^The WTC NIST reports have the needed plans, but here's the express elevators. Each cab had two doors, one on each end, so that while you enter from outside the core, you exit righinto the center of the building with the local elevators directly across from you.
Meanwhile, I'm starting over. Adding the concourse to the existing model has proven tricky, so I'm rebuilding the whole thing from scratch to make it jive. The towers are almost done, just have to redo the lowrises and attach them to the concourse. I'll probably keep most of the hotel as is.