Identifying Water Crossings in Rural Liberia and Rwanda Using Remote and Field-Based Methods

Safe and consistent access to essential services is critical for poverty alleviation in rural communities, but even significant physical transportation barriers, such as pedestrian water crossings, are poorly mapped, leaving the scope of need trailbridges largely unknown. Field-based efforts catalogue those barriers can be effective costly time-consuming. The study described here details field-based methods identifying crossings Liberia Rwanda, well remote methods, evaluate their effectiveness potential application assessing future infrastructure networks. work highlights challenges, addresses components method that limit scalability on a global level, outlines way forward endeavors identify crossings. Overall, most applied this identified 16 percent using same area interest Liberia, 72 Rwanda. remains bridge site identification, though resources required an field underscore greater investment methods. Additionally, neither alone yields results fully encapsulate need, authors recommend blended approach incorporates more sophisticated with streamlined leverage existing local knowledge expertise.