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Trans. Planning Journal
| Title | Risk Assessment Model on Flight-Safety Management |
|---|---|
| Author | Wen-Kuei Lee, Yu-Hern Chang |
| Summary | An efficient flight-safety risk assessment model using the lowest cost can reduce flight accidents and the loss. The model includes two parts, risk measurement and risk analysis. If the flight-safety risk factors can be strictly monitored and the appropriate measures can be adopted while failure occurred, flight accidents will be greatly decreased. Due to the serious defect of using the RPN, which was calculated from the product of the scores of measurement factors, the traditional FMECA principle is not applicable to the risk analysis of aviation industry requiring much higher safety concern. Thus, we developed a model applying the coordinate combination method and the Euclidean distance formula to combine the scores of measurement factors to measure the risks. Also, we modified the ALARP approach to establish the risk analysis model. Then the operating of the risk analysis diagram (RAD) was interpreted. That is, an elastic monitoring/controlling mechanism would be established to timely monitor the status of each risk factor. Hence, we first obtained the scores of each endogenous measurement factors of each risk factor screened from the expert’s questionnaire survey. Next, we employed the statistical k-σ technique to draw the RAD for each risk factor. A practical study for technological risk factors of flight-safety was presented in this paper. By operating this model, the risk manager can appropriately adjust the k parameter to set up the upper-bound threshold of level of risk to efficiently monitor the risk level and adopt the corresponding measures of risk treatment to find out the extraordinary hazards as early as possible. In this study, the quantitative risk analysis method was used to measure and cope with the risks. This is different from the conventional manner of the qualitative risk analysis. So, the contributions of this study may provide help for the related departments in civil aviation to manage the risks of flight-safety. |
| Vol. | 34 |
| No. | 1 |
| Page | 145 |
| Year | 2005 |
| Month | 3 |
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