616 research outputs found
Routing order pickers in a warehouse with a middle aisle
Get PDFPlease refer to this article as: Roodbergen, K.J. and De Koster, R. (2001), Routing order pickers in a warehouse with a middle aisle. European Journal of Operational Research 133(1), 32-43. This paper considers a parallel aisle warehouse, where order pickers can change aisles at the ends of every aisle and also at a cross aisle halfway along the aisles. An algorithm is presented that can find shortest order picking tours in this type of warehouses. The algorithm is applicable in warehouse situations with up to three aisle changing possibilities. Average tour length is compared for warehouses with and without a middle aisle. It appears that in many cases the average order picking time can be decreased significantly by adding a middle aisle to the layout
Robust Design of Public Storage Warehouses
Get PDFWe apply robust optimization and revenue management in public storage warehouses. We optimize the expected revenue of public storage warehouses against the worst cases with a max-min revenue objective, and the decision variables are mainly the number of storage units for each storage type. With the robust design, we can observe worst-case revenue improvement
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