
Conventional Tunneling
Integrated system to dramatically improve safety, quality, and productivity of tunnel construction
OTISM®
Obayashi is working to build OTISM (Obayashi Tunnel Integrated SysteM)(Available only in Japanese) , an integrated system that will dramatically improve safety, quality and productivity in the construction of tunnels. OTISM consists of the following three systems in three phases of tunnel construction.
Improve the safety and attain labor-saving
in tunnel excavation
「OTISM/TUNNELING」

Improve the quality and attain labor-saving
in tunnel lining work
「OTISM/LINING」

Reasonable decision-making
in tunnel construction work
「OTISM/MONITORING」

In each of these areas, we are developing to improve safety, quality, and productivity of tunnel construction.

Conventional Tunneling
Introduction of
cutting-edge technologies
Message for Future Changing the future of tunnel construction
In Japan where mountainous regions occupy 70% of the land, tunnels play an essential role in supporting the nation’s critical infrastructure. Our mission at Obayashi is to protect people's daily lives with cutting-edge technology, and at the same time, to be fully committed to preserve the natural environment.
With the rapid development of tunnel technology, construction tends to be technocentric, but Obayashi always put priority on ecology and the workers. We pursue change and growth to realize the tunnel construction of the new era, where people, nature and technology are in harmony.
General Manager, Tunnel Engineering Department,
Civil Engineering Technology Division
Obayashi Corporation
Hideo KINASHI
