Some months ago, the Mayor of the West Midlands published a similar map showing proposals for rail and metro in the West Midlands by 2040.
Sadly, as with the maps for Glasgow, I don't think much of this will be built, especially after COVID-19, but it doesn't do any harm to have a vision of what public transport in your city will look like in the future.
In Birmingham the tram network is being expanded, and it is proposed to bring a freight only line back into use for the Commnowealth Games.
For Glasgow, would it be feasible to convert part of the network such as the Cathcart circle to a tram, and then have street running sections in the city centre as happened with the Altrincham and Bury lines in Manchester?