Editor’s note: This article, distributed by The Associated Press, was originally published on The Conversation website. The Conversation is an independent and nonprofit source of news, analysis and ...

Penetrating through high altitude mountains in difficult terrains and connecting inaccessible areas, tunnels have been one of the main features in India’s road infrastructure development programme.

Finnish radioactive waste management company Posiva Oy has announced that work to excavate a final disposal tunnel has started at the Onkalo underground characterisation facility near Olkiluoto. The ...