Altnabreac
Established Member
How much additional capacity would Glasgow require in order to meet future needs based on confirmed or realistic potential new services/increased frequency on existing services?
HS2 - 1-2tph
E2G HSR - 3tph
East Kilbride - 2tph
Neilston - 2tph
Circle - 1tph
Airport Tram Train - 4tph
Renfrew - 2tph
Total - 15-16tph
Anything else?
I think the maximum Cross Border demand is potentially something like:
- 2tph HS London,
- 1tph HS Birmingham,
- 1tph HS Manchester,
- 1tph HS Liverpool,
- 1tph WCML legacy service,
- 1tph ECML legacy service via Edinburgh
It's probably more likely that 2-3 of those services would be 1tp2h so 5-6tph is a more realistic demand.
At the moment you are looking at 3-4 tph demand at Glasgow Central for these services (2tph VWC, 1tp2h TPE, 1tp2h cross country via ECML).
So for your theoretical maximum you maybe want to allow for an increase of 3-4tph rather than 1-2tph.
Domestic demand wise I could imagine a few more services than above:
I'd suggest the maximum demand for E-G HS2 might be 4tph rather than 3tph although you could run the ECML cross country service in the 4tph slot so there might be an element of double counting here.
You might want to consider a 2tph Bridge of Weir reopening. It keeps appearing in things like the STPR but never quite making the cut but if you are looking 30 years into the future then demand might be there.
In Inverclyde you could potentially see there being demand for 2tph to Wemyss Bay in future (subject to infrastructure work), with Greenock going from 3tph to 4tph for a net gain of 2tph.
In terms of Ayrshire I could imagine Largs being served by 2tph as well for a net increase of 1tph.
You could maybe also see an electrified Kilmarnock line with a 2tph service to Kilmarnock (as now) but with an additional 1tp2h Dumfries service running fast between Kilmarnock and Glasgow to keep time with electric stopping services.
So that is an extra 9tph to take you to 25tph. For that sort of extra capacity you're looking at needing a Cross City Tunnel rather than just a tram train arrangement for Cathcart circle services.