That's not true at all, it entirely depends on who is doing the ordering and for where.
I'll stand by what I said. I said "vast majority of rolling stock being built" (i.e. rolling stock on the assembly line) is at least GoA2
capable. That doesn't necessarily mean all the
lines are GoA2 capable or operating at that GoA on opening day.
Whether one considers that 75% or 98% is what determines the trueness of that claim. As an aside, the 4 Metrolinx LRT lines all have CBTC that enables GoA2
capability, despite not really needing it.
Back to metros: I'll admit, I haven't counted
every single upcoming metro line to be totally certain, but for the lines on the horizon, "vast majority" I have read about have
trains that are GoA2 capable.
Consider this, China now has ~50% and growing, of all route km in the world. That should be a hint. Another would be, how many new metros are being built without CBTC? CBTC doesn't necessarily mean GoA2, but in most fully grade separated metro cases they are synonymous. Certainly enough to say the rolling stock is GoA2 capable.
There's a reason why the number of lines that have been upgraded from no automation to GoA4 can be counted on one hand.
There have been more than I think you are aware of. Or one hand is hyperbole.
But going from GoA0 or even 1 to 4 is a bit of a contrived argument. It's normal for lines to be GoA2 capable from the outset now. An upgrade to GoA4 is relatively easy and common, especially if PSDs are already installed.
GoA0/1 going from fixed block to moving block CBTC and achieving GoA2 is common too.
But that ignores the huge cost that is required to bring the rest of the system up to that capability.
I am aware of the "huge" cost, that's more or less what I said in my original post. (My main oversight? is) I didn't make an exhaustive list of what it takes to achieve GoA4 or "driverless trains" (it's not just the trains LOL). I think the costs are "huge" for Toronto, especially given the projected PSD retrofit prices, asinine compared to even Japan or Australia.
It's not necessary, but I think it would make procuring driverless trains a tad bit easier. Among other small potential benefits.
Main thing is driverless trains, which I think would be too expensive and disruptive to implement given the costs of today. ATC, PSDs, GoA4 driverless trains.
I'm hoping construction to enable driverless will be quicker and less disruptive with smarter robots or something.