and a remote sensing survey to map the massif's nooks and crannies to an accuracy of about ten meters. Nothing about the Gotthard project is small. In the course of building the tunnel ...

However, one tunnel in the Swiss Alps takes a staggering 20 minutes to complete. The Gotthard Base Tunnel currently holds the world record for being the world's longest and deepest railway tunnel ...

He called on the cabinet to reconsider alternative options to repair the existing Gotthard tunnel, which opened more than 30 years ago, without constructing an additional one. The Alpine ...