https://www.youtube.com/watch?v=vMwKgT4ZUvQ It is utterly foolish to not have enough space for a commuter train to run above, or in the middle or underneath the widest highways.
Whether its 10 lanes or 20 lanes wide, unless there are 2 dedicated bus lanes and 2 HOV lanes, the highway will get clogged up.
The Vancouver and BC approach is to try to funnel everything into just 2 or 3 lanes each way. Then there just isn't enough space to have 2 bus lanes and 2 HOV lanes. Greater Vancouver has gone in the extreme opposite direction of Houston, L.A. and Toronto.
While a wide Greater Houston highway has lots of space, but without 2 bus lanes and 2 HOV lanes, everything gets plugged up. In contrast, Greater Vancouver has most of its bridges and highways so narrow, there isn't enough space to accomodate a proper express bus and HOV network.
Plus, there is no commuter train tunnel near the Lions+Gate+Bridge or even for the Massey+Tunnel+replacement. Thus, they are the best examples of BC choke-point planning. Despite having twice the lanes as the inept 3 lane LGB, the Iron+Bridge never had a bus and HOV bridge built next to it. Plus, no commuter train bridge. It's another fine example of BC choke-point, bottleneck planning.
A north and south Boundary+Road bridge system would provide direct access between the North+Shore, Richmond+and+Delta, but that's what a proper big city would do. Backwards BC has quite a problem with thinking and building big.
