Autostrada A28

Autostrada A28
Country	Italy
Route	A28
Length km	51
Established	1967
Termini a	Conegliano
Termini b	Portogruaro
Regions	Veneto

Autostrada A28 is an Italian motorway in the Veneto region linking Conegliano and Portogruaro near the Adriatic Sea, providing a north–south corridor between inland Treviso province and the Metropolitan City of Venice. The route connects with major corridors such as the A4 and offers access toward Trieste, Venice, and the Friuli Venezia Giulia area, serving commuters, freight haulers, and tourist traffic bound for the Adriatic Sea coastline and Dolomites foothills.

Route description

The motorway begins near Conegliano, intersecting regional roads that serve Colle Umberto and San Vendemiano, and proceeds southeast across the Piave basin toward Pordenone County borderlands. It traverses largely rural terrain with crossings of waterways linked to the Brenta and Sile hydrographic systems before terminating close to Portogruaro where it meets the national network leading toward Lignano Sabbiadoro and Caorle. Along its length the carriageway passes near towns such as Oderzo, San Stino di Livenza, and commuter belts of Treviso and Venice Mestre, and connects with regional state roads that serve Belluno and the Cadore area. The alignment was chosen to reduce pressure on the urban axes of Conegliano and Portogruaro while linking industrial zones around Pordenone and logistics hubs near the Port of Venice.

History

Plans for a north–south motorway in eastern Veneto emerged after postwar reconstruction, influenced by national legislation such as the 1959 motorway expansion initiatives and the later transport policies of the Italian Republic. Early studies in the 1960s referenced corridors used by historic trade routes between Venice and the Alps, while engineering work drew on experience from projects like the A4 and the Autostrada A27. Construction phases in the 1970s focused on earthworks and viaducts, with incremental openings through the 1980s as financing from regional authorities and institutions including the Anas and provincial administrations was secured. Upgrades in the 1990s and 2000s addressed pavement wear, tolling interoperability with national schemes, and interchange modernizations influenced by European directives on trans-European transport corridors such as TEN-T initiatives.

Junctions and exits

Key interchanges provide links to the A4 via the Nodo di Portogruaro and to several state roads: the junction with the Strada Statale 13 near Conegliano serves regional northbound traffic to Belluno and the Cortina d'Ampezzo corridor, while exits for San Stino di Livenza and Portogruaro feed industrial estates and rail terminals connected to the Rete Ferroviaria Italiana. Intermediate interchanges support access to municipal centers including Oderzo and allow freight diversion toward the A28's service areas and park-and-ride facilities that interface with regional bus operators and commuter rail lines serving Treviso Centrale and Venezia Santa Lucia.

Traffic and usage

Traffic composition includes a mix of local commuter flows between Conegliano and Portogruaro, long-distance freight serving the Port of Venice and logistics hubs in Pordenone, and seasonal tourist surges bound for Lignano Sabbiadoro and coastal resorts such as Caorle. Peak volumes occur during summer holidays and harvest periods in the Prosecco zones around Conegliano Valdobbiadene, while winter times see increased heavy vehicle movement linked to supply chains serving the Dolomiti tourism sector. Traffic management has involved coordination with regional transport authorities in Veneto and law-enforcement bodies including the Polizia Stradale to reduce incidents and enforce weight restrictions that protect pavement and bridges.

Construction and engineering

Engineering works included embankments across alluvial plains, reinforced concrete viaducts over tributary streams, and soil stabilization using techniques proven on contemporaneous projects such as the A4 and the A27. Major structures employed prestressed concrete girders, seismic detailing consistent with codes influenced by the Istituto Nazionale di Geofisica e Vulcanologia guidelines, and drainage systems tied into the Piave catchment. Pavement design adopted multilayer bituminous surfacing to accommodate heavy-axle freight, and maintenance regimes have used mechanized resurfacing deployed by contractors experienced on ANAS tenders. Environmental mitigation included fauna crossings modeled after initiatives near Dolomiti Bellunesi National Park and noise barriers where the route approaches residential areas like San Vendemiano.

Future developments and upgrades

Planned works prioritize capacity increases at key interchanges, intelligent transport systems compatible with EETS standards, and enhancements to tolling and safety features aligned with European Union road safety targets. Proposals under regional transport plans envision better multimodal integration with the Port of Venice, rail freight terminals, and connections to proposed upgrades of the A4 corridor toward Trieste. Investment discussions involve provincial councils, the Regione Veneto, and national agencies to fund bridge refurbishments, EV charging infrastructure at service areas, and resilience measures responding to flood risk in the Po–Adriatic plain.

Category:Motorways in Italy Category:Transport in Veneto