A side thought of my own, I'm really glad that all of these new highways/extensions within the GTA are all planned to have accompanying Transitway projects. The fact that there are Transitways being planned for the 407, 413, and 427 is honestly pretty wild. Imagine having a BRT corridor in the future that could span from Vaughan to Fort Erie, assuming the 408 will have a similar Transitway allocation. While these transit routes may not be built for some time, I think there is much more foresight going into these greenfield highway projects than just mindless sprawl and we take it for granted. Certainly more foresight than the projects that we are seeing in US cities like Los Angeles, Austin, Denver, or Houston that are straight-up planning on razing neighbourhoods for more lanes with little to no transit planning whatsoever.