A Hybrid CRITIC-TOPSIS Model for Robust Assessment of Urban Environmental Quality: A Case Study of Bengaluru City

Resumo

Urban Environmental Quality (UEQ) reflects the balance between human activities and envi
ronmental sustainability within a city. Rapid urbanization in Bengaluru has led to issues such as rising air
and water pollution, reduced green cover, and increasing waste generation, all affecting residents’ quality of
life. This study aims to assess the environmental quality of Bengaluru city using an integrated Multi-Criteria
Decision-Making (MCDM) framework based on the CRITIC (Criteria Importance Through Inter-criteria Cor
relation) and TOPSIS(Technique for Order Preference by Similarity to Ideal Solution) method.Environmental
indicators including air quality, green cover, water quality,traffic congestion, waste generation, and population
density were analyzed across different city zones. The CRITIC (CRiteria Importance Through Intercriteria
Correlation) method was employed to derive objective weights for each criterion, and TOPSIS method for
ranking to evaluate the Urban Environmental Quality of Bengaluru’s central, outer, and industrial zones. The
f
inal environmental quality scores were computed and visualized using GIS mapping to identify areas of high
and low environmental performance. Findings reveal spatial disparities in environmental quality — central
and industrial areas show poor air conditions, while peripheral zones maintain better ecological balance. The
study highlights the importance of integrating objective weighting techniques with geospatial analysis for
effective and sustainable urban planning in rapidly growing cities like Bangalore.