^I did just check in briefly on REM progress, and it is having a lot of issues, almost all predictable due to the nature of the investment:
https://www.cbc.ca/news/canada/mont...-network-as-chorus-of-concern-grows-1.4617428
https://montrealgazette.com/news/lo...to-scrap-the-rem-and-extend-transport-network
but our mutually (and more) agreed acknowledgement of how fast it's moving in terms of construction stands. REM's pains are not technical, but organizational and political. A case to learn from. The funding model certainly makes a point of being possible in Canada, and on a massive scale.
Yes, I'm very impressed by the progress of REM. Seems the Skytrain is expanding soon to Langley and UBC as well, which if done I'd consider their rapid transit system complete. And didn't Madrid go from virtually zero subways in the nineties to over 200km of it today? Not to knock what's been done here of late (TYSSE, Crosstown) but demand has definitely outpaced the rate of growth (expansion). And with the population expanding by 100,000 per year in the GTA, it's gonna be a whole lot darker before the dawn! By the time the 8-stop phase one of the DRL is complete, the second and third phases (north to Sheppard, west to Roncesvalles) will need to begin almost immediately.
I take that one step further even: In the next year, figure out once and for all what rolling stock and gauge is to be used, as the choice will forever 'set the mould' on what can be cast from there-on, and the attractiveness for private investment in a P3 arrangement. I've made it clear prior what my choice is, and this should be especially easy for Metrolinx once the inevitable upload happens:
Put all the eggs in one basket: Make it Rapid Rail, and don't just build one stretch, and then twiddle thumbs, commit to a 'scheme of size' that will benefit the entire GTHA, not just Toronto, but build continuously for the entire project, opening segments as they are completed.
It's going to be a massive investment, the funding of which is a topic in itself (I don't see how it can be anything but P3+) so instead of trying to keep adding-on to a crumbling subway that needs upkeep multiples more than expansion, make the giant investment of 'Regional Rapid Rail' loop through Toronto, or don't do it all.
For what it's worth, I'd tie Scarborough into it too, using the SRT guideway (already standard track gauge) and connect it in on to the Unionville tracks, alternate trains going to Unionville or STC with a later extension from the STC as per the SRT was always proposed to do.
Junctions can also be made into Union or into the core, and through to the western side. One size fits all. The time for bitty piecemeal projects stopping and starting has to end. Toronto now is a mish-mash of incompatible systems. It's time to look at the bigger picture, and where to put the large sums of money, public and private, to best use. And that's making the same system good for local and long distance regional.
The three Rs: Regional Rapid Rail.