| Summary: | 碩士 === 國立中央大學 === 工業管理研究所 === 95 === The environment of this study is modeled upon a distribution centre in Taiwan. A picker often has to visit more than one zone to pick all items in an order. There is one important restriction with the environment– no more than one picker can work simultaneously in the same zone. This paper focuses on one problem of this environment, i.e. order splitting procedure that the system deals with an order of which number of items needed with an order exceeds the capacity limit of picking box. Eleven order splitting strategies are proposed and studied for the problem. Furthermore, fore order-picking solutions are proposed for assigning orders to each picker. Simulation experiments are conducted to evaluate the performance of the proposed strategies in three performance measures – Total Running Time of pickers (TRT), Total Waiting Time of pickers (TWT), and Total Traveling Distance of pickers (Tdist.). The simulation results show that those strategies based on considering the character of distance are performed better than other strategies without considering that character in Tdist-index. And those strategies based on considering the character of order similarity are performed better than other strategies without considering that character in TWT-index.
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