An Innovative Layout Design and Storage Assignment Method for Manual Order Picking with Respect to Ergonomic Criteria

<i>Background</i>: This paper aims to improve the overall performance of manual warehouse Order Picking (OP) processes by proposing an innovative method for designing a picking area layout, and introducing a storage assignment strategy with respect to ergonomics and workers’ physical fat...

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Main Authors: Vasiliki Kapou, Stavros T. Ponis, George Plakas, Eleni Aretoulaki
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Logistics
Subjects:
Online Access:https://www.mdpi.com/2305-6290/6/4/83
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author Vasiliki Kapou
Stavros T. Ponis
George Plakas
Eleni Aretoulaki
author_facet Vasiliki Kapou
Stavros T. Ponis
George Plakas
Eleni Aretoulaki
author_sort Vasiliki Kapou
collection DOAJ
description <i>Background</i>: This paper aims to improve the overall performance of manual warehouse Order Picking (OP) processes by proposing an innovative method for designing a picking area layout, and introducing a storage assignment strategy with respect to ergonomics and workers’ physical fatigue. <i>Methods</i>: The proposed method categorizes the available picking slots based on size and ABC analysis. Ιt takes into consideration a set of ergonomic constraints pertinent to the rack heights and travel distance restrictions for each slot type, leading to the assignment of a location to each slot type based on its individual characteristics. In doing so, the proposed method introduces an innovative ‘flame-shape’ aisle layout. Finally, the products are assigned to their optimal locations, targeting OP time minimization, balanced workload allocation, and ergonomics optimization through a ranking system measuring the ‘difficulty’ of retrieving the products based on their weight, popularity, and slot location. <i>Results</i>: The proposed method led to a productivity rise of 14.9% along with a significant decrease of the ‘difficulty’ index, by 31%. <i>Conclusions</i>: The results prove that a prominent performance improvement can be achieved when both travel distance and manual workload minimization are targeted for determining the picking area layout and storage design.
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institution Kabale University
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spelling doaj-art-b4db5ee40b0d47b9b87e4909ac275edf2025-08-20T03:58:50ZengMDPI AGLogistics2305-62902022-12-01648310.3390/logistics6040083An Innovative Layout Design and Storage Assignment Method for Manual Order Picking with Respect to Ergonomic CriteriaVasiliki Kapou0Stavros T. Ponis1George Plakas2Eleni Aretoulaki3School of Mechanical Engineering, National Technical University Athens, 10682 Athens, GreeceSchool of Mechanical Engineering, National Technical University Athens, 10682 Athens, GreeceSchool of Mechanical Engineering, National Technical University Athens, 10682 Athens, GreeceSchool of Mechanical Engineering, National Technical University Athens, 10682 Athens, Greece<i>Background</i>: This paper aims to improve the overall performance of manual warehouse Order Picking (OP) processes by proposing an innovative method for designing a picking area layout, and introducing a storage assignment strategy with respect to ergonomics and workers’ physical fatigue. <i>Methods</i>: The proposed method categorizes the available picking slots based on size and ABC analysis. Ιt takes into consideration a set of ergonomic constraints pertinent to the rack heights and travel distance restrictions for each slot type, leading to the assignment of a location to each slot type based on its individual characteristics. In doing so, the proposed method introduces an innovative ‘flame-shape’ aisle layout. Finally, the products are assigned to their optimal locations, targeting OP time minimization, balanced workload allocation, and ergonomics optimization through a ranking system measuring the ‘difficulty’ of retrieving the products based on their weight, popularity, and slot location. <i>Results</i>: The proposed method led to a productivity rise of 14.9% along with a significant decrease of the ‘difficulty’ index, by 31%. <i>Conclusions</i>: The results prove that a prominent performance improvement can be achieved when both travel distance and manual workload minimization are targeted for determining the picking area layout and storage design.https://www.mdpi.com/2305-6290/6/4/83intralogisticsorder pickingwarehouseprocess optimizationergonomicsslotting
spellingShingle Vasiliki Kapou
Stavros T. Ponis
George Plakas
Eleni Aretoulaki
An Innovative Layout Design and Storage Assignment Method for Manual Order Picking with Respect to Ergonomic Criteria
Logistics
intralogistics
order picking
warehouse
process optimization
ergonomics
slotting
title An Innovative Layout Design and Storage Assignment Method for Manual Order Picking with Respect to Ergonomic Criteria
title_full An Innovative Layout Design and Storage Assignment Method for Manual Order Picking with Respect to Ergonomic Criteria
title_fullStr An Innovative Layout Design and Storage Assignment Method for Manual Order Picking with Respect to Ergonomic Criteria
title_full_unstemmed An Innovative Layout Design and Storage Assignment Method for Manual Order Picking with Respect to Ergonomic Criteria
title_short An Innovative Layout Design and Storage Assignment Method for Manual Order Picking with Respect to Ergonomic Criteria
title_sort innovative layout design and storage assignment method for manual order picking with respect to ergonomic criteria
topic intralogistics
order picking
warehouse
process optimization
ergonomics
slotting
url https://www.mdpi.com/2305-6290/6/4/83
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