Prioritisation of Investments in Sewage Projects: A Multicriteria Model

The sanitation sector faces significant challenges in achieving the universalisation goals established by the new 2020 regulatory framework. Prioritising these investments is essential due to the limited financial resources available, especially in sanitation projects. This article proposes a prioritisation model based on the Measuring Attractiveness by a Category-Based Evaluation Technique (MACBETH) method, aiming to order the execution of sewage projects by municipality when considering the perspectives of water and sewage concessionaires. The methodology involves brainstorming and Web-Delphi steps to identify criteria and subcriteria, as well as the use of the M-MACBETH software version 2.5.0 to define weights and value judgements. The research, conducted as a case study, employs a qualitative, quantitative, exploratory, and descriptive approach, emphasising interdisciplinary collaboration and model validation with experts. The conclusion highlights that the proposed model can be replicated in various contexts, enabling dealers to make more informed and effective decisions. Suggestions for future research include adapting the model to other areas of sanitation and integrating advanced technologies, such as artificial intelligence, for dynamic data analysis and management.