https://www.planetizen.com/news/2023/08/124945-new-rem-light-rail-launches-montreal
As long as the trains can eventually become double the length, then Montreal can avoid a Vancouver type delema.
https://rem.info/en/reseau-express-metropolitain
https://en.wikipedia.org/wiki/Samuel-De_Champlain_Bridge
https://jfdatalinks.blogspot.com/search?q=REM+Train
https://jfdatalinks.blogspot.com/search?q=Samuel-De+Champlain+Bridge