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Latest News. Giuliani encouraged buildings to build low, according to Quartz , and U. Model Building and Fire Codes were revised pending an investigation.
According to a NIST National Institute of Standards and Technology release , new codes addressed areas including "increasing structural resistance to building collapse from fire and other incidents," "requiring a third exit stairway for tall buildings," "increasing the width of all stairways by 50 percent in new high-rises," "strengthening criteria for the bonding, proper installation and inspection of sprayed fire-resistive materials," "improving the reliability of active fire protection systems," "requiring a new class of robust elevators for access by emergency responders in lieu of an additional stairway" "making exit path markings more prevalent and more visible" and "ensuring effective coverage throughout a building for emergency responder radio communications.
He writes that, at the same time, many of the measures advocated by FEMA are invisible to keep the buildings' users from feeling vulnerable. Security has been woven into urban development — especially in New York.
The reason, according to many experts in the field, is in improved building science and increased confidence over the past 20 years.
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