Loopy precedents

I'm still waiting for the thumbs up from Thesis Advisor M, but I've got fingers and toes crossed. Until I get approval, I'm going to scout around for useful stuff (I'm sure this is clear from my previous posts)

Right now, I'm interested in precedents. What kind of architecture exists for transit hubs? For underground transportation? What's out there in Vancouver and otherwise?

• Calatrava's WTC transit hub. The scale of this is quite different from what would be need at UBC. There is a Power point video online.

I'm going to find some more, but I've spent a few hours drinking thesis committee wine and chatting with some other students, so I'll get it tomorrow.