During the last few years, this annual STS event has developed into the main congress for tunnelling experts in Switzerland, originally evolving from the AlpTransit congresses.
There are annually around 800 experts from 15 nations attended the high-quality presentations and additionally enjoyed the traditional excursions to large construction sites within Switzerland and the surrounding area which took place.
The STC 2022 will be held in its proven form, consisting of a colloquium, congress, exhibition, evening events and excursions.
The title of the 2022 colloquium is "Operation and Maintenance (Facility Management) of underground structures". The topic is not new, but the demands and requirements for the operation and
requirements for the operation and maintenance of underground structures are becoming ever greater.