A second underground hollow space was discovered in Tokyo’s Chofu city that neighborhood residents strongly suspect is associated with underground tunnel work by an expressway operator ...

Underneath Tokyo’s bustling metropolis lies a maze of concrete tunnels built by Nippon Telegraph and Telephone Corporation to hold telephone and Internet cables. Photo: Alexander Martin/The Wall ...

Plans are in the works to extend two Tokyo Metro subway lines, out of its network of 13, to relieve congestion in key areas and make it easier for tourists to travel around the capital. The last ...

Public transportation can tell you a lot about a city, and the Tokyo subway system — which is primarily made up of the Tokyo Metro and the Toei Lines — was clean, efficient, and easy to ...

The surrounding rock may become unstable or even fall down and the initial support may crack and be destroyed when the construction method of the underground excavation tunnel is not properly selected ...

An curved arrow pointing right. The Tokyo Metro is a crucial public-transportation system that is globally recognized for its cleanliness. The staff does routine cleanings to maintain its stations ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. Tokyo Metro’s chief has signalled further fare increases as the recently listed company seeks to win over ...