Tunnel link between Pozzuoli port and Tangenziale di Napoli: the project includes the design for the motorway connector, laying in a tunnel, linking the harbour area to the orbital road of Naples. The natural tunnel is 1160 meters long, with an upstream artificial segment and a downstream entrance , realized through the “Essen” system, by the pipe jacking methodology and connected to the existing road by two traffic circles. The renovation area lies in the residential zone of Pozzuoli, between the Naples orbital road (North), Artiaco street (East), the harbour (South) and Fascione street (West).