement, prior NSW modelling put the Sydney–Central Coast segment at up to $32 billion, and the assessment flags low confidence in housing uplift and only modest car‑to‑rail shift.