Interesting. Do stubs of these plans exist? I'm planning to roadgeek around the GTA and see if I can't find remnants of said projects (this is next summer's roadtrip, if you can't tell from sporadic activity from me in this thread (wow I think I'm smarter than the previous kid who was on here, and he's older than me! sorry)).
There's some interesting expressways too. Not sure if Highway 2A still exists, but it seems to be interesting.
Yes, there are bits and pieces of the shelved Toronto expressways that were indeed built.
Allen Road (Spadina Expressway)Obviously this one was the most controversial one that saw any construction. Although I have never found any of the original plans, something tells me that if the Allen was built all the way south to Bloor, that the subway line which exists would have been at grade in the median for the entire length.
I may have gotten ahead of myself, but the Allen has the Spadina subway line running in the center median.
The Allen ends SB at Eglinton, and there is always a nasty backup at the end no matter what time of day it is. Indeed I will usually never ever take the Allen SB for any reason unless if I'm going to use the 401. Both the Lawrence and Eglinton exits face nasty backups by a poorly timed traffic signal.
Black Creek Drive (Highway 400 Extension)I'm not exactly sure how the 400 looked south of the 401 prior to 1982 (when Black Creek Drive was opened) but I believe that the 400 had a forced exit at Jane Street. Black Creek Drive is an expressway with traffic lights, and yes it is that stupid. Incidentally, the entire Black Creek Drive could be converted to freeway if they wanted to, but I wouldn't count on that happening ever.
I have on occasion taken Black Creek Drive NB in PM Rush while doing Uber, and those intersections on Black Creek Drive are particularly nasty in how traffic backs up on Black Creek Drive.
Highway 2A (Scarborough Expressway)Highway 2A is indeed known as Kingston Road in this stretch. This was indeed supposed to be part of the cancelled Scarborough Expressway.
Crosstown ExpresswayWhile nothing really was built of this freeway. Look at the Bayview/Bloor exit on the DVP, that's a trumpet interchange, this long exit ramp is a connector road that has an interchange with Bayview before meeting Bloor at a T-intersection. Although I can not find any solid plans, it's generally believed that this connector road would have been part of the Crosstown Expressway if it were built.
Richview ExpresswayAgain while nothing substantial was built with this one. There are ramps from 427SB and 401EB that were obviously designed with the Eglinton exit on either road intended to be a freeway. Indeed, there is a BGS on this Eglinton Avenue "ramp" that reads (Martin Grove Road 1km)
Until very recently, maybe around 2014 or so. The land immediately north of Eglinton Avenue between Martin Grove and Royal York was nothing. This empty space was land bought for the highway. Around 2014 this land was finally sold off.
The only portion of freeway that was eliminated in Toronto was the Gardiner east of the DVP which originally ran to Leslie Street. I can't remember this actual portion of roadway existing, it was knocked down in 1999. I was a suburban kid, and I rarely went downtown in my younger days.
I don't really want to talk about the politics of all these expressway, because it will make my blood boil. Indeed, Toronto and the GTA face a massive transportation crisis in the future if growing trends with immigration continue. I can start a new topic on here if you'd like to discuss it. Not just expressways, but look at how much rapid transit was built since the cancellation of Spadina (1971). You'll find it's a game of political football full of nasty egos.