Held every two years, this conference sees 1,500 participants and visitors from about 20 countries. It is numbered among the world's leading get-togethers for underground construction experts. For 21 years, the Underground Construction Technology International Conference & Exhibition (UCT), has been the meeting place for business-professionals involved in maintaining the underground utility pipe infrastructure. Tunnel safety and security is a challenge for both private and public sectors. ISTSS provides a forum to discuss current practice and emerging trends arid research in safety and security.
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