Sydney Metro to Open With Six Doors Sealed Shut at Four Stations

Sydney Metro will open its final south-west section with six platform screen doors deliberately sealed shut—a decision that lays bare the engineering complexity of bringing a $30 billion rail project to completion and the exacting demands of Australia's national rail regulator.

Three of those sealed doors are at Dulwich Hill station, with one each at Canterbury, Campsie, and Marrickville. They sit on the curved sections of platforms where the geometry creates the widest gaps between the driverless trains and the platform edge. When a train stops, the doors that would normally open to let passengers on and off will remain closed at these points. The corresponding doors on the train carriages themselves will also stay shut. It is a workaround, not a solution—a temporary measure to allow the line to open while engineers continue working on the underlying problem.

Transport Minister John Graham framed the decision as a safety-first choice, one made in consultation with the regulator. "It is a complex rail system, and that's one of the reasons why we're making sure that at first passenger service, we can meet the safety case," he said. The sealed doors ensure there are no "minor safety issues" when passengers board for the first time. Two state approvals, including one from Fire and Rescue NSW, have already been completed. The final paperwork is being prepared for submission to the national rail regulator, whose own approval process Graham described as "serious" and not to be rushed.

The curved platforms themselves required 170 mechanical gap fillers—small hydraulic platforms that extend toward the train carriages to bridge the space before screen doors open. These devices are installed across eight stations along the final 13-kilometre section. They represent one layer of the engineering solution. The sealed doors represent another: a pause, a holding pattern, while the system is deemed safe enough for public use.

Coalition transport spokesperson Natalie Ward called it a "monumental stuff up," one the government would have known about for months. "Only this government could deliver a brand-new metro late, then open it with the doors shut," she said. "Taxpayers paid billions for every door to work." The criticism cuts at a deeper frustration: the project is already years behind schedule, and now it will open incomplete.

The delay has real consequences for commuters. Since September 2024, tens of thousands of people have relied on replacement buses each day between Sydenham and Bankstown. The T3 heavy rail line was shut to make way for the metro's final section. In 2018, the Coalition government promised the closure would last three to six months. By the time it actually happened in 2024, the Minns government was already warning the shutdown might stretch longer than the 12 months it had previously estimated. Now, more than a year into the closure, the line remains shut.

Graham would not commit to a specific opening date, saying only that the government was "very confident" passenger service would begin "very shortly." A month earlier, at a budget estimates hearing, he had said he expected to announce a date by the end of September. Confidential Sydney Metro documents had cited mid-October as the most recent target, though that timeline now appears uncertain. The regulator's approval process will take time, and Graham made clear the government will not pressure them to move faster.

The six sealed doors are a visible reminder of how much remains unsettled about this project—not just the engineering, but the regulatory pathway, the timeline, and the trust between the government and the public waiting to use it.