Issue in Toronto has always been over capacity of the infrastructure. Way too many ppl that the city cant support. When they designed this city, they built a damn highway across the harbour front and now they're paying for it. Pearson has reach capacity and now that they dont want noise pollution downtown, they'll have to compensate some how. I don't think Downsview will ever happen for any airline to operate scheduled flights, but we honestly need a plan B. For people living out east and even in the golden horseshoe it can take up to 2 hours in rush hour traffic just to get to an airport that is not even considered "Toronto". Add check in times and there you have it, an hour flight to New York that should take 3-4 hrs total becomes a flight to Hong Kong. I dont support Bombardier's vision and timing of their products but its sad to see such slow progression, for a city that has the most money and people.