Some years later the station passed to the Società Anonima Ferrovia Napoli–Ottaviano (the current Circumvesuviana), which used it as the terminus of the Naples-Ottaviano line, the first of a vast network.
The original traveler building, dating back to the Bourbon era, was demolished in the early seventies and replaced by the current one, built from 1972 to 1975 to a design by Giulio De Luca and Arrigo Marseille.
On the roof there is a reinforced concrete floor, connected to a glazed building that houses the various services and offices of the main headquarters of the EAV.
The Napoli Porta Nolana station has 13 trunk tracks all dedicated to passenger traffic (the Circumvesuviana has never had freight service), as well as a small garage for the electric trains temporarily not used.
The Naples Porta Nolana station is the terminus of the entire Circumvesuviana network: trains leave for Sorrento, Baiano, Poggiomarino, San Giorgio a Cremano, and Sarno.