Yes, in theory, there aren't that many RSZs but what is there to explain
@6ixGod post and the minimum 7 minute slower than Google Maps ETA trip I experience from Union to North York Centre/Finch even with 0 RSZs northbound before the recent Union to King RSZ. And this is for trips that are
NOT stuck holding at a station due to a real "delay" like a security incident.
The Line 1 trains are just plain slow, even outside the official RSZs. This is why I have repeatedly called these slow zones permanent RSZs. Case in point the entire above-ground Yonge section. A real delay where the train is stuck at a station only makes it worse (
https://ttcdelayinsights.ca/).
I am tired of people citing Google Maps, the official TTC RSZ website, or the service summary. Please actually ride Line 1 more than 5 stops and you'll notice a longer than expected headway, and/or at least a longer than expected trip time. To those unfamiliar, the service summary lists theoretical headways at different times of day.
To explain how I feel when I see people pedantically repeat how theoretically-fast-and-definitely-not-delayed Line 1 is despite not riding it regularly, if ever, I am going to remix this post: