Order picking accounts for most of the operating expense of a typical distribution center. In discrete order picking a single worker walks to pick all the items necessary to fulfill a single customer order. Discrete order picking is common not only because of its simplicity and reliability, but also because of its ability to pick orders quickly upon receipt, and thus is commonly used by e-comme...

A footwear business is one of highly competitive markets. Footwear businesses must continuously improve three main key performance measures namely quality, cost and lead time. The case study is one of footwear businesses in Thailand. As customer demands are fragmented, the company needs to offer different products to serve customers’ satisfaction. Customer orders are then small quantities, but ...

This study analyzes impacts by batch picking on picker blocking in narrow-aisle order picking, and determines appropriate batch formations for a better order picking throughput. We present multiple-pick analytical models to offer insights about picker blocking in batch picking. Several simulation studies over a variety of batching situations scrutinize order batching situations which give throu...

In this paper, an approach using simulation and optimization to maximize the throughput of an order-picking area is presented. The retrieval of pallets from a high-bay warehouse to the picking stations is formulated as an assignment problem and solved. To consider the dynamic e ects of the materials handling system (con icts, blocking), the optimal static assignment is validated with simulation...

The aim of this paper is to discuss and explain the use of simulation methods in basic research on the most complicated type of processes in internal logistics, namely order-picking process, in case of high-rack warehouse(s). The research was conducted for randomised orders in picking lists. The analysis in the paper leads to determination whether the gained samples of data could be assigned as...

In a business-to-consumer (B2C) context, customers order more frequently and in smaller quantities, resulting high number of consignments. Moreover, online shoppers expect fast accurate delivery at low cost or even free. To survive such market, companies can no longer optimise individual supply chain processes, but need to integrate several activities. this article, the integrated picking-vehic...

The medical business of China Post Logistics is developing day by day. China Post Logistics have been using the Parallel partition picking mode for a long time, but too many shortages have appearing in these two years, especially in the order picking cost and efficiency. This paper analyzes the current order picking mode of China Post Logistics and compare with the Parallel partition picking mo...

This paper discusses an order batching formulation and heuristic solution procedure suitable for a largescale order picking situation in parallel-aisle picking systems. Order batching can decrease the total travel distance of pickers not only through reducing the number of trips, but also by shortening the length of each trip. In practice, some order picking systems retrieve 500~2000 orders per...