It almost looks like one of the contributing factors of this odd design is a requirement to put a cage around the sides that face the golf course (I can see what looks like a cage on the roof and side facing the golf course, but not the opposite side)
Anyone notice the Presto pucks at the subway stations seem to have been replaced? They only have 4 LED lights now and they seem to be just as fast at detecting my presto card as the original green readers before they were replaced with the pucks
For those curious this pic shows the cross over just south of St. Clair: https://www.toronto.ca/explore-enjoy/history-art-culture/online-exhibits/web-exhibits/web-exhibits-transportation/the-ttc-100-years-of-moving-toronto/canadas-first-subway-construction-begins/
The plan AFAIK is to turn them off. In fact some of the TRs already have new maps with solid white circles instead (the light can still pass through but it doesn't look great).
Toronto's historical imagery doesn't go back far enough but I think you can see the old path it followed here: http://jpeg2000.eloquent-systems.com/toronto.html?image=ser12/s0012_fl1947_it0018a.jp2
On downhill sections of track there were timed blocks which are designed to prevent humans from going over the speed limit. The signal would show red with a flashing white light. If the train approached at the correct speed, the signal would turn green or yellow before the train actually reached...