Aging tunnels are becoming a growing concern, but there aren’t enough experts to inspect and maintain them. To solve this problem, researchers in South Korea have developed a smart AI system that ...

A unique tower stands above the middle of the tunnel, supplying air to the tunnel. Its ventilation system is powered by the almost constant winds of Tokyo Bay. The Aqua Tunnel, as the tunnel is ...

This tunnel featured an extensive rail and cart system, forced air ventilation, high-voltage electrical cables, and an elevator at the entrance, per CBP.

BB Infrastructure has awarded a €76m contract to install slab track in the 27.3km Semmering Base Tunnel to a joint venture of ...