Inside the Apennines

Deep in Liguria’s Apennine Mountains, the Terzo Valico dei Giovi has reached 96% of excavation: the new high-speed rail line — home to the longest railway tunnel in Italy — will link the port of Genoa...

Alice in Australia, Roberta in France: Two TBMs for Railways, Worlds Apart

They may be halfway around the world from each other, but they still have a lot in common. As tunnel-boring machines (TBMs), the work to be done by Alice and Roberta — the machines’ baptismal names — ...

A Century On: New Railway Tunnels Under the Hudson River, New York to New Jersey

More than a century after the construction of the North River Tunnel beneath the Hudson River, major tunnel boring machines are back in action to deliver one of the most strategic infrastructure proje...

Milan Metro: The New M4 Line Carries 34.5 Million Passengers in a Year

Milan’s newest metro line, the M4, known for connecting the Linate city airport with the historic centre, transported nearly 35 million passengers in 2025, its first full year of operation. Also known...

From Terni to Paris: Refurbished TBM Back to Work on the Grand Paris Express

A 2,000-tonne TBM has arrived in Paris to resume excavation on the Grand Paris Express after being fully refurbished by Webuild in Terni. It is the second life of a machine that had previously operate...

From Brenner Base Tunnel to Gotthard: Alpine Railway Tunnels Connecting Europe

Underneath the Alps, a new geography of European transport is taking shape. From the Brenner Pass, where excavation has surpassed 96%, to the Gotthard and Lötschberg, mega base tunnels are transformin...

From Istanbul to London: Infrastructure Making World’s Most Visited Cities Move

The world’s most visited cities are vast urban machines that move millions of people and goods every day: from Istanbul’s Third Bosphorus Bridge to Bangkok’s public transport system, from Hong Kong’s ...

United States: From New York to Texas, Boom in New Homes Boosts Infrastructure

Over the past five years, the United States’ metropolitan areas have added nearly nine million new homes, reshaping the country's urban geography. From Texas to the East Coast, the growth of cities go...

From Sicily to Scandinavia: Major Infrastructure Projects Shaping the TEN-T