Officially, there isn't suppose to be a backwards BC agenda. However, the Skybridge between NW & Surrey and the North_Arm_Bridge between Vancouver & Richmond, were designed too narrow. Unfortunatly, both of these SkyTrain+bridges weren't designed to have 2 bus lanes, or even emergency lanes. Key people knew that the SkyTrain wasn't going to be running 24hrs a day. Thus, there would have to be late-night busses when the trains shut down for the night. The 4 lane Pattullo+Bridge and the 4 lane Oak+Street+Bridge don't have enough space for 2 bus lanes, not even 1. Therefore, if there is any traffic disruption on such narrow bridges, a bus will be blocked.
https://jfdatalinks.blogspot.com/search?q=Skybridge
https://jfdatalinks.blogspot.com/search?q=The+North+Arm+Bridge
