Creative Escape Routes For Evacuating Skyscrapers

"The swift and unexpected collapse of the [World Trade Center] towers has safety officials and engineers re-examining evacuation plans and stairway design. The collapse is also bringing attention to novel ideas for escape, some already in limited use and others far afield. They include escape tubes that could be slung outside a window, people- lowering devices outside of buildings, flying platforms that would remove occupants through windows and even individual parachutes as a last resort."

Thanks to Abhijeet Chavan