https://dailyhive.com/vancouver/downtown-vancouver-skytrain-service-delays-weekends
Ideally, if a subway or metro line doesn't have 4 tracks, 3 would be the next best thing. Then 2 tracks could always remain operational while the 3rd is being repaired. For the most part, Skytrain is just a double track system. Unfortunately, the YVR-Canada Line is even single tracked at the end of the line in YVR and in downtown Richmond. The Canada Line should have been the 1st phase of an eventual south extension to Delta and the BC ferry terminal. Plus, a north extension from Waterfront_station_in Vancouver to Lonsdale_Quay and the ferry terminal. This would be a vital link between Canada_Line and the Horseshoe Bay ferry terminal. Unfortunately, Vancouver and BC are about maintaining congestion and transportation inefficiency.
Perhaps someday, if Vancouver is ever allowed to function like a proper big city, the Dunsmuir_Tunnel could be extended under Stanley Park and the 1st Narrows to Park Royal and the ferry terminal. However, what's more likely to happen is that after the Dunsmuir_Tunnel reaches Waterfront_station, the line will continue east. https://evelazarus.com/the-dunsmuir-tunnel
https://buzzer.translink.ca/2022/04/new-tunnel-technology-will-transform-your-skytrain-trip/
https://searcharchives.vancouver.ca/construction-progress-photo-of-cpr-dunsmuir-tunnel-10
https://searcharchives.vancouver.ca/construction-progress-photo-of-cpr-dunsmuir-tunnel-9
