[candu]

I mean, Montréal also regularly sees temperatures around -30 C in the winter, so it's not completely ridiculous to suggest this decision may be informed by fundamentally different design constraints from, say, San Francisco or many European cities [1].

[1] https://en.wikipedia.org/wiki/Montreal_Metro#Station_design

[freeone3000]

…except there is now also a light rail, the REM, which goes above ground including in Winter