# Occupational Risk Assessment of Wind Turbines in Bangladesh
## 6 Result and Discussions
### Risk Assessment and Risk Prioritizing
On the other hand, \"Unsuitable slope in the excavation roads\" (HIT4) and \"Industrial fluid under high pressure and excessive noise\" (HIT12) represent the lowest two positions of the 12 hazard sources. \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline \multirow{2}{*}{**HIT\(i\)**} & \multicolumn{3}{c}{**Consequence (C)**} & \multicolumn{3}{c}{**Exposure (E)**} & \multicolumn{3}{c}{**Probability (\(P\))**} \\ \cline{2-10}  & \(I\) & \(m\) & \(u\) & \(I\) & \(m\) & \(u\) & \(I\) & \(m\) & \(u\) \\ \hline HIT1 & 0.043 & 0.107 & 0.239 & 0.182 & 0.385 & 0.671 & 0.160 & 0.277 & 0.423 \\ HIT2 & 0.000 & 0.032 & 0.133 & 0.182 & 0.385 & 0.671 & 0.114 & 0.236 & 0.423 \\ HIT3 & 0.043 & 0.120 & 0.239 & 0.109 & 0.284 & 0.604 & 0.068 & 0.175 & 0.381 \\ HIT4 & 0.000 & 0.044 & 0.133 & 0.000 & 0.017 & 0.201 & 0.114 & 0.257 & 0.423 \\ HIT5 & 0.072 & 0.158 & 0.266 & 0.109 & 0.318 & 0.604 & 0.000 & 0.072 & 0.212 \\ HIT6 & 0.043 & 0.120 & 0.239 & 0.000 & 0.033 & 0.201 & 0.160 & 0.277 & 0.423 \\ HIT7 & 0.014 & 0.082 & 0.186 & 0.254 & 0.469 & 0.671 & 0.160 & 0.298 & 0.423 \\ HIT8 & 0.072 & 0.158 & 0.266 & 0.109 & 0.385 & 0.671 & 0.160 & 0.287 & 0.423 \\ HIT9 & 0.072 & 0.145 & 0.266 & 0.254 & 0.469 & 0.671 & 0.160 & 0.298 & 0.423 \\ HIT10 & 0.043 & 0.107 & 0.239 & 0.254 & 0.485 & 0.671 & 0.160 & 0.287 & 0.423 \\ HIT11 & 0.072 & 0.158 & 0.266 & 0.254 & 0.485 & 0.671 & 0.000 & 0.021 & 0.127 \\ HIT12 & 0.072 & 0.158 & 0.266 & 0.000 & 0.117 & 0.336 & 0.023 & 0.113 & 0.296 \\ FPIS \(A^{+}\) & 0.072 & 0.158 & 0.266 & 0.254 & 0.485 & 0.671 & 0.160 & 0.298 & 0.423 \\ FNIS \(A^{-}\) & 0 & 0.032 & 0.133 & 0 & 0.017 & 0.201 & 0 & 0.021 & 0.127 \\ \hline \hline \end{tabular}
\end{table} 
Table 18: Weighted normalized fuzzy decision matrix for the transportation stage. Similar analyses were performed for the construction, operation, and maintenance stages. Due to the space limitations, those results are not provided. Table 20 summarized the results of construction, operation, and maintenance stages. In the construction stage, \"Work in hot and humid condition\" (HIC14) has the highest ranking among these 20 hazard sources, followed by \"Accidents from hand equipment use\" (HIC20), \"Lack of hazard signs\" (HIC19), and \"No plans for emergency\" (HIC9). In addition, \"Using ladders to get to a height\" (HIC16) and \"Elevator going up and down\" (HIC15) are the least hazardous sources. For the operation and the maintenance stages, hazard sources are ranked as HIO12 > HIO2 > HIO15 > HIO6....... and HIM11 > HIM3 > HIM5 > HIM6........ as shown in Table 20.  
The fuzzy-TOPSIS multi-criteria decision analysis method can only prioritize the hazards' sources and can suggest preventive action. For this reason, each risk should be kept to an acceptable level [35]. Hazards are identified and prioritized in the transportation, construction, operation, and maintenance stages using the FTOPSIS method. All hazards are classified into seven risk levels, which constitute what is called compromised ranking [6]. The \(CC_{i}\) and compromised ranking of the hazards are shown in Figures 3-6.