Climate Resilience in water management is shifting from traditional Grey Infrastructure toward the Blue-Green City concept. This approach integrates Blue-Green Infrastructure and Hybrid Solutions to address rising sea levels and intense rainfall. In Singapore, coastal flood risk is managed through a Source-Pathway-Receptor framework supported by Adaptive Management and integrated planning.
| Framework | Engineering Mechanism | Resilience Outcome |
|---|---|---|
| Source-Pathway-Receptor | Stormwater management at rainfall sources and along propagation pathways | Reduced exposure to intense rainfall and urban flood risk |
| Hybrid Solutions | Mangroves integrated with sea walls and tidal gates | Combined ecosystem services and engineered coastal protection |
| Holistic Risk Assessment | Coastal-Inland Flood Model simulations | Informed Adaptive Management and no-regret investment decisions |
What is a Blue-Green City?
A Blue-Green City integrates water supply, wastewater, drainage, and coastal systems to improve resilience to extreme weather. Blue-Green Infrastructure complements or replaces capital-intensive grey assets by delivering flood mitigation alongside ecosystem services.
How does Singapore use a Source-Pathway-Receptor approach for coastal protection?
In Singapore, flood risks are managed by addressing hazards at the source, controlling transmission pathways, and reducing impacts at receptors. This Source-Pathway-Receptor approach enables coordinated planning and Adaptive Management across coastal and inland systems.
How does Singapore’s Coastal Protection Master Plan function?
Singapore’s Coastal Protection Master Plan applies Integrated Planning supported by a Coastal-Inland Flood Model. By simulating combined sea-level rise and rainfall scenarios, the Public Utilities Board can deploy Hybrid Solutions that balance hard engineering with nature-based elements.
Frequently Asked Questions
What is the Blue-Green City concept in water management?
The Blue-Green City concept shifts water management from isolated grey infrastructure toward integrated systems that enhance Climate Resilience through Blue-Green Infrastructure.
How does Singapore manage flood risks through Source-Pathway-Receptor?
Singapore applies a Source-Pathway-Receptor framework that combines integrated planning with Adaptive Management to reduce coastal and urban flood risks.
How does Singapore’s Coastal Protection Master Plan function?
The Coastal Protection Master Plan uses Integrated Planning and a Coastal-Inland Flood Model to guide Hybrid Solutions for long-term resilience.
Explore the Full Intelligence Report
For a concise, system-level analysis of climate resilience, infrastructure, and coastal defense, read the full report: Water Utility of the Future: Singapore’s Public Utilities Board.