For some considerable length of time we've been talking about Glasgow's subway system as an asset which hasn't quite delivered for the city centre in the way that it potentially could.
There have been a number of limitations on a system which is now ageing badly, with almost 40 years gone since its last serious refurbishment created the so-called "Clockwork Orange" system.
The Subway carries 14 million passengers, making a big difference to what would be happening on the roads if it didn't exist - can you imagine all those people trying to travel in the city in cars or on surface public transport?
But we have always had challenges with operating hours in the evenings and at weekends - especially Sundays - finishing much too early for a tourist city with a growing night and leisure economy. They have never been as flexible as we needed them to be.
However SPT has now made some very welcome announcements about a new major programme that they have underway.
In particular, a deal has been done to modernise the stations, of which we can already see evidence at Hillhead, and which will then move round the network - with Partick next in line.
We will also have refurbishment of the rolling stock with the likelihood of driverless trains, offering opportunities for cost savings and a much more efficient service which will have a positive effect on ticket prices, for reinvestment in the system and for hours to be expanded in the way we've always needed.
The introduction of smart ticketing which, although initially restricted to the underground itself, we would hope will work sufficiently well to be picked up by other operators in bus and rail in due course.
It was inevitable that some of the media coverage has focused on job losses that are to come - but unfortunately these job losses, are the price we will have to pay for some of the more dramatic and welcome shifts in practices which we are soon going to see on the Subway.
I was recently happy to be supporting work being done between SPT and Airlink to promote the Park & Ride offer at Shields Road station, a genuinely sensible approach to maintaining access into the city centre by a combination of car and Subway.
Hopefully that will succeed, and we'll have more consideration of how such a scheme can be expanded in the future.
So there are obviously now lots of things going on at SPT that should be beneficial to the city centre.