I'm not in St. Andrew much at peak, but it hasn't struck me as particularly crowded during the shoulder period - at least pre-Covid. Nothing like Dundas which must be the worst non-interchange station on the system for access and crowding. Is it just a lack of faregates?
There are multiple issues with Dundas station - basically a bad case of building things cheaply and not expanding the concourse - but instead routing every single station entrance/exit to two dinky spaces.
AoD
St. Andrew can get pretty busy in rush hour on a peak-day; fare gates are only one part of the issue, its also a very small mezzanine through which to sort all the traffic, including through traffic for the PATH; vertical circulation is also limited. That's why the additional exit is prioritized, in addition to fire code issues, to redistribute some of the load.
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On Dundas, the new north exit off the mezzanine is under design right now. I'm marginally hopeful it will go forward next year. I know the NB platform will get one, I'm less sure if they're doing the SB platform yet, as I think they had hoped to piggy back on a development at the corner of Edward/Yonge.
There should be room to enlarge both mezzanines, the NB one would have to eat some space in the parking garage; the SB one, might have to eat a corner off TEC.
Hopefully they don't go too far with uni-directional gates. Woodbine only has two gates now (how they managed to rebuild the station and not do something about that I don't know) at the main entrance.
Woodbine is now on the books for an expanded bus terminal to hold artics in at least one bus bay, with a placeholder date of 2039.
I imagine the actual date will coincide with Choice (loblaws) redeveloping its properties which surround the station.
I have indicated in discussions w/the City and Choice that I would like to see a sliver of space given over to expanding Woodbine's footprint both above and below grade, and that the City/TTC should be willing to trade air rights over the bus terminal in exchange.
How far that gets ...... who knows.