While other cities can build proper bus & HOV bridges or tunnels, Vancouver is reluctant to augment its narrow bridges.
https://www.vancourier.com/news/six-fun-facts-about-the-lions-gate-bridge-1.23130030 LGB https://www2.gov.bc.ca/gov/content/transportation/transportation-infrastructure/projects/lions-gate
Some cities can have a bridge wide enough to accomodate a train component, or at least have a train bridge or tunnel close by. Unfortunately, Vancouver has been locked into a multigenerational chokepoint planning agenda. Most real cities try to do things to improve on their bottlenecks.
