The Circumflegrea railway (sometimes also known as Line 5[1]) is a commuter railway line that connects Naples city centre with the northern Phlegraean Fields, a suburban area located west of the city.

The line is operated by the Ente Autonomo Volturno (EAV) company.

The construction proceeded very slowly, and the first section (from Napoli Montesanto to Soccavo) was not opened until 1962; the railway was extended in 1968 to Marina di Licola; the last part was built but remained abandoned.

[4] Construction started of a new short branch between Soccavo and Monte Sant′Angelo, but has stopped due to the lack of funds.

[5] According to a timetable posted in paper format at the station of Licola, all trains now (2018/11) end there.