TY - JOUR ID - 82214 TI - Integrated Order Batching and Distribution Scheduling in a Single-block Order Picking Warehouse Considering S-Shape Routing Policy JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - Zare Mehrjerdi, Y. AU - Alipour, M. AU - Mostafaeipour, A. AD - Department of Industrial Engineering, Yazd university, Yazd, Iran Y1 - 2018 PY - 2018 VL - 31 IS - 10 SP - 1723 EP - 1733 KW - Warehouse KW - Order Picking System KW - Order Batching KW - Picker-to-Part Systems KW - Distribution Scheduling DO - N2 - In this paper, a mixed-integer linear programming model is proposed to integrate batch picking and distribution scheduling problems in order to optimize them simultaneously in an order picking warehouse. A tow-phase heuristic algorithm is presented to solve it in reasonable time. The first phase uses a genetic algorithm to evaluate and select permutations of the given set of customers. The second phase uses the route first-cluster method to obtain an effective schedule for a given permutation of customers. Computational experiments represent that integrated approach can lead to significant reduction in the makespan. Moreover, Empirical observations on the performance of the heuristic algorithm are reported. UR - https://www.ije.ir/article_82214.html L1 - https://www.ije.ir/article_82214_5418de521d49e0cbcce42335d66bcc0e.pdf ER -