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Ontario Line Extension West of Ontario Place (Speculation)

How is it "convenient" when Exhibition Station is on a different rail corridor than the one used by the UP?
The west extension in the City 2025 consultation was from Exhibition, west, up Roncesvalles to Dundas West station. In theory a line could run along the rail corridor from there (though it's not my favourite idea).
 
Surely it would be more convenient to extend the line by staying in the same corridor
That's pretty much what I was saying in my more detailed post 130 minutes ago.

But if you use the 2024 city map below (for the purposes of consultation), and have the Ontario Line terminating, heading north/south, at Dundas West and Bloor. Then I don't think extending it along that corridor would then be inconvenient. More so a waste of an opportunity.

1764621812996.png

Interestingly, the May 2025 consultation map itself, lets you see enough detail, that they've deflected the line a bit to the laneway west of Dundas Street, south of Bloor. Presumably meaningless, as I doubt this would ever be built.
1764621997255.png
 
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To start, I'm not entirely sure if this post is within the scope of this thread, so I can totally move it if need be. But I was reading the last few pages and I was trying to imagine what a branched/interlined Ontario Line system might look like, so I made a very very (very) rough map. Presumably you'd need to reserve 2 tracks on the Kitchener corridor to run the Ontario Line trains, so that might make this proposal dead on arrival with only 2 (?) tracks being left for GO trains, but I really have no idea what the practicality of that would be.

I should note that I've cut the Jane line back to Moss Park somewhat arbitrarily, because I figure that you don't want the most frequent portion of the system to be the joint Ontario Line/GO corridor in Leslieville with 3 services running through the stations. I also have no idea if/where any of the downtown stations will have track crossovers, though, so I'm not sure which station should be the terminus for that service. If there aren't any track crossovers, you'd probably have to rework this to either cut the Pearson line back to Union, or send the Jane line down to Union and ditch the tunnel under Roncesvalles. But this is all just rough crayoning for a very very very far-in-the-future system. Thoughts would be super appreciated!
ontario line system.png
 
I think at least having Line 3 and whatever UPX becomes as the same technology makes a ton of sense, even if the service(s) are never branched/interlined.
The two Ontario Line tracks at Carlaw can't be shared with GO. Is there space for 6 tracks from Pearson all the way downtown?

Blue 22 ... at this rate it will be Blue 52!
 
To start, I'm not entirely sure if this post is within the scope of this thread, so I can totally move it if need be. But I was reading the last few pages and I was trying to imagine what a branched/interlined Ontario Line system might look like, so I made a very very (very) rough map. Presumably you'd need to reserve 2 tracks on the Kitchener corridor to run the Ontario Line trains, so that might make this proposal dead on arrival with only 2 (?) tracks being left for GO trains, but I really have no idea what the practicality of that would be.

I should note that I've cut the Jane line back to Moss Park somewhat arbitrarily, because I figure that you don't want the most frequent portion of the system to be the joint Ontario Line/GO corridor in Leslieville with 3 services running through the stations. I also have no idea if/where any of the downtown stations will have track crossovers, though, so I'm not sure which station should be the terminus for that service. If there aren't any track crossovers, you'd probably have to rework this to either cut the Pearson line back to Union, or send the Jane line down to Union and ditch the tunnel under Roncesvalles. But this is all just rough crayoning for a very very very far-in-the-future system. Thoughts would be super appreciated!
View attachment 700049
To add to your rough crayoning Lines 7 and 8 could have an interchange station (possibly replacing King-Liberty) at the intersection/area of Wellington & Strachan, where the Kitchener and Lakeshore corridors meet. Here you could have Line 8 switch corridors and terminate at Union.

Big bonus of this is to serve Trinity-Bellwoods and the hugely increasing density in Liberty Village on Ordnance and the ~4 large condo developments on King right up the road.

This is one of my favourite ideas I’ve seen on here. The doubling up of Line 8 for most of its route until it goes north up Jane is genius - the desire for commuting transit in this area is evident by how busy the UPX always is, and piggybacking off existing alignments to fill in those gaps would make a huge difference in the west end
 

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