Italian High Speed Railway Lines





Nationwide spread


Consorzio IRICAV1 (Vianini Lavori)
T.A.V. Treno Alta Velocità

cost of works

€ 2,600 Millions Preliminary Design
€ 400 Millions Detailed Design

scope of works

Preliminary and Detailed Design


The first italian highspeed railway line was conceived after the Japanese experience of Shinkansen.

The construction started in 1972 with the Direttissima, a 254 km long high speed railway link between Rome and Florence, without intermediate stops and along with trains could reach speeds up to 250 km/h.

The Italian high speed railway network has grown ever since, with the construction of new lines connecting the most important Italian metropolitan areas  (e.g. Rome-Naples, Turin-Milan, Bologna-Florence, Milan-Bologna).


Within this framework, Sintagma’s job has been that of elaborating the technical specification for the entirety of the Italian Railway System; preliminary designing Genova-Novara, Milan-Melegnano and Brescia-Verona lines; and final and detailed designing several sections of the Rome-Naples line, including Rome and Naples urban penetrations.

The activity in the Rome-Naples project includes 20Km of viaducts, 6 km of artificial tunnels, 140 over bridges and cutting, embankment, drainage systems, piles and walls.