| Title: | The Achilles' Heel of GIS-built Hydraulic Models (Maintaining/Updating a Model from GIS Data) |
| Authors: | Rajan Ray, IDModeling, Inc, Patrick Moore, P.E., IDModeling, Dave Harrington, IDModeling |
| Date/Time: | Wednesday, September 24 ~ 8:45 a.m. - 10:15 a.m. |
| Abstract: | Hydraulic modeling and GIS evolved around the same time. In essence, the two make use of the same concepts. Each offers a geographic representation of a network and attributes describing each element, along with tools to analyze connectivity and topology. GIS has the ability to manage, query, and present a large variety of datasets while the hydraulic model's focus is analysis of the results particular to a discrete set of data (water, sewer, stormwater infrastructure). The integration of GIS and modeling seem to make a perfect combination validated by the leading commercial software vendors developing integrated GIS-modeling platforms and direct imports to GIS data sources. (not sure where you were going with this sentence) Building models from GIS has become a standard practice in the industry; however, when you ask your neighbor utility or consulting firm on how they maintain their model or update the model from GIS – you will most likely receive different answers or uncertainty. This question is an important one as every model needs to be updated at one time or another in order to provide reliable results. Now, with more models being built from GIS data, there is an urgency to efficiently solve this problem of updating a model using GIS. This paper will discuss the varying issues involved in updating models from GIS data and some potential solutions, demonstrated through real-world case studies. |
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