GIS based modeling using Analytic Hierarchy Process (AHP) for optimization of landfill site selection of Rohtak city, Haryana (India)

Abstract

Landfills are the most common method for the disposal of municipal solid waste the world over, as well as in India due to their low technical and economic requirements. The selection of an appropriate site for the establishment of a landfill is a complex process because it must combine social, environmental and technical parameters. The scientific selection of landfill site is based on several diverse criteria (Land Use and Land Cover, ground water table depth, soil permeability, surface water, roads distance, slop etc) and regulations. The study presents the selection of a site for the establishment of a landfill based on several criteria using geographic information system (GIS) based site suitability modeling and analytical hierarchy process (AHP). Site suitability modeling was implemented using Boolean and Index overlay models. Each criterion and sub criteria was evaluated with the aid of AHP to assign a relative weightage in the index overlay model. Rules and criteria's set by Central Pollution Control Board (CPCB) and Central Public Health and Environmental Engineering Organisation (CPHEEO) were implemented through Boolean model. The combination of the results of the two models generated a map with several suitable sites. Further selection was done on basis of the size requirement of the site, to handle Municipal solid waste (MSW) for next ten years. Two sites having the maximum suitability and also fulfilling the size requirement were shortlisted. Final selection from the two sites was done by a field survey of the sites. Finally the site B was selected on the basis of field survey which revealed it being better on account of certain factors discussed and social acceptability.

Analysis of Life Quality in a Tropical Mountain City Using a Multi-Criteria Geospatial Technique: A Case Study of Kandy City, Sri Lanka

“…The experts, including professional researchers and officers who engage with public services and the welfare of both the government and private sectors were interviewed. Gathering information from experts is a common approach in the AHP and references can be found elsewhere [15,16,30]. In addition to that, we also met with the respective administrative bodies of settlement constructors and land selling companies and carried out discussions.…”

“…The AHP is a technique used to derive ratio gages from paired comparisons, which were initially developed by Professor Thomas L. Saaty in the 1970s [14]. It allows the criteria weights to be measured through pairwise comparison, which depends on the decisions of experts to regulate the priority ranges [15,16]. In the AHP technique, a hierarchical form, including goals, criteria, sub-criteria, and factors are used to solve every problem [15].…”

“…Other than this, conventional research based on field surveys is not cost-effective and is a time-consuming task [17]. Because of its applicability, correctness, theoretical suitability, and capacity for addressing any criteria (intangible and tangible), the integration of AHP with MCDM in LQ analysis is still interesting for multi-disciplinary researchers [15,16]. However, such research is lacking in Sri Lanka.…”

Sistemas de Información Geográfica y Localización de un Relleno Sanitario en Cerro de Pasco

“…En cuanto a los factores ambientales destacan la distancia a las superficies de agua, zonas de conservación de agua, reservas naturales. aeropuertos, tierras especiales, terrenos agrícolas, pendientes de relieve y elevación, orientación de los vientos, permeabilidad del suelo (Deswal & Laura, 2018); (Ding, Zhu, Wu, & Zuo, 2020), cabe resaltar que la importancia relativa de estos factores difiere según la ubicación geográfica (Sisay, Legesse, & Getahun, 2020); (Mohammed, y otros, 2019); (Çeliker, Yıldız, & Nacar, 2019). Con respecto a los factores económicos destacan las pendientes, asentamientos, tierras de bajo valor económico como tierras libres y matorrales, suelos, redes viales, áreas protegidas, aeropuertos, pozos, distancia a los ríos y riachuelos (Sisay, Legesse, & Getahun, 2020) y en relación a los factores sociales destacan la distancia de los caminos, distancia de las áreas pobladas, planes de uso y coberturas de tierras (Deswal & Laura, 2018).…”

“…aeropuertos, tierras especiales, terrenos agrícolas, pendientes de relieve y elevación, orientación de los vientos, permeabilidad del suelo (Deswal & Laura, 2018); (Ding, Zhu, Wu, & Zuo, 2020), cabe resaltar que la importancia relativa de estos factores difiere según la ubicación geográfica (Sisay, Legesse, & Getahun, 2020); (Mohammed, y otros, 2019); (Çeliker, Yıldız, & Nacar, 2019). Con respecto a los factores económicos destacan las pendientes, asentamientos, tierras de bajo valor económico como tierras libres y matorrales, suelos, redes viales, áreas protegidas, aeropuertos, pozos, distancia a los ríos y riachuelos (Sisay, Legesse, & Getahun, 2020) y en relación a los factores sociales destacan la distancia de los caminos, distancia de las áreas pobladas, planes de uso y coberturas de tierras (Deswal & Laura, 2018). Muchos de estos factores no son de naturaleza cuantitativa pasando a ser denominados atributos (Saaty, 1977) por lo que no son sujetos de comparación matemática, así mismo no todos los factores son valorados bajo el mismo grado de importancia por lo que se les asigna un peso a cada factor relativo entre sí.…”