The pic shows the parking entrance -
Remember the exitsing parkade already has an entrance on Seymour - no different, really.
Here's the ground floor plans from the DP application -
It'll actually remove the alley that currently exists between Vancouver Centre tower and the parkade
(which leads to the London Drug loading area)
The driveway shown above is really a replacement alley and the parkade entrance in off the alley and the replacement alley.
You can also see double escalators descending to the mall from the office lobby.
From this plan, you can see that only a part of the old food court was under the parkade (or more likely, under the old alley)
(now occupied by the fitness centre changerooms)