-Storage location optimization
- Storage layout optimization
Storage Mode optimization
Assign each item to its least cost storage mode
Based on each item's demand and dimensional characteristics, each storage mode's capabilities and costs, and general planning parameters, each item should be housed in the storage mode that minimizes the cost of storage and handling for the item. For pallet storage, a decision must be made for each item as to whether to assign it to positions in floor storage, single-deep double-deep rack, drive i thru rack, push-back rack, or mobile rack(see Fig- ure For small item storage, a decision must be made for each item as it to positions in bin shelving, storage flow rack, whether to assign horizontal carousels, vertical carousels, miniload automated storage/retrieval systems, or automated dispensing machines(see Figure 8-26) An example storage mode optimization is Figure 8 in In the exam least cost storage mode for the item including the cost of picking restocking labor, equipment, space, and errors is a vertical carousel In Figure 8-28, an example of pallet storage mode optimization is illus treated. In the example, the drive-thru rack using a single-deep counterblast acne truck is the least cost alternative.
Storage space optimization
Assign each item its optimal allocation of space.
One of the key decisions in storage system design is whether or not to e stab list a forward picking area separate from the reserve picking area. Because a minority of the items in a warehouse generate a majority of pick requests, a condensed picking area containing some of the inventory of popular items should normally be established. (Otherwise, the pick-from-storage scheme described in Section 8.7, "order Picking operations," may be justified.)
The smaller the allocation of inventory to the forward area(in terms of number of Skus and their inventory allocation), the smaller the forward picking area, the smaller the travel times, and the greater the picking productivity. However, the smaller the allocation, the more frequent the internal replenishment trips between forward and reserve areas, and the greater the staffing requirement for internal replenishment. Figure 8-29 illustrates the cost trade offs in forward-reserve planning.