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
Société scientifique et littéraire des Alpes-de-Haute-Provence an historical, scientific, or literary way. It has published many works of recognized quality, distributed to a number of European societies and universities. Its publications have appeared under a number of names: "Annales des Basses-Alpes" followed by "Annales de Haute-Provence" and finally "Chroniques de Haute-Provence". These publications have been indexed and filed by the Alpes-de-Haute-Provence archives department. Many libraries shelve these works. Since 1969, the society has appointed a committee to protect the monuments and sites in Haute-Provence. The committee has made it its aim to safeguard, restore, and highlight the department's monuments and sites. It acts in concert with