This study analyses water risks in the Greater Jakarta mega-city region through a collaborative research methodology. The Jakarta region faces high water-related risks from multiple sources: low access to piped water and sanitation, riverine, surface and coastal flooding, land subsidence and groundwater depletion. The area also provides an illustrative case of multi-level and multi-party governance combining horizontal fragmentation, decentralization and extensive private sector participation.
Data collection, analysis and development of policy recommendations was conducted collaboratively with representatives of national and local governments to ensure the policy relevance of the study and support implementation. The study demonstrated the need to study linkages between water risks and across administrative boundaries. Two follow-up projects are planned on (1) the operationalisation of policy recommendations through Integrated Urban Water Management actions and (2) a study of public risk perceptions of water risks and identification of gaps between public and expert risk assessment.