本文件就结构性和非结构性雨水管理方法向雨水管理机构和相关利益相关者提供指导。该指南包括考虑雨水管理的相关政策、规划、设计标准和实施过程，以及绩效评估。本文件可适用于新的雨水系统，以及完全分离和组合式雨水和卫生下水道的现有系统的扩展或改进。 本文件适用于雨水下水道系统以及合流下水道系统。 本文件不适用于卫生下水道系统。

This document provides guidance to stormwater management authorities and relevant stakeholders on both structural and non-structural stormwater management approaches. The guidance includes consideration of relevant policies, planning, design criteria and implementation processes for stormwater management, and performance evaluation. This document can be applied to new stormwater systems and to the extension or improvement of existing systems for both fully separated and combined storm and sanitary sewers. This document is applicable to stormwater sewer systems as well as combined sewer systems. This document is not applicable to sanitary sewer systems.