Spatio-temporal impact of industrial corridor development on built-up growth: a case of Delhi-Mumbai industrial corridor, India

Industrial corridors have a determinate effect on the transformation of its surrounding regions and cities. This study analyses the influence of Delhi-Mumbai Industrial Corridor (DMIC) in India, on land cover transformation and built-up growth along its 1500 km stretch. Comparative analysis was done between percentage of built-up in the districts falling within DMIC influence area, districts outside the influence area and the states/union territories in totality for the years 2005, 2010, 2015 and 2020. The built-up percentage within the DMIC influence area was consistently found to be higher in comparison to the area outside the influence; clearly indicating the impact of corridor development. The sharp increase in built-up growth was observed after 2015, post which major part of DMIC came up. Further micro-level land cover transformation and built-up growth analyses were conducted on the city of Surat, using NDBI and Shannon's Entropy methods to identify the nature and direction of transformation from 2005 to 2020. Surat was found to have undergone dynamic growth in built-up area from 25.78% in 2015 to 32.57% in 2020. Evidence indicates that corridor development and industrial growth directly impacts built-up growth and land cover transformation.