A fault tree-based approach for aviation risk analysis considering mental workload overload

Many lives and aircrafts have been lost due to human errors associated with mental workload overload (MWLOL). Human are successfully considered in existing Fault Tree Analysis (FTA) methods. However, MWLOL is through Performance Shaping Factors indirectly its information hidden FT construction, which not conducive analyze the root causes of risks. To overcome this difficulty, we develop a risk analysis method where Multiple Resources Model (MRM) incorporated into FTA MRM analyzes by estimating resources used during performing concurrent tasks, probably including abnormal situation handling tasks introduced basic events FT. Such may cause then trigger corresponding error events. A gate proposed describe explicitly add these new relationships traditional This extends previous methods provides more in-depth analysis. An accident, helicopter crash Maryland, analyzed method.