| Sign | Pre-test n (%) | Post-test n (%) |
| Exit | 27 (81.8) | 32 (97.0) |
| Landslide | 26 (78.8) | 32 (97.0) |
| Emergency shower | 20 (60.6) | 27 (81.8) |
| Emergency stop bottom | 13 (39.3) | 15 (45.5) |
| Emergency telephone | 26 (78.8) | 29 (87.9) |
| Automated External Defibrillator (AED) | 27 (81.8) | 32 (97.0) |
| Biohazard | 15 (45.5) | 25 (75.8) |