Provence-Alpes-Côte d'Azur daily basis, but cities are investing in public transport networks such as Marseille's subway (2 lines) and tramway (3 lines), Aubagne's tramway (1 line) and Nice's tramway (1 line). Other networks existed at the beginning of the 20th century in smaller cities such as Aix-en-Provence, Avignon, La Ciotat and Toulon but are now gone. Major universities of the region include the Aix-Marseille University, the University of Toulon, the University of Avignon and the University of Nice Sophia Antipolis. Other towns have higher education classes but no Universities. Provence-Alpes-Côte d'Azur Provence-Alpes-Côte d'Azur (; ; ; PACA) is one of the 18
Aix-en-Provence Aerodrome an asphalt surface measuring . Aix-en-Provence Aerodrome Aix-en-Provence Aerodrome () , also known as Aix les Milles Airport ("Aéroport Aix les Milles"), is an airport serving Aix-en-Provence, a "commune" in the Bouches-du-Rhône department of the Provence-Alpes-Côte d'Azur region of France. It is located west-southwest of Aix-en-Provence, in the village of Les Milles. It formerly served as a military air base, known as Base Aerienne 114 d'Aix Les Milles. A campus of the "École nationale de l'aviation civile" (French civil aviation university) is also located at the aerodrome. The airport resides at an elevation of above mean sea level. It has