Would there still be 110,000 trying to drive this way? I doubt it.
And shouldn't we be looking at peak hour? Even the AWDT is going to seem high, because there is always traffic - but seldom any traffic jams.
Some of the 110,000 would probably spill over to local roads and try to go to alternate routes like Richmond, Queen, Bloor, Eglinton, etc.
When you just look at the peak hour everything seems really small and insignificant. For example, the Yonge subway 'only' carries about 30,000 riders in the peak hour. Why do we have a multi-billion $$$ subway just for 30,000 people?
Hence this is why the 5,200 drivers in the peak hour or 3% of drivers into downtown argument is silly.
The existing east Gardiner is, admittedly, overbuilt by a lane in each direction (after all, it was to connect to an eastern Scarborough highway), which rarely jams. But that doesn't mean removing it is easy and won't lead to traffic problems.
Personally I would love a boulevard, but first the proper transit needs to be in place.