traffic enforcement officers have already been talked to death about at length in another thread so i wont be going there.
i cant speak for peel or the area they work in but everywhere is different.
firstly - peel region is a lot quiter then places like toronto,
secondly - mississauga rd and surrounding area such as streetsville as you mention in peel are wealthier neighbourhoods therefore far less crime will be happening, if theres no crime to stop they will be doing things like radar, enforcing stop signs etc. the officer will stick to their division, they cant go to the bad areas of peel and start doing crime prevention there. you cant expect them to drive around in circles for 12 hours in a rich neighbourhood where you might get only a few calls a day, instead youll be out enforcing traffic laws such as mississauga rd.