MANAGE: A Consolidated End-To-End Multi-Hazard Web-Based Flood Risk Information System for Coastal Regions

Effective flood risk management is often constrained by the lack of efficient dissemination of flood-related information to key stakeholders, including vulnerable communities. To address this critical gap, global disaster management organizations advocate for the establishment of robust information channels, aligning with the objectives of the United Nations Sustainable Development Goals (SDGs) 11 and 13, which emphasize building secure, resilient, and sustainable cities. To address this, this study introduces ‘MANAGE’, a web-based flood risk information system for a multi-hazard coastal catchment in India. MANAGE integrates high-resolution flood modeling, Multi-Criteria Decision-Making tools, and statistical techniques to provide a comprehensive repository of flood hazards, physical and socio-economic vulnerabilities, and bivariate flood risks at the finest administrative scale. Results reveal that flood risk is primarily influenced by physical vulnerability (69.86%), while combined indicators (51.6%) and socio-economic factors (39.66%) also play significant roles. The MANAGE platform is designed with a user-friendly architecture, offering enhanced accessibility through smartphone compatibility and multilingual support, ensuring seamless use by diverse end-user groups, including vulnerable populations. The study further proposes engineering measures and policy recommendations to enhance existing flood management strategies and build a roadmap for future resilience.