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Australia is preparing to switch one of its busiest suburban rail corridors to fully driverless operation in 2026, as Sydney’s Southwest Metro project completes intensive trial running and advances toward the historic launch of the extended M1 Metro North West & Bankstown Line.
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Trial Running Wraps Up on Converted Bankstown Corridor
Publicly available project updates show that the Southwest Metro line between Sydenham and Bankstown has now completed a five week trial running phase, a key requirement before any driverless railway can open to passengers. The program, which concluded in late August 2026, involved around 130 simulated operational scenarios designed to test the robustness of systems and staff across the line.
During this phase, trains operated to the full timetable without passengers, replicating the automated services that will eventually run from Tallawong in Sydney’s northwest through the central business district and on to Bankstown. Exercises included responses to train faults, station incidents, crowding, and recovery from service disruptions, demonstrating how the line performs under real world pressure before it carries paying customers.
The trial running follows an extended period of testing and commissioning on the converted corridor, beginning when the first metro test train entered the upgraded tracks in April 2025. That initial phase focused on low speed checks of signalling, power supply, and platform systems, before ramping up to higher speed runs at up to 100 kilometres per hour as confidence in the new infrastructure increased.
Project documentation indicates that by early 2026, trains had already completed thousands of hours of testing and tens of thousands of kilometres of running on the Southwest segment. This sustained program has been central to demonstrating that the driverless system, platform screen doors, and new gap filler technology all function reliably together along the 13.4 kilometre corridor.
From Century Old Railway to Fully Automated Metro
The Sydenham to Bankstown section being converted to metro standards was originally part of Sydney’s Bankstown suburban railway, which opened more than 130 years ago. The transformation removes the former T3 Bankstown Line from the Sydney Trains network east of Bankstown and folds it into the M1 Metro North West & Bankstown Line, Australia’s first fully automated high capacity rail system.
Conversion works have included comprehensive track renewal, installation of modern signalling and communications, and full accessibility upgrades at all 11 intermediate stations. Transport plans describe the addition of platform screen doors and mechanical gap fillers, providing level access between trains and platforms to improve safety and speed up boarding. Extensive fencing has also been installed to physically separate the new line from adjacent freight tracks and surrounding streets.
According to project material published over recent years, the Southwest Metro conversion aims to remove one of Sydney’s most significant rail bottlenecks. The legacy Bankstown line previously merged with multiple other routes near the city centre, constraining capacity and making the broader network vulnerable to delays. By placing the corridor on a fully segregated, automated metro, planners expect more frequent and reliable services for both metro users and passengers on the remaining suburban network.
Once open, the extended M1 line is forecast to span about 66 kilometres from Tallawong in the northwest, via Chatswood, under Sydney Harbour and through the city centre, before continuing to Bankstown. This will create one continuous driverless spine across metropolitan Sydney, with metro trains operating independently from the traditional double deck suburban system.
Historic Step for Driverless Rail in Australia
Although Sydney’s North West metro section has operated with driverless trains since 2019, the coming extension to Bankstown marks the first time an existing, heavily used suburban railway in Australia has been converted to fully automated operation. The project therefore represents a landmark for the country’s rail sector, demonstrating that legacy corridors can be upgraded to modern metro standards rather than replaced entirely.
Information released by Sydney Metro and Transport for NSW emphasises that safety and reliability benchmarks for driverless operation are stringent, requiring not only successful trial running but also regulatory approval and formal handover to the private metro operator. Recent material indicates that end to end test runs from Tallawong to Bankstown are now under way, signaling that integration of the old and new sections of the line is in its final stages.
Once the extended M1 opens, metro trains are expected to operate as frequently as every four minutes in the peak between Bankstown and the central city. Earlier briefings outline projected journey time savings such as a 30 minute trip from Bankstown to the CBD, cutting around 15 minutes from the previous suburban rail timetable. The combination of higher speeds, rapid turnback capability and automatic train control underpins these gains.
Industry observers note that the project positions Sydney alongside global cities such as Singapore, Vancouver and Paris, where driverless metro lines already handle large shares of daily commuting. With the M1 operating as a fully automated route end to end, Australia will have one of the world’s longer continuous driverless heavy rail corridors.
Timelines, Disruptions and the Path to a 2026 Opening
The conversion of the Bankstown corridor has taken longer than early forecasts suggested, with government statements acknowledging that the shutdown of the former T3 line between Sydenham and Bankstown would extend into 2026. Project updates attribute the revised timetable to the complexity of upgrading a live rail corridor while managing industrial action, extensive construction works and integration with the already operating parts of the metro.
Recent notices on upcoming trackwork highlight continued weekend and off peak closures across sections of the existing M1. These outages allow crews to complete final integration tasks, including connecting the Southwest segment to the operational North West and City sections, testing the complete signalling and control system, and preparing stations for passengers. Authorities have consistently maintained that services on the combined line will begin in the second half of 2026.
While specific opening dates have not been publicly confirmed, transport advisories and community updates point to an inaugural timetable commencing in late 2026, following completion of trial running, safety assurance activities and final regulatory sign off. In the meantime, bus services and alternate suburban rail routes continue to substitute for the closed Sydenham to Bankstown section.
The extended timeline has drawn attention to the challenges inherent in overhauling long established urban rail infrastructure while keeping the wider network moving. However, planners argue that the resulting step change in capacity and reliability will support long term growth across Sydney’s inner west and southwest regions, where population and housing are both intensifying around new and upgraded stations.
What the New Driverless Metro Means for Passengers
For future metro passengers, the most visible change on the converted corridor will be the arrival of the same six car, air conditioned driverless trains that already operate between Tallawong and Sydenham. These trains are designed for rapid boarding with wide doors, continuous walk through interiors and dedicated areas for wheelchairs and prams, all of which are intended to handle high passenger volumes during peak periods.
Service plans published in earlier project material suggest that residents along the former Bankstown line will benefit from both higher frequency and longer operating hours compared with the previous suburban rail services. The automated system allows trains to be added or removed from service more flexibly, supporting “turn up and go” frequencies at busy times while maintaining regular connections in the evenings and on weekends.
The metro conversion is also closely linked to broader land use changes, with planning documents indicating that improved rail access is enabling higher density housing and mixed use development around several stations. This aligns with New South Wales government objectives to focus new homes and jobs near high capacity public transport, particularly in Sydney’s growing southwest.
As the final tests proceed and the 2026 opening window approaches, the South West Metro project is increasingly seen as a template for other Australian cities that are exploring automation on existing rail corridors. The performance of Sydney’s first full length driverless line will likely inform future decisions on whether and how to extend automated metro technology to additional routes.
Sydney Metro – Southwest Metro completes trial running phase
Sydney Metro – Sydenham to Bankstown project overview
NSW Government – South West Metro conversion period to be extended into 2026