Table 2: Risk evaluation after corrective actions using FMEA.
| Failure | Failure type | Corrective action | After corrective action | |||
| P | S | D | RPN | |||
| F1 | Operator does not check the vehicle mirrors, warning systems | Writing instructions in the vehicle and explaining the subject in the trainings | 3 | 5 | 3 | 45 |
| F2 | Lack of control of roof and Support in working environment | Repairing of the deteriorating places by shotcrete and roof bolt by controlling the roof and support | 3 | 7 | 3 | 63 |
| F3 | Lack of warning noise in reverse turning in vehicles | Audible warning signal during turning back | 3 | 6 | 4 | 72 |
| F4 | The operator does not lower the moving equipment of the machine to the ground when machine stops | Explaining loaded or empty bucket should be put on the ground in trainings. Adding warning system to the vehicles in case. | 3 | 6 | 3 | 54 |
| F5 | Failure in gallery slopes | Keeping the slope at a maximum of 8° in road designs | 4 | 6 | 4 | 96 |
| F6 | Not enough gallery widths | Gallery widths should be at least two vehicles wide and there should exist vehicle turning pockets at some points | 3 | 6 | 3 | 54 |
| F7 | Lack of warning signs and reflective signs on galleries | Warning signs must be installed and cleaned regularly | 4 | 4 | 3 | 48 |
| F8 | Lack of lighting | Provide more light to the work environment | 4 | 5 | 3 | 60 |
| F9 | Blind spot | Adding additional blind spot mirrors on vehicle mirrors. Blind spot mirrors should be installed in gallery corners | 5 | 4 | 5 | 100 |
| F10 | Dust | Dust should be suppressed to the ground and removed | 5 | 5 | 3 | 75 |
| F11 | Lack of maintenance | Periodic maintenance of the vehicles and keeping these records in written forms. | 4 | 5 | 5 | 100 |
| F12 | Rock particles | Loading of large parts into the truck in a controlled manner and recalculating the specific charge for smaller fragmentation | 4 | 5 | 3 | 60 |