TY  - CONF
TI  - Multi Item Picking Methodology in Warehouses
C1  - Fortaleza, Brazil
C3  - 21th Annual Conference of the International Group for Lean Construction
SP  - 165
EP  - 174
PY  - 2013
AU  - Borgen, Eirik
AU  - Vaagen, Hajnalka
AD  - Senior Scientist, SINTEF Technology and Society, Department of Applied Economics and Operations Research, NO-7465 Trondheim, Norway, S.P.Andersens vei 5, Phone +47 47 90 38 39, eirik.borgen@sintef.no
AD  - Research Scientist, SINTEF Technology and Society, Department of Applied Economics and Operations Research, NO-7465 Trondheim, Norway, S.P.Andersens vei 5, Phone +47 97 00 01 39, hajnalka.vaagen@sintef.no
ED  - Formoso, Carlos Torres
ED  - Tzortzopoulos, Patricia 
AB  - Order picking is the retrieval of items from warehouses to satisfy in-house orders. Recent research shows that order picking counts for more than half of the warehouse operational costs. In this study a storage assignment clustering methodology and computer implementation is developed to reduce the walking required for an order picking operation. The proposed methodology does not consider routing policy, and does not alter the material handling and storage equipment. The basic principle behind the proposed method is known: items frequently ordered together are clustered in the warehouse. The difference from earlier solutions is in that it avoids full enumeration of the occurrences; a potentially time consuming task. The methodology proposed is based on the transitivity property of implication, allowing for quick computerized processing. The implementation part is potentially the most crucial aspect, as the number of possible clustering combinations is high for construction production systems with thousands of items in the warehouse. Computerised implementation of the population-based enumeration of the occurrences of possible order-combinations is resource-demanding according to computer processing time. Given the waste elimination through reduced order retrieval time, the method is a potentially valuable tool in a company's 'lean toolbox'. The method is primarily suitable for large construction production systems (for example vessel construction) with variable picking orders, and multiple warehouse distribution systems. That said, the method is equally useful for single-warehouse systems. The developed demonstrator is expected to be implemented and tested at a leading Norwegian offshore shipbuilder.
KW  - Lean construction
KW  - inventory control
KW  - variability
KW  - flexible
KW  - time compression
KW  - storage assignment
KW  - order picking.
PB  - 
T2  - 21th Annual Conference of the International Group for Lean Construction
DA  - 2013/07/31
CY  - Fortaleza, Brazil
L1  - http://iglc.net/Papers/Details/880/pdf
L2  - http://iglc.net/Papers/Details/880
N1  - Export Date: 26 April 2024
DB  - IGLC.net
DP  - IGLC
LA  - English
ER  -