I did a little research on the interwebs. America's truckers ranked the busiest freeways.
#1 was I-80. #3 was I-15 (which was nearly #2). As you may or may not be aware, those two freeways intersect. They intersect in Salt Lake City, home of the great heathen university.
I find it poetically just that the fans that have nothing but disdain and scorn for their new conference and have dubbed it the "Truck Stop Conference," live in the actual biggest truck stop in this country.