Urban Sprawl Analysis and LULC change assessment in Bengaluru Rural, Karnataka, India

Abstract

Abstract Urban regions have grown and developed more quickly around the world. The amount of productive land is significantly reduced by the expansion of the urban perimeter. To ensure sustainable urban growth, research in urban sprawl analysis and land use land cover (LULC) change assessment is crucial. Bengaluru is one of the fastest growing metropolitan cities across the world, and its growth has a significant impact on neighbouring regions. Hence an attempt is made to evaluate the influence of urban sprawl on LULC in the Bengaluru rural district, which surrounds the Bengaluru urban region. In this study, temporal changes in LULC over two decades are assessed by employing remote sensed data and GIS tools. The study area is categorized into five LULC classes: settlement, waterbody, vegetation, agriculture, and barren land. Landsat images of two different timescales are classified using the supervised image classification technique in ERDAS software. The maximum likelihood technique is used for classifying the image, and the accuracy of the classified image is evaluated by accuracy assessment. The study revealed that urban sprawl significantly influenced the LULC classes study area.