Monitoring and Evaluation of Vegetated Stormwater Infrastructure

洪水风险是对许多城市居民的重大威胁。植被雨水基础设施（可持续排水系统或SuDS）可以提供对未来气候和土地利用变化具有弹性的雨水管理。然而，在实践中，定量证据证实的水力性能的SuDS是有限的。迫切需要此类证据来为政府政策制定和水行业投资提供信息，并支持用于规划和设计排水基础设施的建模工具的开发和验证。塞文特伦特水务公司雄心勃勃的曼斯菲尔德SuDS改造计划为收集这些系统在实践中的表现提供了一个独特的机会。该项目将主要利用塞文特伦特水务公司已计划收集的现场数据（下水道/SuDS流量和空隙空间水平数据）。此外，我们将集中仪表至少一个单独的设备（例如，一个生物滞留细胞，或'雨花园'），以允许详细的数据收集和建模工具的审查，与目标，建议改进的SuDS建模和设计。除自然降雨事件外，我们还将人工降雨/流入量输入到该设备中，以提供与极端设计降雨事件对应的测试用例数据。

Flood risk is a significant threat to many residents of urban areas. Vegetated stormwater infrastructure (Sustainable Drainage Systems or SuDS) can provide stormwater management that is resilient to future climate and land use changes. However, quantitative evidence confirming the hydraulic performance of SuDS in practice is limited. Such evidence is urgently needed to inform Government policy making and water industry investment, and to support the development and validation of modelling tools used to plan and design drainage infrastructure. Severn Trent Water's ambitious programme for town wide SuDS retrofitting in Mansfield provides a unique opportunity to collect key evidence on how these systems perform in practice. The project will primarily utilise field data (in-sewer/SuDS flow and void space level data) that is already planned to be collected by Severn Trent Water. In addition, we will intensively instrument at least one individual device (e.g., a bioretention cell, or 'rain garden') to permit detailed data collection and scrutiny of the modelling tools, with the goal to recommend improvements to SuDS modelling and design. In addition to natural rainfall events, we will engineer artificial rainfall/inflow inputs into this device to provide test-case data corresponding to extreme design rainfall events.