An analysis of elevator operation in moderate height buildings--II: Multiple elevators

Beryl Gamse and G. F. Newell

Transportation Research Part B: Methodological, 1982, vol. 16, issue 4, 321-335

Abstract: Deterministic approximations for elevator trip times are applied to a system of m elevators. Comparisons of in-system time of passengers are made for elevators which are (a) physically separated, (b) ideally controlled, (c) zoned, or (d) uncontrolled. A more detailed study is then made of in-system passenger time for a pair of elevators subject to a minimum headway control at the lobby. Comparisons are made between rather primitive analytic estimates and simulation results. The main conclusion is that control of headways so as to prevent pairing is of doubtful value. At low traffic it is usually better to use no control; for higher traffic it is better to zone the building and have each elevator serve separate floors.

Date: 1982
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