Implementation Guideline – Water retention areas using the Delay – Store – Drain concept

URBAN ECOSYSTEM-BASED ADAPTATION
to climate change in Viet Nam

The guidelines provide an in-depth analysis of the technical concepts regarding the measures and the financial requirements for users. Additionally, practice examples and recommendations for practical implementation are included. It, therefore, does not provide specific technical standards or mandatory regulations, but rather suggests general principles to guide the development of water retention areas based on the delay-store-drain concept.