The A4 Dynamic Fourth Lane is honored: a project combining innovation, technology, and respect for the environment Italian universities.
Rome – Sustainability as the language of modern business competitiveness. Autostrade per l’Italia has won the SDG’s Award in the ESG category thanks to the innovative Dynamic Fourth Lane project, implemented along the Milan section of the A4 Milan–Brescia highway, between the Viale Certosa and Sesto San Giovanni junctions, in both directions. The project was developed to meet the needs of one of Italy’s busiest urban highway stretches — with 140,000 vehicles per day and peaks exceeding 200,000 — where the dense level of urbanization made traditional road widening impractical. The system increases the capacity of the highway network and improves traffic flow, while also generating significant environmental benefits.
During the SDGs Leaders Summit 2025, businesses, institutions, and media representatives discussed governance, innovation, and integrated sustainability, reaffirming the importance of a development model aligned with the UN 2030 Agenda for Sustainable Development Goals.
“Sustainability,” said Elena Botteon, Head of Sustainability at Autostrade per l’Italia, “is not a secondary chapter in corporate strategy, but a fundamental measure of a company’s social and environmental strength. As a Group, we integrate sustainability into our business model, in the awareness that investing in the environment, the social dimension, and governance, alongside technological innovation and digitalization, means improving processes and achieving important business results. This award recognizes our commitment to making mobility increasingly safe, sustainable, innovative, and efficient.”
The project: technology and sustainability for urban mobility. The Dynamic Fourth Lane, developed by MOVYON, the Group’s technology hub, enables flexible traffic management, switching from three lanes plus an emergency lane to four lanes without an emergency lane, thanks to its advanced monitoring and control system. Currently operational between the Viale Certosa and Sesto San Giovanni junctions in both directions, the infrastructure is a unique model in Italy: an intelligent solution that increases highway capacity without structural impacts, in a densely populated urban area. In addition to improving the travel experience, the project also delivers tangible environmental benefits: an estimated 1.5 tons of CO₂ are saved for every hour the dynamic fourth lane is active along the approximately ten-kilometer stretch.