Tools for Reuse Master Planning
- Enrique Vadiveloo, Janeen Wietgrefe - Hazen and Sawyer
Two recently developed tools can simplify analysis, facilitate planning, and improve the efficiency and effectiveness of master planning.
Hazen and Sawyer has assisted municipalities nationwide with their master planning efforts, utilizing the latest technologies to continuously improve results. As part of a recent master planning effort, we created two tools for the ongoing evaluation of potential reuse projects.
These tools — the GIS Reuse Planning Tool and the Criteria Evaluation Model – originally developed for a county in the Southeastern United States – can be adapted to analyze potential projects around the globe. They also readily identify potential multi-jurisdictional reclaimed water projects with easy-to-use graphical interfaces and enable utilities to plan outside their silo.
Criteria Evaluation Model
The Criteria Evaluation Model performs a quantitative analysis on qualitative data to determine the return on investment of reuse projects and partnerships.
For this initial project, the team established 20 principal criteria (based on project benefits, implementation, reliability, general acceptance, and cost) for use in the evaluation tool. The methodology included establishing a weight for each criterion, which can be tailored to any utility performing the evaluation. Additionally, the team calculated a scaling factor to ensure the criteria are evaluated on similar scales.
Once the user enters scores for each criterion, the model tabulates a total for each project and summarizes the results. Higher scores are considered higher-ranked alternatives. Since the weighting of the criteria directly affects the scoring of the project, variations in weighting will provide multiple rankings that can reflect the perspectives and the priorities of any number of stakeholders.
Municipalities may also perform this ranking analysis to complete reuse feasibility studies for future permitting efforts. The flexibility of this criteria evaluation model provides a cost savings for future planning updates for all involved municipalities.
GIS Reuse Planning Tool
The GIS Reuse Planning Tool compiles existing reuse infrastructure, public works projects, and potential large-user customer identifi cation on GIS into a Google Earth platform that anyone, from GIS novice to GIS expert, can manipulate.
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Horizons showcases significant water, wastewater, reuse, and stormwater projects and innovations that help our clients to achieve their goals, and can help you achieve yours. Articles are written by top engineers and process group leaders, demonstrating and explaining the beneficial application of a variety of technologies and tools.