Julius Leley

Population, provider, spatial and friction-surface representation choices alter modelled walking access to primary care in Uasin Gishu County, Kenya

Background. Gridded estimates of geographic access to primary care are increasingly used to identify underserved areas, but each estimate rests on several representation choices whose influence is rarely reported together. We quantified how population allocation, provider eligibi...

Checking open geospatial inputs against official statistics: census-anchored population and facility counts for modelled walking access in Uasin Gishu County, Kenya

Background. County-level accessibility analyses in Kenya usually rely on global gridded population and archived facility inventories, but they rarely check these inputs against the official statistics that county planners use. We compared open inputs with census, electoral and co...

Decision rules, thresholds and input uncertainty in robust ward prioritisation for healthcare needs assessment in Uasin Gishu County, Kenya

Background. Accessibility maps are often turned into shortlists of areas for follow-up, but the shortlist depends on the decision rule, the threshold, the number of areas selected and the uncertainty considered. We examined how these choices shape a six-ward needs-assessment shor...