Table 8 Comparative performance of warning sign systems before and after Optimization.
From: Visual communication design in laboratory safety effectiveness and optimization of warning signs
Performance Indicator | Pre-implementation | Post-implementation | Improvement (%) | Statistical Significance |
|---|---|---|---|---|
Attention Capture Time (ms) | 487.3 ± 42.1 | 312.6 ± 29.8 | 35.9 | p < 0.001 |
Visual Prominence (m) | 4.3 ± 0.7 | 7.8 ± 0.9 | 81.4 | p < 0.001 |
Symbol Recognition Accuracy (%) | 72.4 ± 8.6 | 93.1 ± 4.7 | 28.6 | p < 0.001 |
Message Understanding (%) | 68.4 ± 7.3 | 89.2 ± 5.2 | 30.4 | p < 0.001 |
Hazard Perception Accuracy (%) | 63.5 ± 9.2 | 90.4 ± 6.3 | 42.3 | p < 0.001 |
Short-term Recall (%) | 65.7 ± 9.8 | 87.6 ± 6.5 | 33.3 | p < 0.001 |
Compliance Rate (%) | 61.7 ± 11.2 | 85.0 ± 7.4 | 37.8 | p < 0.001 |
Response Time (s) | 4.3 ± 1.2 | 2.1 ± 0.6 | 51.2 | p < 0.001 |
