Speed bumps on Biscayne

Is there anything that triggered this?

There's lots of cars using this I guess as an alternative to using Eglinton.

But there's never any cops there. I didn't see any traffic measuring devices. So I assume that the residents complained about the number of cars passing by.

The bumps slow people down but they are still using the street

Is there any City of Toronto info about this? I found stuff about traffic humps/bumps in other neighborhoods but not that one