What Is A Sky Lobby in Buildings?
What Is A Sky Lobby in Buildings?
A sky lobby is a floor in a tall building where people can switch from express elevators, which only stop at the sky lobby, to local elevators that provide access to other floors above.
It serves as an intermediate level between an elevator transfer and provides convenient access points for staff or visitors to move around the building with minimal disruption.
Sky lobbies generally feature many facilities such as seating, restrooms and vending machines, making them a desirable place to relax while waiting for an elevator. Such structures maximize the use of space and ensure less crowded conditions compared to traditional elevator designs.
Why Are Sky Lobbies Provided?
Sky lobbies are provided to save elevator shaft space in very tall buildings. This system divides the building vertically into sub-buildings, each with its sky lobby floor.
Express elevators from the ground floor take passengers up to their respective sky lobby floors, where they can transfer to local elevator banks that travel upwards or downwards more slowly, allowing for efficient and organized usage of space.
Sky lobbies also provide a sense of safety and security as people are not traveling directly from the ground to the top–they can transfer at an intermediate level and search for their desired destination more easily.
What Is The Purpose Of A Sky Lobby?
The purpose of a sky lobby is to serve as an intermediate stopping point while using elevators in a skyscraper, allowing passengers to switch from express elevators that stop at the sky lobby only, to local elevators that travel only to certain higher floors.
Sky lobbies also provide a convenient and safe place for people to wait or meet before continuing their journey upwards. This separation between express and local elevators reduces overcrowding and allows for more efficient management of elevator traffic.
In addition, by providing fixed locations where passengers can change elevators, safety is increased and evacuation times decreased in the event of an emergency.
What Was The Effect Of Sky Lobbies?
Sky lobbies were a popular architectural concept during the 20th century, where buildings would include a secondary elevator bank to service intermediate floors. The idea was to reduce congestion by requiring people on those levels to switch elevators.
However, this practice had some negative effects. It increased travel time as people had to move between elevators and it also necessitated more elevator shafts, which reduces the usable floor space on each floor for all levels.
As a result, sky lobbies became less popular in later decades, but their legacy still remains in many tall buildings.
What Floor Was The Sky Lobby In The South Tower?
The sky lobby in the South Tower of the original World Trade Center was situated on the 78th floor and housed nearly 200 people at the time Flight 175 hit it directly.
Sadly, only about a dozen of those people were able to escape from the tower before it collapsed following impact.
What Are The Advantages Of Sky Lobby?
Sky lobbies provide numerous advantages, such as the ability to seamlessly transfer passengers from large express elevators to smaller, local elevators on the same floor with ease.
This eliminates the need for building multiple elevator shafts since all the necessary ones are located at the lowest level of each zone.
Furthermore, this provides an opportunity to save rentable space that would have otherwise been used for additional lifts and thus freeing up much-needed space for other important functions.
In addition, Sky lobbies reduce waiting times as passengers no longer require separate elevators for each floor and can switch between them quickly into a local lift that reaches their desired destination.
This greatly increases efficiency and allows more people to travel in a shorter amount of time.