Table 2.
Risk assessment index system.
| Risk type | Risk implications | Evaluation parameters | Operation method |
|---|---|---|---|
| Transmission risk (TR) | The chance that the virus will spread from an infected individual to a susceptible individual | Poi Functional Mix (POI FM) | Raster turning points, spatial connections |
| Open Space Density (OSD) | Kernel density analysis, spatial connectivity | ||
| Tertiary Hospital Density (THD) | Kernel density analysis, raster turning points, and spatial connectivity | ||
| Shopping Mall Density (SMD) | Kernel density analysis, spatial connectivity | ||
| Road Network Density (RND) | |||
| Educational Facility Density (EFD) | |||
| Bank density (BD) | |||
| Public Transport Density (PTD) | Kernel density analysis, spatial connectivity | ||
| Average Housing Price (AHP) | Kerriging interpolation, spatial connectivity | ||
| Exposure risk (ER) | Risk of potentially coming into contact with the virus and becoming infected | Night-time Light Intensity (NLI) | Space connection |
| Floor Area Ration (FAR) | Create buffers, spatial connections | ||
| Susceptibility risk (SR) | An individual’s risk of contracting the COVID-19 virus | Poverty Level (PL) | Raster turning points, spatial connections |
| Proportion of Aged Population (POAP) | Empirical Bayesian kriging interpolation | ||
| Risk of scarcity of medical resources (RSMR) | Availability and adequacy of medical resources | Designated Hospital Distance (DHD) | Huff gravity model |
| Number of Beds Available in Designated Hospitals (NBADH) |