Excellent post
@Northern Light
This reminds me of some low hanging fruit I suggested to the City a number of years ago where I suggested advanced left turn arrows be added or extending times they are active where installed to streetcar routes.
There are arrows installed at EB Jarvis and EB River on the 506 Carlton. These arrows are only active 3:00-6:00 PM. There are considerable left turn volumes at most times of the day that delay streetcars. Changing these to all hours will have an effect.
I suggested a new left turn arrow at EB Carlton at Parliament matching the one at Wellesley due to the amount of left turns heading north to get to Bloor and the DVP. There are significant motor vehicles queues for this turn, delaying the streetcar quite a bit. Instead the City added a leading pedestrian interval here causing even more delay.
The response I got from the city was standard boilerplate "we'll look at it." Yet it seems my suggestions had fallen into the void. Super frustrating...