Copenhagen consensus: Pit latrines or Container based toilets

The present study aims to estimate the costs and benefits of sanitation interventions to attain universal sanitation coverage in Haiti’s urban areas. Haiti has the lowest rate of access to improved sanitation infrastructure in the western hemisphere. Haiti has the lowest rate of access to improved sanitation infrastructure in the western hemisphere. Natural disasters such as the earthquake in 2010 further the consequences of this sanitation gap by contributing to the spread of waterborne diseases such as the cholera epidemic that followed the earthquake.
Two interventions were identified: 1) pit latrines connected to septic tanks and 2) a container based sanitation (CBS) service. These interventions are examined in this analysis for their potential to eliminate open defecation and provide universal access to an improved sanitation system that separates human excreta from human contact (UN, 2015). A cost-benefit analysis was carried out to measure economic value of the two interventions by comparing the expected benefits (reduction in diarrheal cases and deaths, education, health care, productivity) with the cost of the intervention (capital and operational expenses of each intervention system).

https://www.copenhagenconsensus.com/publication/haiti-priorise-urban-sanitation-sklar