Dan’s hit the nail on the head.
The TTC’s old network has fixed-radius curves, without transition spirals, which are less suitable for fixed-bogie trams. The CLRV and ALRV’s have no issue because the steerable bogies take care of the body lead-in and lead-out. Sit in the back seat of the new TTC Flexities sometime and you’ll instantly see how violent the jerk acceleration is when going into (or out of) the curves. I was thrown from my seat on the 511 when the driver floored it in the Exhibition Loop once!
They do have a few track lubricator spritzed throughout the system, although I think these are very new.
The TTC’s old network has fixed-radius curves, without transition spirals, which are less suitable for fixed-bogie trams. The CLRV and ALRV’s have no issue because the steerable bogies take care of the body lead-in and lead-out. Sit in the back seat of the new TTC Flexities sometime and you’ll instantly see how violent the jerk acceleration is when going into (or out of) the curves. I was thrown from my seat on the 511 when the driver floored it in the Exhibition Loop once!
They do have a few track lubricator spritzed throughout the system, although I think these are very new.