ABSTRACT
This chapter presents a case study that considers a slender 32 floor building, built in the 1970s. There were two groups of three lifts situated at each end of the building floor plate, with one group serving a zone of odd floors, and the other group serving a zone of even floors. The ideal shape which allows efficient vertical transportation is compact. The original skip/stop system was designed circa 1970, probably to design criteria for high prestige buildings, i.e.: 15" uppeak handling capacity; a 30 s or less uppeak interval; a density of occupation of one person per 14 m; and a 100" daily attendance. The building was provided with two lobbies, so this gives the opportunity to divide the building into a stacked configuration served from the two lobbies. The lift and door dynamics and passenger handling facilities are improved. The performance of the low zone is within the desired specification of handling capacity and interval.
