UC San Diego Health is the only academic health system serving San Diego, as well as one of only two Level I trauma centers in the region.[3] It is run by the University of California, San Diego and is closely affiliated with the university's School of Medicine.
San Diego MTS operates 95 bus routes and three Trolley lines on 53 miles of double-tracked railway. Every weekday more than 300,000 passenger trips are taken on MTS bus and Trolley services.