###### Abstract  
In this study, the appropriate fairway width was designed through the maritime traffic safety evaluation model. By applying the concept of L-converted traffic, it was found that the current maritime traffic volume is 5 to 20 ships per hour in the sea area near Gun-san Port. High-density sections were identified through density analysis based on maritime traffic volume, which ranged from 5 to 10 km, and sections with an area of 10 km or more were also analyzed. Considering the general traffic flow and density, it is necessary to set a route width of 10 km or more in the target sea area, as well as to design a minimum fairway width that ensures safety for all types of ocean use. In this study, four traffic flows were analyzed through machine learning and a comprehensive environmental stress model was created for the traffic flows. The amount of safety change according to the increase in traffic volume was compared and reviewed for a fairway width of 1 km to 10 km, which can be generally formed according to the characteristics of the sea area. In the assessment, we found that when the fairway width was 1-4 km and the L-converted traffic volume was 15 or more, the ES \(\geq\) 750 value exceeded 10% of the total, thus creating a burden on the ship operators. In particular, it was found that the ES \(\geq\) 750 value was 20% at most when the L-converted traffic volume was 20 or more. In a comprehensive analysis, the ES \(>\) 750 was found to be less than 10% when the fairway width was 6 km or more in the sea area with one crossing passage at 5 to 20 ships per hour, which was the experimental condition of this study, and the ship operator's burden was determined to be insignificant. Based on these results, when designing routes between offshore wind farms that will be established in the future, we expect that it will be possible to design the minimum fairway width to ensure safety according to the traffic volume. m 2021 2022 28 January 2022  
Plan for Marine Space contains outlines for basic policy directions, the management and utilization of spatial information, R&D, and the international cooperation necessary for marine space management, and also aims to develop marine resources such as aggregates and minerals, fishing rights, marine energy, and marine ecosystem management [6; 7]. In such a situation, the Ministry of Oceans and Fisheries intends to establish an efficient maritime transportation system by creating a national integrated maritime transportation system, such as a road traffic and marine transportation network plan [8]. As mentioned above, most ports and navigation areas are designated by law or notice, so the waters near ports are guaranteed some degree of ship traffic safety. In addition, intermediate waters that are not announced under the law, such as intermediate port waters connecting ports and ports, coastal port areas where coastal ships pass through, and port areas are important and need to be designated and managed properly [9]. The construction of offshore wind farms has various effects on maritime traffic [10]. [PERSON] et al. [11] studied seafarers' perceptions of navigational safety risks near offshore wind farms and found that the respondents had high concerns about the five risk types. In addition, a plan for the coexistence of offshore wind farms and shipping was created by improving the navigation risk assessment process [12]. A study was also conducted on the numerical effect of ship collision on wind turbine structures [13]. There are many studies focusing on the design of fairways. Although some research on fairway design using autonomous navigation or AI has been carried out recently [14; 15], many studies on fairway design, including fairway width, have already been conducted. However, most studies have focused on the design of the fairway width for ports taking into account the approaching waters or bandwidth of fairways [16; 17; 18], and there are few studies or design standards on the appropriate fairway width for coastal fairways such as TSS in coastal waters [19].