Modifications:
Changed lights. Far too many small lights. Approximately 200 small lights. Deleted and replaced with long bar lights.
Outer walls were glass. Deleted and replaced with inner walls.
Physical model size was too large. Deleted almost 100 linear feet of unseen and unsee-able interior rooms.
Cross hallway corridor at the far end was open and had to be enclosed on both sides.
Floor above ceiling was deleted
Excessive piping and ducts in the deleted interior rooms was also deleted
After clean up, then added kiosks, vending machines, seating and people.
Render actually took 4 days. Had power interruptions every 24 hours from storms. Fun, fun.
