TRIESTE – One third of traffic on the A4 Venice-Trieste motorway is made up of heavy vehicles: around 15 million transits in 2025 out of a record total of 54 million, the highest share across the entire Italian motorway network. And the figure is still growing: in the first three months of 2026, traffic was up 3.16% on the previous period.
The figures were presented yesterday during an event, where it was stressed that the motorway section, part of European Corridor V and managed by Autostrade Alto Adriatico — an in-house company of Friuli Venezia Giulia and Veneto — has almost doubled its volumes compared with the 36 million transits recorded in 2003, becoming a backbone of continental freight transport.
Work on the third lane, including the conversion of the Villesse-Gorizia link road into a motorway, now covers 77 kilometres. The construction site has generated more than 2,500 contracts, involved over 2,400 companies and employed an average of 300 workers a day, with peaks of 500. The accident rate fell from 11.4 to 4.7 accidents per 100 million vehicles/km between 2003 and 2025, below the national average, while summer queueing hours dropped from 225 to 129.
Chairman Marco Monaco recalled that tolls have remained unchanged for eight years and are confirmed until 2029, as part of a financial plan worth almost two billion euros, under the principles set out in the Cooperation Agreement between Autostrade Alto Adriatico, the two Regions and the Ministry of Infrastructure and Transport.
On the logistics front, an agreement has been formalised with the Eastern Adriatic Sea Port System Authority for the digitalisation of traffic flows to and from the port of Trieste. Also in the pipeline is a photovoltaic project on 16 hectares of company-owned land to support the CER – Renewable Energy Community of Friuli Venezia Giulia.