Simulation of Elevator System for World's Tallest Buildings

The design of the world's two tallest buildings, each 110 stories high, calls for a unique elevator system utilizing 95 local and express passenger elevators per building. Conventional elevator systems' evaluation criteria were supplemented by traffic data and the use of simulation to determine accurately the expected service levels throughout the building. In order to measure the design system's capabilities and to develop and evaluate changes in the elevator specifications, a second-by-second simulation of an entire tower building's elevator operation has been developed, programmed, validated, and applied. Data were collected to develop expected passenger arrival and departure distributions and to determine elevator characteristics—acceleration and deceleration, loading and unloading times. Traffic input data for each of the individual local and express elevators was generated by a series of programs. The computations and logic of the group supervisory control systems for local and express banks are incorporated in simulation programs.