Abstract Urban expansion in mid-sized Indian cities is increasingly reshaping demographic, infrastructural, and environmental systems. Understanding how urban infrastructure responds to spatial growth is critical for sustainable regional planning. This study investigates the structural relationship between geographic expansion and key urban development indicators in Satara City, Maharashtra, over three decades (2001-2021). Using regression-based exploratory modeling, the study evaluates scaling relationships between area expansion and demographic, housing, infrastructure, and social service variables. Results indicate strong spatial scaling effects for population (R² = 0.975), slum population (R² = 0.965), new housing development (R² = 0.961), and road infrastructure (R² = 0.937), suggesting that urban expansion closely aligns with demographic and physical growth. However, weaker associations were observed for schools (R² = 0.351) and fire stations (R² = 0.250), indicating institutional and policy-driven development patterns independent of spatial growth. While limited temporal observations restrict inferential generalization, consistent high explanatory power across multiple variables highlights structural growth dynamics. The findings contribute to urban sustainability discourse by demonstrating that infrastructure elasticity varies across sectors, emphasizing the need for anticipatory planning mechanisms in rapidly expanding regional cities.
Kalbhor et al. (Sun,) studied this question.