Abstract
Order picking is a labour-intensive operation and so it represents significant expenditures, with any underperformance leading to high operational costs for the entire supply chain. Hence, this manuscript reports a research aimed to enhance the order picking process at an automated warehouse. The research included an assessment and restructuring of the storage assignment in the picking area and the picking process, namely the routing method. A simulation model was developed to assess the performance of the order picking, taking in account multiple scenarios, in a total of sixteen scenarios (including three storage assignment policy and five routing methods plus a base case), varying in storage assignment policy and routing method. The results evidence that gains above 30% could be achieved in certain scenarios (e.g.: class-based storage assignment policy with s-shape routing).
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