Analysis of model simplification methodologies for integrated urban water system models - Optimizing model efficiency without jeopardizing accuracy

城市污水和雨水系统评估和建模的重要性和优势 (UWS)全球系统作为一个整体得到普遍承认，但在实践中往往不适用。建模 这些系统作为综合UWS模型（IUWSM），引入了开发和投资解决方案的灵活性 最大限度地减少风险，并在可承受的水平上对整个系统产生最大的积极影响， 投资 本计画提出研究发展IUWSM的方法论改进，着眼于 涉及将水力模型简化为概念代理模型。可能创造 在最近的多项研究中证明了具有合理代表性的概念替代模型;然而， 目前的方法既没有被广泛使用，也没有得到很好的建立。 Stantec在开发详细和简化的水力模型方面拥有丰富的经验， 拉瓦尔大学的modelEAU研究团队，其专业知识是建模方法优化，将 进行为期6个月的分析，以进一步开发和优化与建筑有关的方法之一 （IUWSM），重点是简化的水力代理模型的发展。的一些挑战 在此分析过程中要处理的是寻找方法的适应性，以轻松评估不同的 方案和适应广泛的输入，以及代理模型可以告知和 与详细模型集成。 注重提高一般方法的稳健性、灵活性和效率， 代表IUWSM中的液压系统将在提高精度、减少 模拟计算时间，并推进其用于有效测试各种现实生活中的场景。这 研究将使监管机构、公用事业公司和市政当局更容易确定和投资于具有成本效益的 解决我国复杂的水资源问题。

The importance and advantages of evaluating and modeling Urban Wastewater and Stormwater Systems (UWS) as integrated, global systems are commonly recognized but not often applied in practice. Modeling these systems as Integrated UWS models (IUWSM) introduces the flexibility to develop and invest in solutions that minimize risk as well as provide greatest positive impact to the overall system at affordable levels of investment. This project proposes to research methodology improvements to developing IUWSM, looking at the step that involves the simplification of hydraulic models into conceptual surrogate models. The potential to create reasonably representative conceptual surrogate models was proven in multiple recent studies; however the current methods are neither widely used nor well-established. Stantec, having vast experience in developing detailed and simplified hydraulic models, coupled with Université Laval's modelEAU research team, whose expertise are in modeling approach optimization, will work on a 6 month analysis to further develop and optimize one of the methodologies involved with building (IUWSM), focusing on the development of the simplified hydraulic surrogate models. Some of the challenges to be dealt with during this analysis are looking at the adaptability of the methods to easily assess different scenarios and accommodate a wide range of inputs, and the ease in which the surrogate models can inform and integrate back with detailed models. A focus on improving the robustness, flexibility and efficiency of the general approach to conceptually represent the hydraulics in IUWSM will result in the largest benefit in terms of increasing accuracy, reducing simulation calculation times, and advancing their use to test a variety of real-life scenarios efficiently. This research will make it easier for regulators, utilities and municipalities to identify and invest in cost-effective solutions for our country's complex water resource challenges.