Documented interventionEvidence quality: ModerateDemonstration record — not a real case
Demonstration case: Resident-led drain desilting rota
Demonstration · Urban · Neighbourhood · tropical
Residents organise a monthly rota to clear drains ahead of the rainy season, with the local council collecting the silt.
Problem addressed
Seasonal flooding caused by blocked drains.
Intervention / business model
Monthly rota; council collection of silt; simple reporting of blockages.
Measured outcomes
Illustrative only — no measured outcome is claimed.
Failures & unintended consequences
Volunteer fatigue after the first season.
Conditions required to adapt elsewhere
Requires local institutional buy-in and a named maintenance owner.