Northern Light
Superstar
I'm not an engineer or architect by trade, and don't have the schematic drawings of Kennedy Station; that said, my instinct is that its a 'no'.
Lets start with option A above...
The structural columns that currently support the SRT level may or may not have sufficient load bearing capacity to handle another level on top of that, that would allow for trams/trains.
If not, then you would either require a new set of columns, or you would have to widen/reinforce the existing ones. In the context of the existing station, that's complicated, do-able, but both costly and would eat in to existing space in the bus terminal and the concourse, and may encounter other conflicts.
You also then need the stairs and escalators to reach the upper level, those too require supports and take up room on lower levels, you also need them to arrive at your newly created level at a reasonable grade in a usable location. That's a lot to ask.
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option B, immediately west of the current tracks. Right, but you need to get up to grade to clear the GO Tracks over a fairly short distance. That would mean, likely, re-sloping the grade of the existing tracks through the station. That is also a structural issue. You would be adding load, and you might have to cut off/open the roof on the east side since the rails would now be higher, and you've have to prevent people from accessing the now former platforms in some way as well.
That part isn't hard.......... but back to the grade issue. It depends how much more vertical clearance we need. I'm not sure w/o the drawings how much more is required, the photo suggests a good 2M for sure, but it might be 3M or more.
If you do that, at a 3 degree incline, it will take you between 40M (2M meter rise) and 80M (4M rise)
Here's a calculator for that if you wan to play around:
Elevation Grade Calculator
Elevation grade calculator determines the grade or slope of a specific earthen area, given its "rise" and "run".
www.omnicalculator.com
Keep in mind you want the grade as low as possible, especially from to/from a stopped position. Depending on rolling stock selection, a grade of up to 5 degree incline may be workable, but a more conservative assumption would be prudent.
You don't want the platforms themselves to be inclined.
