The order picking problem in fishbone aisle warehouses
نویسندگان
چکیده
A recent trend in the layout design of unit load warehouses is the application of layouts without conventional parallel pick aisles and straight middle aisles. Two examples for such designs are flyingV and fishbone designs for single and dual command operations. In this study, we consider the same layout types under the case of multiple-item pick lists and show that, for both layout types, the routing problem can be solved in polynomial time. We also propose simple heuristics for this problem inspired by those put forward for parallel-aisle warehouses. Our computational results reveal that under certain cases, fishbone design can perform as high as 30% worse than an equivalent parallel-aisle layout, and a modification of the aisle-by-aisle heuristic produces good results compared to other heuristics.
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