![Preview Image SFD](https://www.susana.org/_resources/images/720/3-3848-7-1588593481.png)
Estimating Safely Managed Sanitation in Urban Areas - Lessons Learned From a Global Implementation of Excreta-Flow Diagrams
This paper describes a methodology for rapid assessment of sanitation in cities including a graphical representation (a shit-flow diagram or SFD) and reports on findings from implementation in 39 …