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Multi-storey car parks which have a staggered arrangement of parking levels sometimes use a convention where there may be an "upper" and "lower" level of the same floor number, (e.g.: "1U/U1" = Upper 1st, "L2/2L" = "Lower 2nd" and so on), although the elevators will typically only serve one of the two levels, or the elevator lobby for each ...
A mechanical floor, mechanical penthouse, mechanical layer or mechanical level is a story of a high-rise building that is dedicated to mechanical and electronics equipment. "Mechanical" is the most commonly used term, but words such as utility , technical , service , and plant are also used.
If the service core (which contains the elevator shafts) becomes too big, it can reduce the profitability of the building. Architects must therefore balance the value gained by adding height against the value lost to the expanding service core. [10] Many tall buildings use elevators in a non-standard configuration to reduce their footprint.
[151] [168] Two elevators also ran directly from the lobby to the Skydeck on the 103rd floor. [169] As of 2018, the elevators carried 5.8 million passengers per year. [123] [124] Six of the elevators are used for freight. [159] One of the freight elevators served all stories, traveling to a height of 1,440 feet (440 m). [169]
Because of the building's height, it was deemed infeasible to have many elevators or large elevator cabins, so the builders contracted with the Otis Elevator Company to make 66 cars that could speed at 1,200 feet per minute (366 m/min), which represented the largest-ever elevator order at the time. [236]
To reach an odd-numbered floor from ground level, passengers must take an escalator to the upper deck of the lift. [40] There are 29 double-deck passenger elevators, but there are different sets that service certain floors of the towers, specifically two sets of six of these double-deck passenger elevators to floors 1–23 and 1–37 respectively.
If conquering the stairs is becoming a Herculean task, the idea of installing a stair lift may have crossed your mind. But maybe the cost of a stair lift appears too steep a climb for your budget.
Located at the top of the elevator was a catwalk that extended 35 feet (11 m) stretching across and connecting the elevator to the cliffside. [6] The elevator was so popular that most of the cliffside stairs were removed. The elevator was converted to electric drive in 1924, which reduced the time to 30 seconds. [5]