Even though the potential to screw up a driverless metro with platform screen doors is lower than a mixed grade LRT with two tunnels, I wouldn't put it past Metrolinx and the TTC to somehow screw that up as well. At least a driverless metro with PSD usually has >99% service reliability.
There is just a higher floor for automated metro than a overly complicated Line 5 with bespoke subsystems. A badly run LRT is much worse than a badly run metro.
"You learn the lesson all commuters must know immediately: when something really matters, you leave early or take an Uber, but you never rely on the TTC. [...]
In most major cities, the transit experience is reversed. Hong Kong’s Mass Transit Railway system (MTR) operates at a 99.9 per cent on-time rate; Dubai reaches 99.7 per cent; New York, even with its aging system, sits at 84 per cent. Vancouver operates around 96 per cent."
It's disingenuous to compare a brand new LRT with a subway system up to 71 years old , when you should be comparing LRT to modern metro. The TTC's subway service reliability as well as all-mode on-time rate of 57.98% [1] is much lower than the typical >99% for automated metro w/ PSDs. A big part of the never ending slow zones is the lack of funding to upgrade to ballastless track, as is the standard for modern metros. Penny wise pound foolish.
View attachment 7026251.
https://toronto.citynews.ca/2023/07/061/ttc-buses-streetcars-subway-reliability/