Analysis of order-picking in warehouses with fishbone layout

Recently new innovative warehouse layouts are suggested that do not follow usual restrictions of ubiquitous traditional designs. One of them, called fishbone layout, showed potential to reduce travel distances in unit-load warehouses by more then 20%. In manual-pick order-picking systems with case and item picking from multiple locations different routing policies are used. In this paper we present the preliminary results of performance analysis of the simplest but also most common in practice routing policy for picking from multiple locations, in comparison with performances in traditional layouts.