Since its foundation in 1974, the International Tunnelling and Underground Space Association (ITA) has encouraged the economic, environmental and social benefits of utilising underground space and provided support to the tunnelling industry across the globe.
Formed through the initiative of 19 nations in 1974, the International Tunnelling and Underground Space Association (ITA) has considerably developed over the last four decades to provide a platform for its 71 member nations, allowing them to work together in a way that promote advances in the planning, design, construction, maintenance and safety of tunnels and underground space.