Research Article
A Real-Time Location-Based Services System Using WiFi Fingerprinting Algorithm for Safety Risk Assessment of Workers in Tunnels
Table 2
Risk assessment and regulation.
| Score | Action |
| >320 | Dangerous, all on-site operations need to be stopped | 160–320 | Very dangerous, need change immediately | 70–160 | Dangerous, need change | 20–70 | Possible dangerous, pay attention | <20 | A bit dangerous, it is acceptable |
|
|