Prediction if they build this:
- 7 years the congestion will be abysmal because of all the construction impacts
- opening day people will think wow this is amazing... it worked! Nevermind that ending construction alone would have reduced congestion.
- 7 years later it will be just as bad as the day before construction started.
Even the MTOs own study shows 413 congested... it doesn't exist at all, is on the periphery of the city, and doesn't solve full east-west connectivity. How could 401 lanes through the middle of the city and the only cross city route not just be absorbed almost instantly?
Will it add capacity? Sure. Will it do anything for congestion? No. So it comes back to what is the real problem to be solved and other means should be explored.