Comment by ljegou

The Malaria Atlas Project worked on a global hospital accessibility dataset, base on OSM roads + other data :

Travel Time to Nearest Healthcare Facility with Access to Motorized Transport https://data.malariaatlas.org/maps?layers=Malaria:202206_Glo...

Paper : https://researchonline.lshtm.ac.uk/id/eprint/4657237/1/weiss...