In 2026, Australia’s rail infrastructure landscape could be considered to be in something of a major transitional state. With a wide number of major construction projects currently underway, the country is gradually expanding access to vital networks to reach each and every corner of the map.
From freight to High Speed Rail; Australia is investing in a vast range of new projects that aim to increase rail activity in all areas, and we’ve highlighted just a few of these major projects to give you an idea of the scope of the country’s current activity.
A TBM launch site in Clarinda
© Victoria’s Big Build
Inland Rail
The country’s largest ever freight infrastructure scheme, Inland Rail will see 1,700-km of track link two of Australia’s largest cities – Melbourne and Brisbane – whilst simultaneously unlocking significant regional economic potential.
With construction first commencing in 2018; the new line involves 13 projects and blends 600km of new track with 1,100km of upgrades to provide 24-hour, double-stacked container transport between the two major cities.
Work recently progressed across the line’s Narromine to Narrabri section
© Inland Rail
Current reports put costs for the overall project have been estimated to be sitting at more than 31 billion AUD, exceeding original estimates of 10 billion AUD.
Completion is now expected between 2030 and 2031, with major partners in its delivery including WSP, Mott MacDonald, CPB Contractors, ACCIONA Construction, and Martinus for civil works, design, and rail construction.
Melbourne Suburban Rail Loop
Set to connect the city’s outer suburbs; Melbourne’s Suburban Rail Loop (SRL) is a 90km rapid transit system that is divided into four distinct sections: SRL East, SRL North, SRL Airport and SRL West.
The project’s two main sections, SRL East and SRL North, have been designed to form a single, fully automated, 60km underground orbital metro line through the city’s suburbs, with a set of 13 stations between Cheltenham and Melbourne Airport connecting eight existing Melbourne rail lines and three major university campuses.
Alstom’s Metropolis automated metro trains will operate on the eastern section of Melbourne’s Suburban Rail Loop project
© Alstom
SRL Airport will be formed by the separate Melbourne Airport Rail project, and will run conventional rail services along a 15km line between Melbourne Airport via Sunshine into the central business district via the Metro Tunnel, whilst full details on the final section, SRL West, are yet to be fully determined.
With an estimated cost between 31–58 billion AUD; the project is expected to open in stages, with SRL East scheduled to be completed in 2035, SRL North in 2053, SRL Airport in 2033 and SRL West is still TBD.
Sydney Metro West & Western Sydney Airport
Australia’s biggest ever public transport project; the Sydney Metro expansion will see construction of a brand-new rail line from Hunter St in the northern Sydney City Centre (CBD) to Westmead in the western suburbs of Greater Sydney, growing the existing infrastructure to run parallel to the existing Main Suburban and Main Western railway lines via different suburbs and different stations, ultimately doubling the current available capacity.
TBM Jessie’s recent arrival at Hunter Street station marked the completion of excavation work for the project
© Sydney Metro
Early construction first began on the project in early 2020, with tunnelling first starting in 2023. Valued at anywhere between 27 and 29 billion AUD; the line is scheduled to be open to the public in 2032 with excavation now complete.
High Speed Rail (Sydney–Newcastle)
Whilst construction is not yet underway; the Australian federal government has officially entered the development phase for a new High Speed Rail link between Sydney and Newcastle.
High Speed Rail – Line 1 will see the construction of a dedicated new railway line, with trains capable of travelling at speed of up to 320km/h. Once operational, the line will reduce current journey times between Newcastle and Sydney to just one hour – a reduction from the current time of roughly 2 hours and fifty minutes.
The new High Speed Rail line will aim to reduce journey times from Newcastle to Sydney to one hour
© Australian Government High Speed Rail Authority
New stations have been proposed for central Newcastle, Lake Macquarie, the Central Coast, central Sydney, Parramatta and Western Sydney International Airport, and it is believed that investment in the first leg of the high-speed rail network will generate around 250 billion AUD in economic activity, as well as add 99,000 jobs and 160,000 new households to the Hunter region.