If the World Trade Center attack had occurred at a busier time, it would have taken occupants four hours to get down the stairs—hours they didn’t have. The solution: emergency elevators. Surprising? They exist in the U.S. only in Las Vegas’s Stratosphere Tower, but experts expect they’ll eventually be a skyscraper requirement. To make elevators fire-safe, shafts are sheathed in concrete, studded with heat sensors, and pressurized to keep out smoke. Cars have heat- and water-resistant electronics. Not in the plans: The Freedom Tower won’t have truly fire-safe elevators, but there will be lifts for rescuers and disabled occupants to use in an emergency.
I think mankind is evolving day by day thanks to the help of new and innovative technologies. We really have to give credit to the people behind all thaws scientific advancements. I think emergency elevators will definitely help people who are working in skyscrapers like this not just because another terrorist attack may occur but because another emergency situation occurs.. Now if you really didn't understand that, let me explain. If fire catches in a building and the people want to escape the best way is to get down through elevators rather than through stairs! All the building be it <a href="http://www.chacha.com/topic/commercial">commercial</a> malls or offices they are adapting to such new products which will increase the safety I really think this is a great plan!