I had a speculation/question for this thread, but first I have to say.. Those highway maps are absolutely vomitous. I don't know that I've ever seen the detailed versions before.
Knowing that the the RER network isn't planning on using the the Richmond Hill line, would it be possible for the midtown corridor to allow for RER expansion on that line? I know a lot of the line travels through the Don valley so it's not currently considered viable for frequent service. There is a missing link at the DVP that would need some kind of bridge. I have no idea what the economics or viability of doing this is, but it seems like maximizing the use of current corridors should be a priority when Metrolinx eventually takes control of the corridor.
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