It's always interesting to see what Perth and Seattle are allowed to do, simply because they aren't bound by any BC type restrictions.
https://en.wikipedia.org/wiki/Perth#Transport , https://developmentwa.com.au/projects/redevelopment/new-northbridge/overview , https://en.wikipedia.org/wiki/Graham_Farmer_Freeway#2013_tunnel_expansion
https://en.wikipedia.org/wiki/Seattle#Transportation , https://en.wikipedia.org/wiki/State_Route_99_tunnel
Of course Vancouver, BC would never allow anything like the Northbridge_Tunnel or the 99_tunnel to run under the downtown and connect to the North_Shore.
https://twitter.com/DriveBC/status/1585381176919076864/photo/1 7L funneled into 3 lanes, a classic bottleneck. Even though an express bus tunnel with a provision for 2 train tracks would immensely improve this transportation corridor, it's not allowed. That's because Vancouver refuses to take a big city approach. Indeed, the Vancouver mentality is to emulate a provincial backwater mentality for as long as possible.
https://twitter.com/DriveBC/status/1595492088057335808/photo/1 LGB 3L
