https://www.nsnews.com/local-news/agriculture-shippers-call-for-replacement-of-north-shore-cn-rail-bridge-12291086 This BC bottleneck-chokepoint mentality is ridiculous!
Unfortunately, due to a lack of properly planning for future infrastructure needs, the Thornton_Tunnel and the Second_Narrows_Rail_Bridge weren't designed to be double tracked.
The New_Westminster_Bridge is also another single track, bottleneck-chokepoint.
https://en.wikipedia.org/wiki/New_Westminster_Bridge#Proposed_changes
https://www.nsnews.com/economy-law-politics/vancouver-council-calls-for-reopening-of-container-truck-entrance-to-port-clark-drive-11231559 More trouble and in efficient B$.
https://www.reddit.com/r/vancouver/comments/1t9pgs8/lions_gate_bridge_at_night_oc The classic 3 lane BC bottleneck-chokepoint. No need for a bus and commuter train tunnel around there, because that's what a proper city would do.
https://www.reddit.com/r/vancouver/comments/1teae3s/another_beautiful_post