Track maintenance is about to take another major step forward, with the coming deployment into service of six state-of-the-art tilt wagons which will reduce time lost when train services are shut down.
Tilt wagons allow the safe movement of preassembled sections of track - known as "turnouts" - which can be lowered and installed rather than having to be built on site by rail workers with welders and other labour-intensive equipment.
Each new concrete turnout - also referred to as a set of points - allows the replacement of old timber sleepers.
Between five and seven hours of train service disruption time is saved on each job where a tilt wagon is used, Sydney Trains estimates.
Due to their size, prebuilt turnouts can't be moved by flat wagons around the 1,700-kilometre network and Sydney Trains' engineering fleet currently only has two tilt wagons which have been in use for more than two decades.
The six new tilt wagons - part of a $15 million investment by the Minns Labor Government - have been trialled over recent months since arriving in the country and are now being prepared to enter full service by July following final testing, crew training and commissioning.
The technology, not previously used in Australia, was successfully used during a track possession weekend at Lidcombe in late December and Medlow Bath in February.
The deployment of tilt wagons is another shot in the arm for maintenance since last year's Independent Rail Review which looked at the overhead wiring failure that brought the network to its knees for two days in May 2025 and recommended an overhaul of how rail maintenance is delivered.
The Minns Labor Government has invested more than $450 million to upgrade track, signals, overhead wiring and drainage, as well as implementing "maintenance critical zones" starting with the City Circle and Homebush-Strathfield corridor where multiple lines converge.
A separate, $35 million Reliability Maintenance Program focused on critical maintenance zones is running six months ahead of schedule.
The rollout of new intercity Mariyung trains and refurbished Tangaras is also improving reliability.
Acting Premier of New South Wales Prue Car said:
"The Minns Labor Government continues to address critical rail maintenance, and this $15 million investment will reduce time lost to disruptions on the Sydney Trains network.
"On a massive rail network, carrying millions of people every day, it's critical we focus on essential work to minimise headaches for commuters.
"Our government is ensuring essential track work is completed faster, meaning fewer disruptions for passengers across NSW."
Minister for Transport John Graham said:
"Amid higher fuel prices and more people using public transport it is essential we reduce disruption and keep improving the reliability of the train network.
"Tilt wagons allow us to do more of the work away from the tracks and take less time during that critical period when train services are impacted.
"Over time, this will mean less time lost to weekend trackwork and less time for rail passengers spent on replacement buses.
Chief Executive of Sydney Trains Matt Longland said:
"Sydney Trains engineers are really excited about these new, modern tilt wagons to allow them to carry new concrete turnouts to site and remove old timber ones off site. The new tilt wagons are both safer and quicker than their predecessor.
"This modernising and expansion of our track maintenance equipment will allow us to get more bang for our buck during each weekend track possession, while also ensuring our staff are safer on the work site."