A note on worker blocking in narrow-aisle order picking systems when pick time is non-deterministic

Pratik Parikh and Russell Meller

IISE Transactions, 2010, vol. 42, issue 6, 392-404

Abstract: The focus of this work is to develop analytical models to estimate worker blocking in narrow-aisle order picking systems. The situation with deterministic pick times has already been reported in the literature but the case with non-deterministic pick times remains an open question. Models that use a non-deterministic pick time for cases where the pick:walk-time ratios are 1:1 and ∞:1 are presented. It is shown that the results obtained using deterministic pick times are in fact sensitive to this assumption.

Date: 2010
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DOI: 10.1080/07408170903171043

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