In my concept I tried to understand the scenario of a calamity.
I have proposed in my design, a structure which can act as a mass stretcher to rescue the injured and then be modified into a shelter to protect the same.
The structure can be made of metal with periscopic side bars which when pulled cause the tent to be formed.
This will not only provide shelter but also help carry the injured to safety hence saving lives
Cheers
Vidhya