Practical factors in order picking planning: state-of-the-art classification and review
这篇综述识别并分类了影响订单拣选效率的实际因素（如高层存储、人为因素、拣选车辆特性），指出学术研究常忽略这些因素，导致理论与实践脱节，并指导未来研究如何提高成果的实用性。
Market trends such as globalisation, increasing customer expectations, expensive industrial land and high labour costs cause a need for efficient order picking systems in practice. However, managers often do not implement findings from academic research on order picking planning into practice because researchers hardly account for practical factors (e.g. high-level storage, human factors, pick vehicle properties) or make unrealistic assumptions in their solution algorithms. A state-of-the-art review of the scientific literature on order picking planning (1) identifies and classifies highly influential practical factors, (2) shows the impact of these practical factors on order picking performance, and (3) illustrates how existing order picking planning models should be elaborated to account for practical factors. This study contributes to close the gap between research and practice by guiding future researchers to further increase the practical applicability of their research results.