Elevator 22
Elevator 22 : Controlling Elevators: (5) Destination Control System: Some skyscraper buildings and other types of installation feature a destination operating panel where a passenger registers their floor calls before entering the car. The system lets them know which car to wait for, instead of everyone boarding the next car. In this way, travel time is reduced as the elevator makes fewer stops for individual passengers, and the computer distributes adjacent stops to different cars in the bank. Although travel time is reduced passenger waiting times may be longer as they will not necessarily be allocated the next car to depart. During the down peak period the benefit of destination control will be limited as passengers have a common destination. It can also improve accessibility, as a mobility-impaired passenger can move to his or her designated car in advance. Inside the elevator there is no call button to push, or the buttons are there but they cannot be pushed except door opening and alarm button they only indicate stopping floors. The idea of destination control was originally conceived by Leo Port from Sydney in 1961 but at that time lift controllers were implemented in relays and were unable to optimise the performance of destination control allocations. The system was first pioneered by Schindler Elevator in 1992 as the Miconic 10. Manufacturers of such systems claim that average traveling time can be reduced by up to 30%. However, performance enhancements cannot be generalized as the benefits and limitations of the system are dependent on many factors
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