Turin–Lyon high-speed railway

The Turin–Lyon high-speed railway is a rail line under construction between the cities of Turin and Lyon. It is intended to link the Italian and French high-speed rail networks and will be 270 km (170 mi)-long.The core of the project is the Mont d'Ambin Base Tunnel which will cross the Alps between the Susa Valley in Piedmont and Maurienne in Savoie. At 57.5 kilometres (35.7 mi), that tunnel will be the longest rail tunnel in the world, ahead of the 57.1 km Gotthard Base Tunnel. It represents one third of the estimated overall cost of the project and is the only part of the line where work has started.

Turin–Lyon high-speed railway

The Turin–Lyon high-speed railway is a rail line under construction between the cities of Turin and Lyon. It is intended to link the Italian and French high-speed rail networks and will be 270 km (170 mi)-long.The core of the project is the Mont d'Ambin Base Tunnel which will cross the Alps between the Susa Valley in Piedmont and Maurienne in Savoie. At 57.5 kilometres (35.7 mi), that tunnel will be the longest rail tunnel in the world, ahead of the 57.1 km Gotthard Base Tunnel. It represents one third of the estimated overall cost of the project and is the only part of the line where work has started.