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The order picking in warehouses is the process of retrieving items from different storage locations according to customer orders. It is often the most consuming processes regarding workforce engagement in warehouses and significantly affects the wholesale warehouse operating costs. In warehouses with manual picking operations, pickers routing time often is the main determinant of the picking time. There many strategies for organizing order picking routes. One of the basic and is commonly used ones is S-shape strategy due to its practicality and ease of implementation. However, this strategy rarely is the optimal, but can be relatively easily adapted to the certain warehouse conditions. Thus, the paper presents a study on few systematic modifications of the classical S-shape strategy adjusted to the structure of aisles that can be found in different warehouses. Detailed assessment of the efficiency improvement of each proposed modification is provided.
Keywords: order picking, s-shape, warehouse© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.