The University of Minnesota's Campus Shuttle is a zero-fare bus service operating on the University's Minneapolis and St. Paul (Falcon Heights) campuses. In 2009, the system carried more than 3.9 million riders, making it the second-busiest transit system in Minnesota after the Twin Cities's primary provider Metro Transit. It outpaces all of the suburban transit providers in the Twin Cities, as well as providers in other metropolitan areas in the state. Duluth Transit Authority serving Duluth, Minnesota and Superior, Wisconsin is the state's third-busiest provider, while the Minnesota Valley Transit Authority ranks fourth. The shuttles are operated under contract by First Transit through the University's Parking and Transportation Services (PTS) department.