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Originally Posted by moncton golden flames
Any idea how much of the 8th avenue tunnel is actually built right now?
Would completing the 8th Avenue tunnel, sinking the red line allow the Green Line to occupy 7th Avenue and move up Centre Street? I know getting the Green Line to 7th might be a challenge, but that seems easier than what is presented now?
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About 5%. Instead of building parking levels under the municipal building, they basically built it as a tunnel. (ie. 1 block/~150 meters down, ~2300 meters to go)
You hit on what I think is the biggest missed opportunity here, but it's essentially impossible because we've contracted for low floor trains and designed the SE line for low platforms. I thought there might be some creative solutions where you could even interline the green line with the existing underpass under CP tracks, but apparently the trains have different voltage and it's just not possible.
But the smart move wold have been to stick with high floor trains for the SE, and just do whatever makes sense for the north in isolation (low floor running at grade, or go for a fully dedicated ROW (elevated or underground where necessary) that facilitates automated trains).