COMMUTERS in Glasgow are facing weeks of disruption for repair works on the world’s third oldest underground system.
All services will be suspended tonight to allow four weeks of renewal works to take place in the “ramps and turnouts” section of the tunnels.

READ MORE: £100m overhaul of Glasgow's west end and waterfront to begin within 18 months

This section connects the surface depot at Broomloan with the tunnels and was installed almost 40 years ago.
The works are part of a £288 million modernisation programme of the subway, which opened in 1896. 
The last train will leave Buchanan Street tonight at 23.37pm on the outer circle to St Enoch and all stations south of the River Clyde.
The last train from Buchanan Street to Cowcaddens and all stations to the north of the River Clyde will leave at 11.29. Services are planned to resume again on Monday August 1.

READ MORE: £100m overhaul of Glasgow's west end and waterfront to begin within 18 months

During the four weeks a replacement bus service will be provided for Subway passengers who are encouraged to “turn up as normal” to stations.
The bus service follows the subway route with additional direct services to the city centre from key stations, including Park and Ride facilities at Bridge Street, Kelvinbridge and Shields Road.

Services will be every five minutes at peak times and every ten minutes off-peak.
SPT chairman Jonathan Findlay said: “To date, SPT has achieved all modernisation works without any disruption to passenger service. 
“We have now reached a crucial stage in the modernisation plan that requires us  – for reasons of safety for everyone involved – to suspend services for a short time during July.

READ MORE: £100m overhaul of Glasgow's west end and waterfront to begin within 18 months

"We apologise for any inconvenience to all passengers, but our full replacement bus service will mean they can still get to where they want to go.”