Impact of Cross Aisles in a Rectangular Warehouse: A Computational Study

September 30, 2017


Cross Aisles
The warehouse displayed in Case 0 with an interior cross aisle with shortcuts linking main aisle 5 to main aisle 4 and main aisle 4 to main aisle 3

Order picking is typically the most costly operation in a warehouse and traveling is typically the most time consuming task within order picking. In this study we focus on the layout design for a rectangular warehouse, a warehouse with parallel storage blocks with main aisles separating them. We specifically analyze the impact of adding cross aisles that cut storage blocks perpendicularly, which can reduce travel times during order picking by introducing flexibility in going from one main aisle to the next. We consider two types of cross aisles, those that are equally spaced (Case 1) and those that are unequally spaced, which respectively have equal and unequal distances among them. For Case 2, we extend an earlier model and present a heuristic algorithm for finding the best distances among cross aisles. We carry out extensive computational experiments for a variety of warehouse designs. Our findings suggest that warehouse planners can obtain great travel time savings through establishing equally spaced cross aisles, but little additional savings in unequally-spaced cross isles. We present a look-up table that provides the best number of equally spaced cross aisles when the number of cross aisles (N) and the length of the warehouse (T) are given. Finally, when the values of N and T are not known, we suggest establishing three cross aisles in a warehouse.

Ertek, G., Incel, B. and Arslan, M. C. (2007). “Impact of Crossaisles in a rectangular warehouse: A computational study,” in Facility Logistics: Approaches and Solutions to Next Generation Challenges, Editor: Maher Lahmar. Auerbach.

Note: This is the final draft version of this paper. Please cite this paper (or this final draft) as above.

Teaching Warehousing Concepts through Interactive Animations and 3-D Models

view PDF

Dr. Gürdal Ertek @ Social Web:
Dr. Gürdal Ertek @ TwitterDr. Gürdal Ertek @ LinkedIn

You may be interested

Human Resource Management

Cross-cultural training: a crucial approach to improve the success of expatriate assignment in the United Arab Emirates

Dr. Gurdal Ertek - March 29, 2018

[caption id="attachment_1447" align="alignnone" width="450"] Cross Cultural Training United Arab Emirates (UAE)[/caption] Expatriate training and development is progressively turning into a…


A Data Mining Framework for the Analysis of Patient Arrivals into Healthcare Centers

Dr. Gurdal Ertek - March 21, 2018

[caption id="attachment_1423" align="alignnone" width="466"] Mining Patient Arrivals[/caption] We present a data mining framework that can be applied for analyzing patient…

Association Mining

Data Mining of Project Management Data: An Analysis of Applied Research Studies

Dr. Gurdal Ertek - March 19, 2018

[caption id="attachment_1405" align="alignnone" width="504"] Data Mining of Project Management Data[/caption] Data collected and generated through and posterior to projects, such…