Universities push traditional access control to its limits. The more one asks of it, the tougher it gets. If one wants to monitor access all over campus. To know who comes and goes to computer rooms and classrooms.
One would like to filter access to conference and seminar rooms according to the time — lecturers all day, cleaners and contractors after hours. Meanwhile, one wants students to be safe 24/7, without compromising the sense of freedom they enjoy on campus.