Order picking in carousel systems under the nearest item heuristic


Litvak, N. and Adan, I.J.B.F. and Wessels, J. and Zijm, W.H.M. (2000) Order picking in carousel systems under the nearest item heuristic. [Report]

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Abstract:A carousel is a computer controlled warehousing system, which is widely used to store small and medium sized goods. One of the most important performance characteristics of such systems is the pick time of an order, which mostly depends on the travel time of the carousel. In this paper we consider some reasonable heuristics for order picking. In particular we establish properties of the Nearest Item (NI) heuristic. This one is frequently used in practice. We derive tight upper bounds for the travel time under the NI heuristic, and closed form expressions for its mean and variance. We also present a simple two-moment approximation for the distribution of the travel time. In addition, we find the mean, variance and distribution of the number of turns.
Item Type:Report
Additional information:Imported from MEMORANDA
Electrical Engineering, Mathematics and Computer Science (EEMCS)
Faculty of Behavioural, Management and Social sciences (BMS)
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Link to this item:http://purl.utwente.nl/publications/65711
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