The Citywide Inclusive Sanitation Services Assessment and Planning (CWIS SAP) tool helps decision-makers compare the outcomes of different sanitation interventions or investments. The tool analyzes and illustrates how each proposed intervention is likely to affect the equity, financial sustainability and safety of sanitation services in an urban area.
An excreta flow diagram (also often described as shit flow diagram, SFD) is a tool to readily understand and communicate how excreta physically flows through a city or town.
This free-to-use, open-database online tool allows planners to compare the capital and running costs of different types of sanitation solutions along the whole sanitation service chain at the component, system, and city levels – for both sewered and onsite interventions.