[niwell]

^Yeah an "ultra-express" raised portion or something similar - even in key areas would probably do the same for a lot less in cost. The big issue with the 401 of course is not just that it's the main (non-tolled) east-west route across Toronto but also a major trucking route. A solution that separates through traffic could work.

Of course Doug Ford LOVES the idea of tunnels so that's probably where the idea originally came from.