https://en.wikipedia.org/wiki/Bus_lane
https://en.wikipedia.org/wiki/Public_transport_bus_service#Express_bus_service
https://en.wikipedia.org/wiki/Bus_rapid_transit
Unfortunately, Greater_Vancouver is one of the worst examples of Regional_Transportation_Planning. With so many narrow bridges and a refusal to build a proper network of bus-bridges, things remain chaotic on the existing inept bridges.
The SkyTrain_(Vancouver) should have been designed to be a little like a light rail version of the Chicago_L Trains. However, instead of designing the stations to eventually accomodate 8 car trains, like the Chicago_L, the Vancouver maximum was a 6 car train of the Mark_I_fleet. Shorter railcars & shorter trains, that's the name of the congestion planning game in backward BC.
As of late 2024, the first 2 SkyTrain lines are still only running 4 & 2 car trains, not counting the original smaller coaches. The 3rd line or Canada_Line, is only running 2 car trains. All 3 lines should have been designed to eventually have 8-10 car trains, but that would be properly planning for future capacity on a multi-billion dollar system.