Risk Analysis of VTS operators for Small Vessels Using Collision Risk Assessment Model

충돌위험도 평가 모델을 활용한 소형선박에 대한 선박교통관제사의 위험도 분석

Lee, Jin-Suk;Kim, Joo-Sung

  • Received : 2019.07.04
  • Accepted : 2019.07.30
  • Published : 2019.08.31


The objective of this study was to analyze the risk of collision accidents to the VTSOs (Vessel Traffic Service Operators) as small ferries and fishing boats are expanded for monitoring targets. The VTSOs was surveyed, the scale of the small vessels defined and the course of general cargo vessels and small vessels along the Busan VTS area investigated for three days. From calculating the risk with CoRI, patterns of increased or decreased risk due to course deviation were similar, and there was no significant difference between the maximum values and the minimum values. In addition, most VTSOs responded that the minimum time required was approximately three minutes to safely instruct in encounter situation, however, the collision risk with a small vessel is very rapidly changing within the three minutes, which is likely to increase the workload and decrease the concentration of the VTSOs. The objective of this study was to investigate the effect on VTSOs with respect to the expansion of small vessels as collision risk, it is expected that it will contribute to the establishment of a suitable scale for the target vessels for VTS through the analysis of each index of the CoRI model and various case studies.


VTS(Vessel Traffic Service);Small Vessel;CoRI;Encounter Situation;Collision Risk