Clive. wrote:
In message , R.C. Payne
writes
Glasgow Subway (though I doubt that will be extended)
When it was first opened after complete refurbish, all the trains were
two car sets, now they're all three car sets, implying greater usage, so
there is hope yet.

I still would be surprised to see such a non-standard system with even
smaller than tube sized trains on narrow gauge track extended, rather
than a separate line built to more conventional standards built.

Robin