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Purpose The objective of this study is to develop an algorithm which can increase productivity of lift operation on temporary twin-cage and multi-cage lifts for construction sites. the algorithm is developed for optimizing operation efficiency at high-rise construction sites. Moreover, it is expected that the algorithm can reduce working hours and traffic queues through operation optimization. Method The developed algorithm can optimize lift operation time by using a lifting cycleestimating method which is generated based on the fundamental concerns when lift scheduling is planned. Lifting cycleestimation is a vital part for an arithmetic computation based on lift selection algorithm which controls factors such as distance between each lifts, among passengers, and distances among lifts according to moving direction. Results & Discussion We carried out surveys and conducted interviews with mechanical and construction professionals to analyse fundamental considerations of material lifting operation planning. We extracted the weight of each of the relevant factors. Based on the weight of factors, we set the lifting cycle-estimate suitable for high-rise buildings. The optimized operating algorithm is extracted through lifting cycle-estimates. Finally, we propose the prototype of an interface that is embedded into the lift with the optimized operating algorithm.

cCnt) said theyN cullcd shiccp as a clmethod of control of toot rot. A similalri figJure for cullillg was fOulid in the 1994 surxev by (Grogono-Thomas anid Johnstoin ( 1997). Eight farmc'rS ( 5 pCI cent) replied that they, aimed to breed sheep More resistanit to foot rot Table 2). Resear-chi coniducted in ALstr-aliIa ()Raadsmia anid othel-s 1994) aind New Z/ealaid (NIloorIhouse and Skerimian 1988) suggests that there is a relatixvely hioh heritabilitx coefficieit for resistaince to foot rot.Ilhc combinations of foot r-ot cointrol mileaSuIIeCS used bv farmer-s was large aind Oi) onie combinaitioni wvas used bh more thainl any fixve farmers wsho aniswered the questiorInaire.A significant negative associatioin wvas found betweel the perceix ed ilmportanice of the foot rot problem arnd the repor-ted e'ftfctixelness (it contr-ol methods used in the flock (chii-sqtLeai-d = 10f), P<00 (l ) (Blanid 1995). However, fari-m CrS Wre 11101w e positiVCe aboUt the effectiveness of trecatimieInt in cixd icdUal sIheep inrespective of the perceived importaiice of the problem (chi-squared = 23, P>O I ) ((Blanid 1995)) ( Table 3). heinlitial conclcsion0s from0l this questioiiaile are that thelre is little coitscitsuis aromog the farmers who replied about the best methiods to tre-at indiidual sheep with foot rot arid to conti ol foot rot in a flock. The nIulberl of COnItrol ComblinatiOnIS ulscd was remla-kable, bLut fewN, if any, adopted( exen the Imlost csscential imlaniagemicnlt prIactices fo the couit -ol ot-an infectiOLS condition, in particular, segreg.atioll of infected sheep anid the quLaranitine of flock eintiaiats.

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