Table 2.
Preliminary risk assessment index system.
| First-Level Indicators | Second-Level Indicators | Explanations |
|---|---|---|
| Environmental factors (A1) | Architectural layout (B11) | These indicators reflect the relationship between various environmental factors and safety risks in UPLS, and reflect the impact of random factors on safety risk assessment. |
| Weather (B12) | ||
| External traffic (B13) | ||
| Internal traffic (B14) | ||
| Public health (B15) | ||
| Social stability (B16) | ||
| Human factors (A2) | Crowd characteristics (B21) | These indicators reflect the relationship between human factors and risk level in UPLS, and reflect the impact of human factors on risk assessment level of UPLS. |
| Negligence behavior (B22) | ||
| Macroscopic fundamental diagram (B23) | ||
| Age and gender (B24) | ||
| Safety awareness (B25) | ||
| Physical fitness (B26) | ||
| Panic (B27) | ||
| Trip purpose (B28) | ||
| Infrastructure factors (A3) | Exit (B31) | These indicators reflect the relationship between infrastructure factors and risk level of UPLS, and reflect the impact of static factors on risk assessment level of UPLS. |
| Guide sign (B32) | ||
| Power system (B33) | ||
| Lighting system (B34) | ||
| Fume exhaust system (B35) | ||
| Drainage system (B36) | ||
| Alarm system (B37) | ||
| Firefighting system (B38) | ||
| Broadcasting and monitoring system (B39) | ||
| Management factors (A4) | Personnel training (B41) | These indicators reflect the relationship between the management mechanism of public places and risk level of public places, and reflect the impact of dynamic factors on risk assessment level of UPLS. |
| Public health management (B42) | ||
| Security risk management (B43) | ||
| Event organization and management (B44) | ||
| Fire safety management (B45) | ||
| Emergency evacuation management (B46) | ||
| Store management (B47) | ||
| Infrastructure management (B48) |