本文描述了与利用地理信息系统（GIS）技术构建水力模型相关的问题和方法，包括:GIS系统的历史；解决水力建模所需的GIS格式和数据错误类型；使用Reduce、Skeletonize和Trim（RST）转换器将GIS转换为与水力建模兼容的格式；以及GIS系统的实施对建模成本和水力体积的影响。 地理信息系统的发展导致了大型数据集的可用性，这些数据集可在水资源总体规划期间使用。为了有效利用这些数据，需要具备处理GIS信息以创建水力模型的能力。此外，利用极其详细的人口和用水信息进行准确的需求分配的能力也证明了大型模型的合理性。如本文所述，这些努力的结果是包含大量配电系统容量的模型，每根管道的成本显著降低，并且对客户的总体成本没有负面影响。 要实现这些好处，咨询公司需要在建模工作中利用GIS，以便在市场上具有竞争力。

This paper has described the issues and methodologies associated with utilization of Geographic Information Systems (GIS) technologies in construction of a hydraulic model including: history of GIS system; resolution of GIS format and types of data errors required for hydraulic modeling; conversion of the GIS into a format compatible with hydraulic modeling using the Reduce, Skeletonize, and Trim (RST) translator; and, impacts to the modeling cost and hydraulic volume which are realized from implementation of GIS systems. The evolution of GIS systems has led to the availability of large data sets which can be utilized during a water master plan. In order to efficiently and effectively use this data, the capability of processing GIS information to create hydraulic models is required. Additionally, large models can also now be justified by the ability to perform accurate demand allocation utilizing extremely detailed population and water use information. The results of these efforts, as detailed herein, are models which contain significantly greater amounts of the distribution system volume, have significantly lower cost per pipe, and show no adverse impact for overall cost to the customer. Realization of these benefits will require that consultants utilize GIS in their modeling efforts to be competitive in the marketplace.