Maybe Hamilton "deserves" a subway - somebody tell Thug and the bucks will start rolling in!
I think a subway is overkill except for a one-station hop on the escarpment climb -- a tunnel ramp section of A-Line.
It would make Hamilton LRT climb the escarpment more easily by giving weather protection to the steepest part of a theoretical Hamilton LRT A-Line. The alternate routes can be the James access, but a tunnel ramp would give weather protection to the uphill/downhill climb.
Basically between the Lower City St. Joe Hospital and the transit station at Mohawk College; I napkin-mathed that to be an approximately 5-6 degree slope between the two stations -- this is quite within the capabilities of the LRT, and same angle as planned slope at the CP railroad underpass near Delta -- and near a similar slope angle as Toronto new streetcars on the steepest slopes in Toronto.
There's a reason I put it in Quotations.
The point was that Metrolinx still cheaped out by not building a heavy rail line. That's okay, but the point was that Hamilton will likely face a similar fate.
The Elginton Crosstown LRT will be a faster 'subway' (in average speed, stopping time included) than the Yonge subway south of the Bloor Line.
I was on a subway in Paris that used LRT trains and it performed pretty well. Shallow railbed and pantographed, it kinda surprised me. I recall it was far better than Ottawa LRT.
They're perfectly capable of venn-diagram overlapping a subway. Maybe not has high capacity as a heavy rail subway but the light rail subways still can have an average speed faster, if designed well.
Hopefully Metrolinx avoids the mistakes of Ottawa LRT and makes sure that the light rail subway is a well-performing one. Proper European-style traffic priority systems for the surface sections will be key.
But yes, the futher watering-down of the Hamilton LRT, is indeed a potential concern. Such as being built with only single 30 meter LRVs, without 60 meter allowance for many years, and/or loss of dedicated-corridor sections, etc.