The Shanghai Tower (the tall one) will be one of the first buildings to have ultra-high-speed elevators developed by Mitsubishi (Image: Gensler Architects)
Due to the number of stairs that needed to be climbed to reach the top, buildings of over six storys were a rarity until the 19th century when the development of passenger elevators - along with advances in building materials and techniques - enabled the construction of taller and taller buildings. As skyscrapers continue to reach ever higher, elevators are required to carry more people further, faster. Mitsubishi already has the first problem licked with the development of elevators able to carry 80 people at once. Now it has tackled speed with technologies that enable ultra-high-speed elevators to travel at more than 60 km/h (37 mph or 1,000 meters a minute).
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