[Millennium2002]

Note: If you're wondering where I'm getting these stats from, I'm using the school's info and registration system.

An example of some of the enrollments for the larger lectures:
329 in MATH100
164 in MATH150
296 in MATH151
237 in MATH152
436 in MATH154

This is only for the undergraduate math lectures... and all of these courses happen every Monday, Wednesday, and Friday.

The system search also turned up roughly 84 other classes scattered around various Monday, Wednesday, and Friday mornings. Capacity for each of those varies from 20 to 40 since most of them are tutorials... although I did spot some lectures with higher capacities.

EDIT: I realize you are mixing up the terms gondola and aerial tram. I advise that you read the Gondola Project as they have good descriptions of the technologies (which are quite different btw). I should note that I do not oppose a gondola system but have some skepticism over an aerial tram system.