There are 82 Stations including the underground stations on Crosstown and Finch.
Full Coverage for open hours, at 2 officers present at all times, is 8 officers per station ( 2 shifts per day, and officers are scheduled 7 on, 7 off, so you need 2 sets of 2sets of 2).
That's 656 officers; there are currently 5,433 authorized uniform positions.
So that would be a ~12% increase.
With direct, and indirect costs, you're likely looking at an operating budgetary impact in the range of 130M - 150M per year.
That's stiff.
If we're going to do that, then, I think we need to can the Special Constable Unit of TTC entirely to partially offset the cost.
We also need to drop the number of Fare Enforcement people who deploy to each site where they do checks, if they're going to be supported by police.