It seems every time I drive through Montreal of late, there are emergency highway, bridge, and tunnel closures, because the highway system is falling to pieces, structure weren't built how they should be, and maintenance has been deficient for years.
At the same time, in the last quarter-century, with announcement after announcement of Metro expansion, they've only managed to add 4 km and 3 stations to the system, with nothing else in construction, or even in detailed design.
If Montreal did indeed do many things right, it doesn't seem to have happened since Jean Drapeau left office.