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Open AccessArticle

A Comparative Study of the AHP and TOPSIS Techniques for Dam Site Selection Using GIS: A Case Study of Sistan and Baluchestan Province, Iran

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Department of Civil Engineering, University of Texas at Arlington, P.O. Box 19019, Arlington, TX 76019, USA
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M. E. Rinker, Sr. School of Construction Management, University of Florida, P.O. Box 115703, Gainesville, FL 32611, USA
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Department of Civil Engineering, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran
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College of Architecture and Planning, University of Colorado Denver, P.O. Box 173364, Denver, CO 80217, USA
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Department of Civil and Architectural Engineering and Mechanics, University of Arizona, P.O. Box 210072, Tucson, AZ 85721, USA
*
Author to whom correspondence should be addressed.
Geosciences 2018, 8(12), 494; https://doi.org/10.3390/geosciences8120494
Received: 31 October 2018 / Revised: 11 December 2018 / Accepted: 12 December 2018 / Published: 17 December 2018
(This article belongs to the Special Issue Geodesy and Geomatics Engineering)
The application of multiple criteria decision-making (MCDM) techniques in real-life problems has increased in recent years. The need to build advanced decision models with higher capabilities that can support decision-making in a broad spectrum of applications, promotes the integration of MCDM techniques with applicable systems, including artificial intelligence, and Geographic Information Systems (GIS). The Analytic Hierarchy Process (AHP) and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) are among the most widely adopted MCDM techniques capable of resolving water resources challenges. A critical problem associated with water resource management is dam site selection. This paper presents a comparative analysis of TOPSIS and AHP in the context of decision-making using GIS for dam site selection. The comparison was made based on geographic and water quality criteria. The geographical criteria are geology, land use, sediment, erosion, slope, groundwater, and discharge. The water quality criteria include Soluble Sodium Percentage, Total Dissolved Solid, Potential of Hydrogen, and Electrical Conductivity of water. A ratio estimation procedure was used to determine the weights of these criteria. Both methods were applied for selection of optimal sites for dams in the Sistan and Baluchestan province, Iran. The results show that the TOPSIS method is better suited to the problem of dam site selection for this study area. Actual locations of dams constructed in the area were used to verify the results of both methods. View Full-Text
Keywords: dam site selection; water resources; MCDM; topographical conditions; morphological conditions; TOPSIS; AHP; Geographic Information System; Sistan and Baluchestan dam site selection; water resources; MCDM; topographical conditions; morphological conditions; TOPSIS; AHP; Geographic Information System; Sistan and Baluchestan
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MDPI and ACS Style

Jozaghi, A.; Alizadeh, B.; Hatami, M.; Flood, I.; Khorrami, M.; Khodaei, N.; Ghasemi Tousi, E. A Comparative Study of the AHP and TOPSIS Techniques for Dam Site Selection Using GIS: A Case Study of Sistan and Baluchestan Province, Iran. Geosciences 2018, 8, 494.

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