Featured in Freedom Tower
Primers on high-security building design warn against basement garages. It’s a lesson learned from bitter experience: the 1993 truck bomb...
A tower within a Tower: extra cladding in the middle
Take the elevator?!
Fire protection and sensors to gird lifts so that people can exit fast
The Low-Risk High Risk
Designers of the freedom tower, soon to rise at ground zero, say cutting-edge engineering will make occupants safer. Will they be safe enough?
A "offers web-like support"
(planned for Freedom Tower)
The Way Down
Few people on the floors above where the planes hit the twin towers survived, in part because the stairs, sheathed...
Walls keep fire contained--if they are there
Kepping windows from turning lethal
A federal investigation of the World Trade Center disaster found that a key culprit in the buildings’ collapse was spray-on...