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
Provence-Alpes-Côte d'Azur by DB Alleo: Services operated by Renfe AVE: Services operated by Eurostar: Services operated by Thalys (seasonal): Despite the importance of the region in the national economy and demography, the national services on conventional network are not very high due to the fact of the saturations of the tracks with high speed and regional trains. Services operated by SNCF Intercités: Services operated by Thello Eurocity: All regional trains services are operated by SNCF TER Provence-Alpes Côte d'Azur, except between Nice and Digne-les-Bains, operated by CP, the own-region company. The Regional Council of Provence-Alpes Côte d'Azur is the transport authority and