I have said from the first viewing of the analysis that the DRL short will not accomplish much,
We disagree politically on a lot, but on this, we see the same thing: It's throwing a *massive* sum of money to fix the leak in the plumbing when the whole line is creaking, and the problem just moves somewhere else. Like St George.
Meantime the same investment put elsewhere will not only alleviate the crush, it will improve the overall system in other ways, not least in offering more meaningful trips for many, and added redundancy for when one route fails, which is starting to happen at greater frequency in Toronto as an overall run-down and minimally up-kept system inevitably fails in spots.
And then there's the massive problem of no Line 1 service for "a year" (is the popularly touted time figure) to build the centre island platform. At least the challenge at Union was far easier and didn't have another major line running underneath it. And I fail to see how Line 2 is not also going to be severely affected from this.
Whatever, it's not going to be Toronto's *direct* problem soon with a subway upload. I'm no fan of Ford's, or Tory's, or much of what's occurred in Toronto transit planning for generations, but here's hoping that Metrolinx will look at this again, and realize other than minor tweaks (elevators, signalling, etc) it's best to leave what's extant intact, maximize the investment already in it, and future investment goes into parallel service means.
I'm absolutely all for the Relief Line, but one that offers *Real Relief*, not a bleed off to prevent the overstretched balloon from bursting, but to replace it entirely, and allow the balloon to go back to working the way it was at a design limit pressure. I certainly see trains in tunnel doing it, I don't see them being old school subways. And they must connect into the regions. It will be provincial money paying for this. It's only fair that the Scarboroughs and outer burbs (regions) get benefit too, and that's not with "subways". It's going to be under the "Rapid Rail" umbrella (RER, Metros, and LRTs).
There's lots of excellent models to follow for guidance on the business and technical cases.