Why purify the air in an emergency shelter? The fire that broke out at the High Speed 2 tunnel construction site in London has, once again, demonstrated the critical importance of having operational emergency shelters in underground sites. A look back at the incident and the lessons learned. The air inside an emergency shelter may…

Why is an underground refuge chamber essential in tunnels and mines? Underground development : including the extraction of raw materials, tunneling, and the installation of underground utility networks and transportation infrastructure; addresses a major challenge: supporting global population growth and the resulting demand for resources and mobility. But these underground projects also impose significant constraints…

What is the ideal level of self-sufficiency for an emergency shelter? The issue of self-sufficiency is paramount in determining the needs for refuges chambers. Beyond the number of people to be sheltered, it is in fact the determination of how long they will need to remain inside, until emergency responders arrive or the incident ends,…