Hospital-system functionality quantification based on supply–demand relationship under earthquake

The hospital system is one of the most critical systems in city and plays an irreplaceable role whole process earthquake disasters. This paper presents a method that considers medical supply–demand relationship to quantify functionality functional loss under conditions, which different from current quantitative only internal factors system. provides “finest granularity” for division evaluation units based on GIS overlay. Secondly, considering metric, substitution capacity resources (SCMR), constructed. Then, we propose quantification SCMR by combining spatial network analysis methods. Finally, eastern China considered as illustrative example. impact changes supply demand at times day analyzed. results show can functionality. causes decline functionality, while aggregation positively affect use proposed reflect balance before after earthquake. It help decision-maker develop scientific post-earthquake emergency plans enhance resilience.