Tunnel boring machines have been in operation for over 200 years and they operate on the same basic principles today as they ...

The $41.1 million Tonnelle Avenue project included relocating utilities and building an overpass to allow the trains to pass underneath Tonnelle.

To Israelis, the location of an underground passageway highlights Hamas’s abuse of civilians. To Palestinians, Israel’s decision to target it highlights Israel’s own disregard for civilian life.

Delhi Metro's Phase IV achieves a milestone with the completion of a tunnel on the Tughlaqabad-Aerocity corridor, also known ...