ABSTRACT
Line 6 is a 6 km long line linking the Northern suburb of Fuorigrotta (Mostra Station) to the historic city center (Municpio Station), passing through one of the most urbanized areas of the city (Riviera di Chiaia). Nowadays the initial part of the line, between Mostra and Mergellina Stations, is already working, whereas 3 km of tunnel between Mergellina Station and Municipio Station have to be excavated as to finalize the line (Fig. 1).
