Complex sentence: Madison campus, the Eagle Heights University apartments, and some residential areas near campus via routes 80,81,82,84 and 85, they are free and also operate as the university's "SafeRide" late night service.
Split into simpler sentences: Madison campus, the Eagle Heights University apartments, and some residential areas near campus via routes 80,81,82,84 and 85. The "80 routes" are free of charge and also operate as the university's "SafeRide" late night service.