## 5 Conclusions and Future Work  
At present, renewable energy facilities and offshore wind power generation facilities are being built indiscriminately at sea, overlapping with the traffic routes customarily used by ships in domestic coastal waters. In the future, due to the expansion of marine development, the existing shipping lanes may be infringed upon, and this poses a threat to maritime traffic safety. Therefore, it is necessary to preserve safe fairways to ensure the safety of ships. While it is advantageous to secure a wide route from the viewpoint of the safety of the operator and the ship, this is not efficient. In this study, the sea area in front of Gun-san Port, which shows intersecting traffic in the north-south and east-west directions, was selected as the study area. Currently, when designing the width of passageways near ports and port approach channels, the \"Harbour Approach Channels Design Guidelines\" provided by the International Water Transportation Facility Association (PIANC) or the criteria for the explanation of the port and fishing port design standards in Korea are considered. The value of the design fairway width in the relevant standard ranges from 3.8 to 18.6 B, and if the width of the largest ship passing through the target sea area is about 50 m long, a minimum fairway width of about 1 km is required. Meanwhile, TSS is established to prevent marine accidents \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**ES Value**} & \multicolumn{6}{c}{\(ES_{A}\)} \\ \cline{2-7}  & **1 km** & **2 km** & **4 km** & **6 km** & **8 km** & **10 km** \\ \hline
0–500 & 40.4 & 49.6 & 70.8 & 86.8 & 90.1 & 90.2 \\
500–750 & 32.1 & 32.0 & 17.6 & 8.1 & 6.2 & 5.8 \\
750–900 & 12.3 & 7.2 & 4.0 & 1.4 & 1.2 & 1.0 \\
900–1000 & 15.1 & 11.2 & 7.6 & 3.7 & 2.5 & 2.9 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: The summary of \(ES_{A}\) in the case of L-converted traffic of 20. Figure 12: ES \(\geq\) 750 groups for each fairway width. and reduce the burden on ship operators along the domestic coast, and the width of the TSS is set to be about 5600-8500 m. In this way, when considering the channel approaching the port and the domestic coastal TSS, a general coastal fairway can be designed to be from 1 km to 10 km. In terms of maritime traffic safety, the wider the fairway is, the better the vessel's safety will be. However, it is necessary to design an appropriate fairway width because economic feasibility and efficiency must be considered along with safety. In this study, an appropriate fairway width was designed using the maritime traffic safety evaluation model. For this purpose, the traffic volume in the sea area in front of Gunsan Port, the target sea area, was analyzed. As the area characteristics and vessel navigation characteristics were so diverse, the concept of L-converted traffic was reflected, and it was found that the L-converted traffic volume was from a minimum of 5 to a maximum of 20 vessels per hour in the target sea area. High-density sections were identified through density analysis, and the high-density sections ranged from a minimum of 5 to 6 km to a maximum of 10 km or more. Considering the general flow and traffic density, it would be advantageous in terms of the economic efficiency of the vessels to use a fairway width of 10 km or more in the target sea area. However, it is necessary to design an appropriate fairway width that ensures the minimum safety requirements are met for marine use. In this study, based on the comprehensive environmental stress evaluation model, the change in safety according to the increase in traffic volume was compared and reviewed for a general route width of 1 km to 10 km. In the environmental stress model, in general, when the ES \(\geq\) 750 is more than 10% of the total, the operator's burden is determined to exist. As a result of evaluation based on these criteria, it was found that the ES \(\geq\) 750 value exceeded 10% of the total when the fairway width was 1-4 km and the L-converted traffic volume was 20 or more.