Rainforest
Senior Member
How would Wilson make sense?
That might look odd at the first glance, but I can think of a few advantages of connecting at Wilson instead of Downsview:
1) It might be easier to connect the new Sheppard tracks to the Spadina and Wilson yard tracks. Aiming at Wilson means that the Sheppard line will run under Sheppard from Yonge to Bathurst or a little further, then tunnel south-west, emerge just west of the Spadina tracks, and run south parallel to them.
In contrast, aiming at Downsview means that Sheppard tracks will run perpendicularly to Spadina tracks (although they can gradually turn south around the yard after crossing Allen Rd).
2) Wilson is a better route than Sheppard W for a westward rapid transit extension. Wilson is longer, and is located halfway between Eglinton and Finch, two other emerging routes.
So, either the subway can be extended westward along Wilson in future, or Wilson LRT can be built. Either way, the Spadina / "Sheppard" subway connection at Wilson will lead to fewer transfers than their connection at Downsview.
Note that the distance from Yonge / Sheppard to Wilson Stn is almost same as to Downsview Stn, as the Spadina subway line tilts west. So, the construction cost should not differ much.