Spatial Service Location-Allocation Analysis for Siting Recycling Depots
Publication: Journal of Environmental Engineering
Volume 139, Issue 8
Abstract
Although recycling depots can promote recycling, their spatial distributions significantly affect efficiency. Despite the ability to locate depots throughout a region by minimizing total service distance, residents in sparsely populated areas may have to travel long distances to a depot. Although increasing the number of depots can reduce these distances, the associated costs increase. This study develops six optimization models based on the three objectives of minimizing maximal service distance, maximizing the service ratio, and minimizing the number of depots for district-based, district-open and nondistrict scenarios. Three factors, service distance, district equity, and service ratio, are used to assess the performance of models. A case study of 16 districts is utilized to demonstrate the application of the models. Minimizing the number of depots under the nondistrict scenario achieves a good service ratio with short service distance using fewer depots than other models. The proposed models will facilitate efforts to determine an appropriate spatial distribution of recycling depots.
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Acknowledgments
The authors thank the National Science Council, Taiwan, R.O.C. for providing partial financial support of this work under Grant No. NSC 100-2221-E-009 -008.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 139 • Issue 8 • August 2013
Pages: 1035 - 1041
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Feb 17, 2012
Accepted: Apr 15, 2013
Published online: Apr 16, 2013
Published in print: Aug 1, 2013
Discussion open until: Sep 16, 2013
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