Conventional project-level CBA suffers from systematic limitations when applied to flood protection in coupled human-water systems
Research gap analysis derived from 3 engineering papers in our local library.
The gap
Conventional project-level CBA suffers from systematic limitations when applied to flood protection in coupled human-water systems. Standard evaluation periods of 20-50 years may be too short to capture rare hydrological extremes or delayed consequences of infrastructure decisions. The study notes that there is limited literature analyzing the interactions it focuses on.
Evidence profile
Sourced from the stated challenges and stated research gap and limitations section of the source papers, classified as general, spanning 2 journals. Those papers have been cited 1 times in total.
Research trend
Established — well-defined area with open sub-problems.
Supporting evidence — 3 representative gaps
- Identifying Urban Functional Zones and Multi-Dimensional Flood Risk Connectivity: Integrating POI Semantic Representation and Spatial Network Analysis (2026) · ISPRS International Journal of Geo-Information · doi
The complexity of urban flood risk assessment due to fine-scale functional differentiation and cascading risk connectivity. The need to integrate multiple data sources and methods for a comprehensive understanding of urban flood resilience. The challenge of characterizing multi-path flood risk connectivity patterns using hydrological connectivity, functional coupling, and road cascading failure models.
generalstated challengesKeywords: complexity urban flood risk assessment due fine-scale functional - Multi-Metric Flood Hazard Characterization Using Daily Rainfall Runoff Dynamics: A Comparative Analysis of Rufiji and Mirongo Catchments, Tanzania (2026) · ISPRS International Journal of Geo-Information · doi
Inadequate infrastructure planning, informal settlements in floodplains, and limited hydrometeorological monitoring networks exacerbate flood impacts. There is a need for geospatially explicit and statistically robust flood hazard assessment frameworks. Current frameworks do not capture flood magnitude, frequency, spatial distribution, and hydrological response dynamics under changing climatic conditions.
generalstated research gapevidence 5/5Keywords: inadequate infrastructure planning informal settlements floodplains limited hydrometeorological - Short-term optimization, long-term vulnerability: system-level economics of flood protection and urban development in the Shinanogawa River (2026) · Frontiers in Water · cited 1× · doi
Conventional project-level CBA suffers from systematic limitations when applied to flood protection in coupled human-water systems. Standard evaluation periods of 20-50 years may be too short to capture rare hydrological extremes or delayed consequences of infrastructure decisions. The study notes that there is limited literature analyzing the interactions it focuses on.
generallimitations sectionevidence 5/5Keywords: conventional project-level cba suffers systematic limitations applied flood
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