Line 2 (Naples)

The construction of the line, part of the ″direttissima″ Rome–Naples, was begun in 1911 and after a suspension during World War I, it was completed in 1925 between Pozzuoli and Piazza Garibaldi, electrified with third rail. Two years later the ″direttissima″ was completed, and the electrical rail service was extended towards Villa Literno and San Giovanni-Barra.^[3]

In November 1935 the line was also electrified with overhead line; the third rail was discontinued in 1938.^[4]

In 1997, the line was numbered as Line 2, while the other Naples Metro line became Line 1. The two lines were connected with a pedestrian tunnel between Museo and Cavour in 2002 and in Garibaldi station in 2012

In 2001, operation of the line was taken over by Metronapoli SpA, a newly established joint stock company in which Trenitalia held a 38% stake. However, in November 2005, operation of line 2 was transferred back to Trenitalia, and that company sold its Metronapoli shares to the municipal government.^[5]

Since 2009, the line is crossed only by metropolitan trains.^[6]

The metropolitan service started in 1925 with third rail cars of type E.20 transferred from the Ferrovie Varesine.^[3]

In 1938 the third rail system was discontinued,^[3] and the E.20 substituted by the newer E.624 equipped with overhead line.^[7]

From 1962–63 the E.624 were moved and substituted by the new EMUs of type ALe 803,^[8] and from 1983 the ALe 724.^[9]

Line 2 also uses ALe 582 (currently no longer in service) and the newest double-decker Treno ad alta frequentazione and Jazz trains.

In 2016, the replacement of ALe 724 began through the supply of 24 ETR 425 "Jazz" trains, these new electric trains, are also used on the Salerno-Naples Campi Flegrei line. The replacement was completed in 2023 through the supply of 12 ETR 104 "Pop" trains, which have a special "metro" configuration, sacrificing seats in favor of the convoy's standing capacity.

• Naples metropolitan railway service
• Rail transport in Italy