Bhubaneswar

Urban agglomeration is an expansion of city center with its adjoining outgrowth or suburbs. Urban agglomeration is a recent phenomenon in Indian society, which do not accommodate the haphazard growth of human settlements. The main objective of this study was to identify the recent urban changes in Bhubaneswar and its periphery. Bhubaneswar is the capital of Odisha and it was planned in the year 1948. The city could not grow in the envisaged manner as it is surrounded by the Chandaka Wildlife sanctuary in the northwest section and by flood plains on the eastern side. The present study examines the use of Index Based Model for delineation of the urban sprawl of Bhubaneswar city. Index-based built-up index (IBI), is a normalized difference index used for the extraction of built-up land features. The above-mentioned model can be efficiently used by taking three known indices viz. NDBI, SAVI & MNDWI. Satellite imageries of IRS-P6 and Landsat 7 (ETM+) & 8 (OLI) has been used in the study with the efficient use of ArcGIS. The study manifest that, there has decreased in the area under vegetation cover and the increase in the settlements and crop land. It has been found from the study that Index-based Built-up Index (IBI) is a good method to determine the dispersion of built-up land feature in the city, within the slight limitation of the model. The urban development of Bhubaneswar is going in an unplanned manner which have an adverse effect on both human and natural resources. The results of this work conclude that Remote Sensing and GIS techniques can be methodical used in the study of urban agglomeration and its adjoining urban areas.