the university hospital, have been transferred to a new "University Citadel", located in Monserrato. Cagliari's downtown houses the engineering and the humanities divisions and, in the Castle, the seat of the Rector, in an 18th-century palace with a library of thousands of ancient books. Cagliari is also the seat of the Pontifical Faculty of Theology of Sardinia and of the European Institute of Design. Health care Life expectancy in Cagliari is high: 79.5 years for men and 85.4 for women (provincial level). There has been a public hospital in Cagliari since the 17th century. The first modern structure was built in the middle of the 19th century, designed by the architect Gaetano Cima. This hospital is still operating, although all its departments will eventually be transferred to the new University Hospital in Monserrato. Among the other public hospitals, the Giuseppe Brotzu (San Michele) Hospital was recognized in 1993 as a High Specialization Nationally Relevant Hospital, particularly for liver, heart, pancreas and bone marrow transplants. Other public hospitals in the city include: the Santissima Trinità or commonly Is Mirrionis; the Binaghi, specialised in pulmonology; Marino specialised in traumatology, hyperbaric medicine and spinal cord injuries; Businco specialised in oncology; and Microcitemico, specialised in thalassemia, Genetic diseases and rare diseases. There are in addition many private hospitals. Despite its dry climate, thanks to the regional system of dams, every inhabitant of Cagliari may have per day of safe drinking water. Waste sorting is still at a low level: only 33.4 percent of waste is separated. Transport Airport The city is served by the Cagliari-Elmas International Airport, located a few kilometres from the centre of Cagliari. It is the 13th busiest aeroport in Italy by passengers traffic with around 4,370,000 passengers in 2018. A railway line connects the city to the airport; walkways join the railway station to the air terminal. The terminal is also connected to the city by highway SS 130 and by a bus service run by the ARST company to the central bus station in Matteotti square, in the centre of the city. There are other airports not too far from the city: Deciomannu Airport, a NATO military airport and three fields for air sports, Serdiana (used in particular for skydiving), Castiadas and Decimoputzu. Roads The following national roads begin in Cagliari: Carlo Felice to Sassari - Porto Torres (motorway-like until Oristano) and to Olbia (SS131 Central Nuorese Branch). Iglesiente,