Ever wonder how decisions get made to build superhighways or new transit lines? The big transportation decisions take a lot of advance planning, a lot of money - and you might think a crystal ball to predict. But no - it’s not magic! It’s a lot of math and hard work. My former student Balthazar Crane is busy doing infrastructure planning for 2041. Before that he studied at the University of Toronto in Engineering Science - that's reputedly the most difficult university program in North America.