A Two-Step Matheuristics for Order-Picking Process Problems with One-Directional Material Flow and Buffers

The necessity for undertaking this research is driven by the prevailing challenges encountered in logistic centers. This study addresses a order-picking issue involving unidirectional conveyors and buffers, which are assigned to racks pickers with objective of minimizing makespan. Subsequently, two variations two-step matheuristic approach proposed as solution methodologies. These matheuristics entail decomposing primary problem into subproblems. In initial step, free time pickers/buffers solved, followed an investigation order picking An experimentation phase carried out across three versions distribution center layout, wherein one or more allocated spanning 120 test instances. findings indicate that employing mathematical programming-based technique holds promise yielding solutions within reasonable computational timeframes, particularly when distributing products consumers limited product variety order. Furthermore, offers advantages expediency simplicity, rendering it suitable adoption process designing selecting systems.