All roads have a natural speed limit, which is a function of the road design, which in Toronto is usually mostly flat and die-straight. The speed limits chosen rarely reflect this, which is why speeding usually happens. I am also sure that extensive studies were done to identify where the cameras would be “most effective”, and so now they’re gone, of course the speeding has gone up. They grabbed enough cash that people learned to slow down and then speed up again and now that is no longer necessary.

The real problem in Toronto (where I lived until very recently) is the public transport system because there is no alternative to driving. It’s truly awful. New lines take 16+ years to build, and some are slower than pedestrians. The exiting ones are few and depend mainly on buses, which are slow and treated mostly as “just a big car”. Ford himself has also removed bike lanes, which were somewhat viable apart from the cars parked literally everywhere because the city was built for cars alone and not people. And good luck if you need to cross the city via highway. No matter the time, it’s crammed with cars barely moving.