ShonTron
Moderator
I'd support this, and I would love if the city gave this as a routing option for us to weigh its benefits. In case you weren't aware this alignment actually is a former rail line (Canadian Northern Railway). One issue though is that since it was obliterated and developed decades ago, the City/TTC would have to obtain subsurface property rights from all the homeowners along the route. However, since the subway would only travel under the backyards, and not the buildings themselves, this could be possible I think. So yeah, the alignment is there, and it's a straight shot from Kennedy Stn to McCowan. It should be looked at imo.
There are a number new detached houses and townhouses built in the CNoR right of way in the 1980s and 1990s, such as at Midland Avenue. A deep bore might work if we're just talking backyards, but I'm not sure if it's under basements of residential properties.
And yes, coffey will be taking a an all-exclusive vacation courtesy of UrbanToronto.