York Region's traffic signal timing is atrocious. I have the same experience on Highway 7 and even moreso now on Yonge Street in Newmarket. I tend to hit significantly more red than green lights every time I drive these routes; and the signal cycle times are absurdly long when there is minimal traffic, it causes left turning vehicles that just miss their left turn signal, or vehicles waiting on the side street, to have to wait several minutes for their turn when there are no vehicles north-south. And for example, since the busway, every single time I've driven on Yonge southbound from Eagle Street, I've hit a red at the next intersection (Clearmeadow). Every single time, on dozens of drives. I've never seen it green, or close to turning green, even once. It makes absolutely no sense why it's timed that way. And I don't hit the tail end of the red, I hit the start of it, even if I accelerate and drive fast.
While it's much worse on the busway streets, traffic signal timing is awful in most of York Region. I live in Aurora and work near York University, and it's amazing how noticeable the difference in signal timing is once I cross Steeles. Also, there's York's idiotic practice of having pedestrian signals have a random correlation to the traffic signal (the timer hitting 0 might mean the light turns yellow immediately, or in 3 seconds, or 5 seconds, or 10 seconds, or 30 seconds), whereas in Toronto most if not all intersections turn yellow when it hits zero. I'd be open to arguments on why a different timing makes sense, but not ~5 different possible timings at different intersections with no discernible pattern.
Also, with the busways, it's absurd to have the signals delay so many people (and worsen climate change by causing more vehicles to idle, and decelerate/accelerate, needlessly) for one bus every 15-45 minutes. As a longtime transit user I think the busway on Highway 7 is great in theory just it needs significantly more service to be useful, same for the one on Yonge through Richmond Hill (and they really ought to have found a solution to the heritage stretch), but the Newmarket ones are a colossal waste of space for the minimal ridership and service frequency, and the fact that if Yonge and Davis each had an extra lane the roads would seldom be congested enough for the busway to offer any advantage on the rare occasion a bus even comes through.