The big PDFs aren't loading for me. Is the idea that the boxes on the bottom are the parking lots, and everyone needs to walk across the big field to get to the building? How far is that? Is there handicapped parking somewhere else?
That big diagonal looking structure seen in the site plan is a 4 story car park, with 3 levels sunken below grade (depending on which side of the structure you are looking at).
There are an additional 2 levels of parking below the main building, and a few other auxiliary buildings, including a remote physical plant.