Land Suitability Analysis for In Situ Slum Redevelopment of Pune City Using AHP, Remote Sensing and GIS Techniques

In India, around 17% of the total urban population is residing in slums. In Pune city, the percentage of the slum population is high, whereas approximately 44% of the urban population resides in slums. It led to a rapid increase in housing demand under the slum redevelopment scheme. Thus, an in situ slum redevelopment scheme is exercised when the slum is located on tenable land. But, there are hardly any proper open spaces and access to the slums. In high-density areas, this may encompass the redevelopment of the whole site to provide more living space and improved environmental conditions. It requires apt spatial planning. Therefore, the present research paper explores land suitability analysis for in situ slum redevelopment of Pune city using the AHP model on Geographical Information System and remote sensing platform. There are seven criteria considered for the identification of in situ slum redevelopment sites. These include land ownership, land value, slum dwelling unit density, slum population density, slope, transport network and land use/land cover. The land suitability map for in situ slum redevelopment is grouped into four classes, i.e., unsuitable, less, moderate and highly suitable. Land suitability for in situ slum redevelopment map reveals that 18% of the area is highly suitable, 60% is moderately suitable, 5% is less suitable, and 17% is unsuitable. The highly and moderately potential sites are low land price, open land, easy to access, located on plain surfaces and far away from hilly areas. It has been taken care of as environmentally sensitive zones are considered either less suitable or unsuitable to protect it. The study has relevance to the sustainable urban planning of the city.