Toronto Traffic Solution?

I think it is safe to assume that population in Toronto is going to continue to grow. More people will come, more condos will be built and more cars will be out on the roads.
Environmentally, the ideal solution to this growth is that everyone ditches their car and lives by public transit. The reality is that people need cars. There are various reasons and excuses why we won’t get rid of our addiction to our automobiles, and it’s time for politicians to accept this fact and begin to address the congestion problem, without the pie in the sky notion that everyone will just hop on the TTC.
Highway 401, the DVP and the Gardner/QEW are parking lots during rush hour. Many studies have shown that production is lost with people sitting in traffic. When the 407 was built there were many that bemoaned paying tolls but the ETR is doing very well financially even with ever increasing toll rates.
Maybe it is time for some outside the box thinking to help solve our traffic crisis. Thinking such as the introduction of the double decker highway.
Building a second level over top all the existing highways is the only solution to an ever growing traffic nightmare. The reality is that there is no room to build any more highways without moving further north of the city, the existing highways have been deemed to need repairs and the original designs were not made for a city that has swelled as much as Toronto has.
By building a second story, new tolls can be introduced to alleviate costs of building and maintaining, as well as having safer roads in the winter since half of the main arteries would be hidden from poor weather conditions. Environmentalists would scream against such an idea but carbon emissions are worse when a vehicle is idling in traffic, than traveling at a brisk pace.
Naysayers would bring up the disaster that happened in California when the two level highways collapsed killing drivers commuting home. Building technologies have improved over the last 20 years since that event and the fact remains, Toronto is not exactly sitting on a fault line.
The costs of such a project would be astronomical, but thousands of new jobs would be created for years to come and the simple fact is, if congestion keeps getting worse in the GTA, alternative solutions won’t be any cheaper.
Cars aren’t going anywhere, and it is hypocritical of our governments to tell us to support Ontario’s car manufacturing industry, and yet, do everything in their power to get us out of them.