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Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
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Rural Sanitation Sustainability Dynamics: Gaining Insight through Participatory and Simulation Modeling.

Martha M McAlister1, Patricia Namakula2, Jonathan Annis2

  • 1Department of Civil & Environmental Engineering, University of South Florida, 4202 E Fowler Avenue, Tampa, Florida 33620, United States.

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|December 19, 2023
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Summary
This summary is machine-generated.

Achieving sustainable sanitation requires systemic changes, not just incremental improvements. Interventions targeting households' perceived value of sanitation show promise for improving outcomes in sub-Saharan Africa.

Keywords:
SDGsWASHgroup model buildinglatrinemixed methodssub-Saharan Africasystem dynamicssystems thinking

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Area of Science:

  • Environmental Health
  • Public Health
  • Systems Science

Background:

  • Improved sanitation is crucial for human health and Sustainable Development Goal Six.
  • Many regions, particularly sub-Saharan Africa, face significant challenges in meeting sanitation targets.
  • Sanitation sustainability is a complex environmental health issue requiring innovative approaches.

Purpose of the Study:

  • To apply systems thinking to understand sanitation sustainability in Uganda.
  • To identify key factors influencing sanitation outcomes in rural districts.
  • To explore potential systemic changes for improving sanitation.

Main Methods:

  • Engaged 37 sanitation actors across three rural Ugandan districts through interviews and workshops.
  • Developed a system dynamics model based on participant input and expert knowledge.
  • Parametrized and calibrated the model using existing data and project-specific data from Uganda.

Main Results:

  • Simulations indicated a "slippage" from improved sanitation in all study districts, mirroring real-world intervention outcomes.
  • Systemic changes, altering rules and relationships within the sanitation system, appear necessary.
  • Interventions focused on enhancing households' perceived value of sanitation demonstrated positive simulation results.

Conclusions:

  • Sanitation systems should be conceptualized considering reinforcing and balancing feedback loops.
  • Participatory and simulation modeling can build confidence in understanding complex sanitation systems.
  • Designing and testing multiple intervention scenarios through simulation is recommended for policy and intervention development.