I love how some suggest just making a quick and cheap pre-fab bridge is a better and safer alternative to a tunnel. A bridge here would be used to carry a quite the load, and would have to meet accessibility requirements so that's two elevators on either end. It would have to be high enough to have enough clearance for trains but also low enough to fit underneath the Gardiner. They haven't finalized if they are adding an east-west street in Liberty Village and whether they are extending the Streetcar tracks to Dufferin.
A quick-fix bridge is exactly what not to do here, and the reason this stuff takes so long is that we have to meet safety requirements to avoid tragedies like the "fast bridge" in Florida a few days ago (
Several Dead After Walkway Collapse in Miami), and there are several stakeholders in the area like the City, Metrolinx, TTC, and Private Land-owners.
If you don't like the tunnel, you can walk to Dufferin or Strachan and cross over the tracks that way. The bulk of our season is in the spring and summer, it's usually a nice walk.