Impact factors | Frequency | Impact factors | Frequency | Impact factors | Frequency |
Feel unwell | 0.1273 | Teamwork | 0.0202 | Cockpit temperature | 0.0015 |
Physical state | 0.0079 | Teamwork | 0.0015 | Cockpit humidity | 0.0014 |
Illness | 0.0318 | Operating specification | 0.0099 | Illumination | 0.0028 |
Health | 0.0015 | Operating system | 0.0128 | Hue | 0.0014 |
Fatigued | 0.0012 | Rules and regulations | 0.0124 | Noise | 0.0014 |
Dispersion of attention | 0.0012 | Reward and punishment system | 0.0028 | Vibration | 0.0012 |
Distract | 0.0020 | Management system | 0.0076 | Crossing condition | 0.0014 |
Inattention | 0.0021 | Job training | 0.0318 | Construction site | 0.0049 |
Emotional stability | 0.0014 | Safety education | 0.0341 | Site obstacle | 0.0330 |
Testiness | 0.0021 | Job management | 0.0012 | Weather | 0.0034 |
Safety awareness | 0.0069 | Operating procedure | 0.0180 | Digital interface display | 0.0049 |
Professional skill | 0.0861 | Technical specification | 0.0036 | Digital interface information delivery | 0.0055 |
Operational skill | 0.0359 | Regulation | 0.0031 | Information transmission | 0.0082 |
Defense | 0.0038 | Long working hours | 0.1220 | Safety sign | 0.0440 |
Safety belt | 0.0029 | The work schedule is not reasonable | 0.0012 | Display and control page layout | 0.0070 |
Safety helmet hat | 0.0015 | Cable worker communication | 0.0021 | Display and control operation mode | 0.0015 |
Safety measure | 0.0018 | Signalman | 0.0096 | Display and control device density | 0.0073 |
Protective device | 0.0015 | Untimely signal | 0.0055 | Drive-by-wire reliability | 0.0144 |
Working hours | 0.0021 | Improper command | 0.0250 | Space comfort | 0.0063 |
Staffing | 0.0023 | Emergency drill | 0.0507 | Cockpit seat comfort | 0.0011 |
Distribution of responsibilities | 0.0423 | Emergency plan | 0.0032 | Communication equipment | 0.0064 |
Time pressure | 0.0091 | Preventive measures | 0.0061 | System intelligence | 0.0076 |
Time shortage | 0.0334 | Working atmosphere | 0.0954 | System reliability | 0.0070 |