Simulation Modelling of Chilled Distribution Center for Order Picking Improvement

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Ronnaporn Pattawekongka
Jirachai Buddhakulsomsiri


This article involves a simulation study on a bottleneck labor intensive order picking operation at a cross docking chilled distribution center for perishable products. The objective is to improve the performance of the system in terms of the order picking makespan. A simulation model that imitates the order picking operation is developed. The model captures major sources of system variability including occurrence and amount of daily demand, availability of workforce, and operator picking speed. The model is validated by comparing the makespan obtained from the model output with historical data from the real system. Preliminary test on the simulation model shows that the model can reasonably represent the real system.


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