I'm kind of thinking changing King and Riverside into a way changing road. I don't know how to explain it better than to show you a picture of what I mean
http://upload.wikimedia.org/wikipedi...Lions_Gate.jpg
So during rush hour in the morning, King and Riverside flow into downtown, and then when rush hour around 430 comes, all of the traffic moves out. I have no idea how the city would execute the rest of the part (like the lights at Wharncliffe) but I'm sure there's a way.