The Ente Autonomo Volturno S.r.l., also known by the acronym EAV, is a company that operates in the sector of public transport by road, rail and cableway, in the Campania Region.

It was born in 1904 on the initiative of the municipality of Naples as an independent body for the construction and management of a hydroelectric plant on the Volturno river, completed in 1909 and operational since 1916.

Subsequently, it performed the tasks of contracting station and group which included railway and automobile transport operators as well as cable cars, such as Circumvesuviana, MetroCampania NordEst and SEPSA.

[3] The Circumvesuviana railway network includes the following sections: Botteghelle-San Giorgio a Cremano, Naples-Nola-Baiano, Naples-Ottaviano-Sarno, Naples-Pompeii-Poggiomarino, Pomigliano d'Arco-Acerra and Torre Annunziata-Sorrento.

[8] The network made up of the Circumflegrea and Cumana railways boasts a total length of 47 km and connects the stations of Montesanto, in Naples, and Torregaveta, in Bacoli.