The architectural design of the station building and the roof over
the entrance and exit islands of the highway is part of the complex road
construction plan for the new Ronchis Latisana exit on the A4 highway. The
inspiring theme of the project imagines the new exit station as a “gate”. A
regional-scale transition between the indifferent ribbon of highway that runs
across the plain of the Friuli and Veneto regions, and the territorial,
environmental and cultural space of the Lower Friuli area into which the gate
leads. The project is thus a symbol, on an appropriate scale, that I like to
refer to as the “gate to the Bassa Friulana”. The impressive size of the exit,
which has fourteen lanes, required an ideation process that aspired to the
overall lightness of the work. At the same time, because of the symbolic
significance attributed to the project, it had to serve as a regional-scale
signal, on the level of other existing signals in the territory of the Bassa,
the bell towers, the basilica at Aquileia, the walled city of Palmanova and the
Terrace and sea of Lignano Sabbiadoro. From the tip of the (ideal) cone, the
stainless steel cables that stay the structure of the wings stretch lightly,
barely visible in the sun, and dialogue with the space and the light of the
sky. Everything will appear suspended, like the wings of a great bird that
alights and flies away, or the blades of a primitive helicopter, a Leonardesque
machine inspired by “nature”. The base of the ideal cone of the Tower
supporting the stays is materialized as a cone-shaped axis, made out of
concrete. Rotated at an angle of 90° from it, the station building is
positioned longitudinally at the center of the exit area, in the direction of
the entrance and exit ramps. The plan of the building carries the asymmetry of
the wings after the rotation, and the north and south fronts become
progressively thinner until they are an edge, where the curved walls and the
straight walls of the building, which face each other from east and west, meet.
The rotating sense of the whole contributes to the lightness of the buildings,
though it does not sacrifice, rather it highlights their architectural identity
within the new infrastructural landscape. The roof structure over the lanes,
ten going in and four going out, has the same asymmetry. A sawhorse was built
to extend and stay the two wings, supported on four points consisting in paired
columns connected to the reticular structure, with the surface clad in sheet
metal so that each column might present a single compact structure, lobed at
the end. Four lobed pilasters converge into a vertex which holds the anchoring
structure of the cables that stay the bearing structure of the two wings. The
latter are made of reticular ribs and spars that curve them in the longitudinal
and transversal directions. The cabled structure is anchored to the ends by two
transversal cables anchored to the ground to counter the wind force. The entire
structure will be clad in lightweight wood panels covered in zinc – titanium
sheeting. The use of painted steel, stainless steel cables, of a roof clad in
pretreated and therefore opaque zinc – titanium, creates a whole, which in
relation to its highly visible scale and architecture, is tempered by a
harmonic variation of polished and opaque surfaces, in tones of grey, that
dialogue with the light to create an effect of extraordinary “lightness”.