由美国土木工程学会环境和水资源研究所标准发展委员会城市排水标准委员会编制。这套三个标准的单一卷集确立了城市雨水系统的设计、安装、运行和维护指南。ANSI/ASCE/EWRI 45-16为城市雨水系统的设计提供了指导，包括场地分析、系统配置、水文学、水力设计、非结构因素、结构设计和材料等主题。ANSI/ASCE/EWRI 46-16介绍了这些系统的安装指南，并讨论了合同文件、施工前现场检查、施工和检查等主题。 ANSI/ASCE/EWRI 47-16提供了这些系统的操作和维护指南，包括操作和维护计划、水质、定期检查和维护。在这个取代2005年标准的新版中，增加了许多技术细节，这些细节来源于原始的实践研究，尤其是在水文、水力设计和结构设计领域。在这些标准中，添加了新的参考文献，并更新了其他参考文献。城市雨水系统的设计、安装、运行和维护的标准指南为地表雨水的收集和输送提供了全面指导。这三个标准适用于机场、道路和其他交通系统，以及工业、住宅和娱乐区。 与城市雨水系统合作的工程师和规划师，以及此类系统的所有者，将发现这些更新的标准是一种宝贵的资源。

Prepared by the Urban Drainage Standards Committee of the Standards Development Council of the Environmental and Water Resources Institute of the American Society of Civil EngineersThis single-volume set of three standards establishes guidelines for the design, installation, and operation and maintenance of urban stormwater systems. ANSI/ASCE/EWRI 45-16 provides guidance for the design of urban stormwater systems, covering topics such as site analysis, system configuration, hydrology, hydraulic design, nonstructural considerations, structural design, and materials. ANSI/ASCE/EWRI 46-16 presents guidelines for the installation of these systems and discusses subjects such as contract documents, preconstruction site inspection, construction, and inspection. ANSI/ASCE/EWRI 47-16 provides guidelines for the operation and maintenance of these systems, including operation and maintenance plans, water quality, periodic inspection, and maintenance. In this new edition, which supersedes the 2005 standards, numerous technical details have been added, drawn from original, practical research, particularly in the areas of hydrology, hydraulic design, and structural design. Throughout these standards, new references have been added and others updated.Standard Guidelines for the Design, Installation, and Operation and Maintenance of Urban Stormwater Systemsoffers comprehensive guidance for the collection and conveyance of surface stormwater. The three standards are useful in applications such as airports, roads, and other transportation systems, as well as industrial, residential, and recreational areas. Engineers and planners working with urban stormwater systems, along with the owners of such systems, will find these updated standards to be a valuable resource.