Salerno Metro, GCF's tracks.
Awarded by RFI, the extension towards Amalfi Coast airport.
Also financed with Pnrr's funds, the project to complete the Salerno subway was awarded by RFI in recent days. Securing the 170-million-euro tender for the executive design and execution of the work was the business grouping consisting of Eteria Consorzio Stabile Scarl, Rcm Costruzioni, Brancaccio Costruzioni and Gcf - Generale Costruzioni Ferroviarie.
The project, awarded on the basis of the most economically advantageous bid criterion, is considered strategic for the mobility of Salerno and the entire southern area of the province and, above all, for connections with the emerging Salerno - Amalfi Coast airport.
The intervention, in particular, envisages the construction of a fully electrified single-track line, with an overall length of about 9 km, alongside the odd-numbered track of the existing double-track Salerno - Battipaglia line. A track that from the "Arechi" station (the end point of the current operating section of the Salerno subway) will run through the municipal territories of Pontecagnano, Faiano and Bellizzi to the Salerno "Amalfi Coast" Airport where works are underway to upgrade and lengthen the runway in addition to works on the access and road system surrounding the airport.
The activation of four new stops/stations (Hospital stop, Pontecagnano, S. Antonio and Airport stations) with the concomitant interventions on the road network, will allow to strengthen both the connections with the hospital and the university and the accessibility to Amalfi Coast airport, with the creation of an integrated rail-air offer between the airport and the urban poles of Salerno and Pontecagnano contributing to the development of sustainable mobility and the decongestion of the urban area of Salerno from vehicular traffic.
As part of the Grouping of Companies awarded the tender, GCF will be responsible for the works of Armouring, Electric Traction, Electrical Substation and Signalling, as well as Light and Driving Force, Mechanical and Telecommunication installations.
Track and Electric Power of the new section
The armouring project, based on the traditional ballast track and Vignole rails (with a flat base) adopts the highest standards employed by RFI on its rail network.
The screed, consisting of a section of first-rate crushed stone, will have a configuration such that along the entire track there will be a minimum thickness of ballast under the bearing surface of the sleepers of 35 cm.
On the one-piece C.A.V.P. sleepers equipped with high resilience elastic type attachment parts, 108 m long rails will be fixed which, welded together, will constitute the Long Welded Rail. Finally, in the construction of simple and communication shunts between the yard circulation tracks, it is planned to use 60UNI type shunts, configured according to the installation plans and equipped with the shunts' electric heating system (RED).
Four rail viaducts are to be crossed by the new track, all single span, to cross the Fuorni stream (about 37 mt), the Picentino River (about 45 mt), the Asa River (about 45 mt), and the Diacoloni stream (19 mt).
As for the Electric Voltage works, the planned piling will consist of pile supports of the lattice type equipped with suspensions of the horizontal tubular steel bracket type as well as mooring gateways each consisting of 2 piers surmounted by mooring beam. The relevant foundation blocks will be made of reinforced concrete using "guaranteed performance" concrete with minimum strength class C30.
The Overhead Contact Line on full line and station/stop track will have an overall cross-section of 320 sq. mm (440 sq. mm for Pontecagnano), obtained by using a 120 mm carrying rope and two 100 mm shaped wires.
Of particular complexity, the civil and hydraulic works concerning the stations and the related road system, as well as the planned works for the Light and Power Installations, Mechanical Installations, safety and security.
Among the "green works," numerous plantings of new vegetation foreseen at the edges of service yards near stops and stations, for the restoration of agricultural land interfered with by construction site areas, and along the entire route of the new light rail line.