Key Points
- Glasgow’s Subway is set to shut on Sunday for driverless train trials and testing work linked to its modernisation programme.
- Strathclyde Partnership for Transport has said the closure is needed for final testing of new signalling and communications systems.
- The shutdown is part of a wider £288m upgrade programme for the Subway.
- SPT has said the network is moving towards driverless operation from 2027, which would be the first system of its kind in the UK.
- The line’s future changes include longer operating hours once unattended operation begins, subject to review.
- Earlier SPT notices also said the testing requires 2,000 miles of fault-free running before new trains are handed over and introduced into passenger service.
Glasgow (Glasgow Express) July 18, 2026 – Glasgow Subway to close on Sunday in step towards driverless trains (The National) July 18, 2026 – Glasgow’s Subway is due to close this Sunday as a new stage of driverless train trials continues, with the temporary shutdown linked to testing and modernisation work on the network.
As reported by STV News, the move follows a request from Strathclyde Partnership for Transport, which said it wanted closures on July 19, August 16, August 23 and August 30 for final testing of its signalling and communications system.
The same report said the Subway’s operations will transfer to a new control room at the end of August, marking another step in a £288m modernisation programme.
BBC reporting said the closures are also tied to testing of the new system, with SPT seeking to carry out work on the same dates and to move operations to a new control room by the end of August.
The BBC also reported that platform screen doors, which have now been fully installed at uk/local/govan/">Govan, Partick and Ibrox, will undergo further assessments during the shutdowns.
Why is the line closing?
SPT has said the shutdowns are needed so the first new trains can complete fault-free running in the system before they are handed over by manufacturer Stadler.
In its notice, SPT said the new trains must complete 2,000 miles of fault-free running, which it described as the final stage of the critical train testing programme before passenger service begins.
Mark Toner, SPT’s head of engineering, said in the operator’s notice that the trains had already been tested off-site and in the system at night, but still needed the 2,000-mile fault-free run before introduction to service.
SPT also said that if a fault occurs during the run, the train is removed, repaired and the process restarts, which means the testing can take time.
The operator said further Sunday closures are expected later in the year to continue installing new communications and signalling equipment.
That means the present shutdown is not an isolated event but part of a longer programme of staged closures and testing.
What did SPT and STV say?
STV News reported that Richard Robinson, SPT’s director of transport operations, described the work as a major achievement in a Victorian tunnel system first operated in 1896.
He said the upgrade would bring more trains and longer operating hours once unattended operation begins, adding that the system should better meet the needs of the city region and its customers.
SPT’s public notice similarly framed the shutdowns as an important stage before the new trains can enter service, with Mark Toner saying users had been keen to see the new stock running.
The operator said this is “the last stage” in the testing programme before the trains can be introduced to passenger service.
BBC reporting also said the broader modernisation includes the transition to a new control room and the continued roll-out of platform screen doors.
Taken together, the reports show that the closure is being used to connect several parts of the upgrade rather than just one technical task.
How will passengers be affected?
The immediate impact is that passengers will not be able to use the Subway on the closure dates, which will disrupt regular Sunday travel.
SPT has said passengers will be kept updated through its usual channels, including its travel information accounts.
Earlier closures for testing have also involved replacement transport arrangements on affected routes, showing that the operator has previously tried to limit disruption where possible.
However, for the current closures, the main point is that the network itself will be unavailable while the testing and systems work take place.
For regular commuters, the biggest issue will be planning around the Sunday shutdowns and any knock-on effects from the continued upgrade work.
For the wider city, the short-term inconvenience is being presented as necessary to support longer-term changes to reliability, automation and operating hours.
What is the wider modernisation?
The Subway’s driverless project is part of a £288m modernisation programme that has already brought new trains into service.
STV reported that SPT aims to have vehicles running without drivers or staff onboard in 2027, which would make it the first system of its kind in the UK.
The upgrades are expected to support extended operating hours, with the network set to stay open until after midnight on Fridays and Saturdays and from 6.30am to 11.30pm on Sundays once unattended operation begins.
BBC reporting added that platform screen doors are already installed at three stations, with more work still needed across the full network.
This modernisation has been under way for several years, with earlier reporting noting the introduction of the new train fleet and the long testing process needed before full passenger use.
That history helps explain why the current Sunday closure is being treated as part of a staged transition rather than a one-off maintenance stop.
Background of the development
The Subway modernisation has involved new trains, signalling changes, communications upgrades and platform safety improvements.
Earlier SPT notices showed that Sunday closures have been used before to support testing and to accommodate the rollout of the new fleet.
In 2023, SPT said the Subway would close on selected Sundays to allow the first of the new trains to complete fault-free running before handover.
BBC reporting that year also said the trains were being introduced as part of a long upgrade programme and that shuttle bus support was used during some closures.
The current closures continue the same pattern, but with the focus now shifting from train introduction to system integration and preparation for unattended operation.
That makes the present shutdown a bridge between the earlier train rollout and the later move to driverless service.
Prediction
For daily Subway users, the likely short-term effect is more Sunday disruption while testing continues, followed by a more reliable service once the upgrade work is complete.
For passengers who rely on the system for weekend travel, especially in central Glasgow, the closures may mean more planning and occasional use of alternative transport.
For the wider audience, the main change is that the Subway is moving closer to unattended operation and potentially longer opening hours.
If the project stays on schedule, the development could gradually improve travel flexibility, but only after a period of continued shutdowns and system checks.
