This is to supplement the course and the book Warehouse & Distribution Science, at the Georgia Institute of Technology, by John J. BARTHOLDI, III and Steven T. HACKMAN. Everyone is welcome to use the book and materials for educational purposes, as long as all copyrights remain intact.

Access Business Group

ABG ships cosmetics and personal care products to independent business organizations around North America. A customer typically receives one shipment a week, on an assigned schedule. The volume is quite seasonal and the busiest time is at the first of each month. This reflects monthly incentives for sales, a result of which is that orders peak at the end of each month, with shipping the following week.

There are multiple picking areas within the warehouse, including separate areas for picking full-cartons (both fast-pick and slow-pick areas); and for picking less-than-carton quantities (both fast-pick and slow-pick areas).

ABG distribution center
ABG distribution center
This DC picks cartons and eaches. The mezzanine, from which this photo was taken, is where shipping boxes are built.
Boxes ready to be filled
Boxes ready to be filled
An automated box builder queues three sizes of box upstairs.
Boxes with license plates
Boxes with license plates
After the WMS assigns orders to boxes, a printer produces the license plates, which are attached to boxes and sent to the pick area.
Fast-pick area
Fast-pick area
The flow rack is shallow on the conveyor side and deeper on the opposite side.
Pick-to-light
Pick-to-light
The zone control panel says "Pick tote 02287" and lights up the appropriate storage locations.
Restocking
Restocking
Full pallets are brought to restock the fast-pick area. Any excess cartons are staged behind the flow rack.
To shipping
To shipping
Completed orders flow to check-pack-ship stations.
Fast-pick area for cartons
Fast-pick area for cartons
Fast-pick area for cartons
Fast-pick area for cartons
Popular skus that are light and bulky sit on rollers near the conveyor.
Carton-picking area
Carton-picking area
Includes both pallet and carton flow rack
Slow-pick area for eaches
Slow-pick area for eaches
Workers pick according to the shipping list in each box: There is no pick-to-light in this area.
Slow-pick area for eaches
Slow-pick area for eaches
Note the shallow flow rack.