Abstract
Assessment of urban growth is considered an important study for urban areas. The growth patterns and dynamics play a pivotal role in defining urban areas. Spatial metrics can prove to be instrumental in analysing these dynamics. The study focuses on categorizing urban growth and quantifying the growth compactness and speed of Bengaluru and Karnataka using built-up obtained from Global Human Settlement Layer (GHSL) and Nighttime Lights (NTLs) data, respectively. The evolution of Bengaluru and the skewed development in Karnataka are also observed. Landscape Expansion Index (LEI) is used to identify growth categories showing that 37.75% of Bengaluru’s growth was as edge expansion. Area-weighted mean Expansion Index (AWMEI), Urban Expansion Intensity Index (UEII) and Shannon’s entropy (SE) are used to quantify growth compactness, speed and entropy, respectively. The city has more growth compactness and speed compared to any other settlement in Karnataka. These urban growth dynamics shall help decision-makers in making data-driven decisions for urbanscape.
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