Unlike many other European metropolises, in Naples the differentiation of routes and companies has complicated the creation of contactless payment via credit and debit cards, as the cost of the trip varies according to the distance traveled (divided into bands).
To overcome this problem, TAPin and TAPout have been introduced, i.e. the payment card must be passed to the reader both at the entrance. both at the exit, often that of the exit is usually present near the turnstiles before the exit.
The system will thus automatically calculate the appropriate figure based on the exit band, while in case of missed TAPout will charge the highest amount for the entire route.
The line counts 19 stations, 37 the minutes needed to travel the entire route Piscinola - Garibaldi.
The line counts 12 stations, 45 the minutes needed to travel the entire route San Giovanni / Barra - Pozzuoli.
The line counts 4 stations: Mostra, Augusto, Lala and Mergellina on a path of 2.3km.