Circumvesuviana (Italian pronunciation: [ˌtʃirkuɱvezuˈvjaːna]) is a 142-kilometre-long (88 mi) railway network in the east of the Naples metropolitan area, operated by EAV. Electrically powered throughout, the system uses the narrow gauge of 950 mm (3 ft 1+3⁄8 in) and operates 142 km (88 mi) of route on six lines. It is entirely separate from other national and regional railway lines. It has 96 stations with an average interstation distance of 1.5 km (0.9 mi).
The Circumvesuviana railway covers a wide catchment area of over 2 million people, distributed in 47 municipalities, including Scafati, San Valentino Torio and Sarno in the province of Salerno and Avella and Baiano in the province of Avellino. The network forms an important commercial artery, and provides services to the tourist destinations of Pompeii and Herculaneum.
