Journal of Navigation and Port Research (한국항해항만학회지)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Study on Estimating Economic Risk Cost of Aids to Navigation Accident in Busan Port, Korea using Contingent Valuation Method

조건부가치측정법을 이용한 부산항 항로표지사고에 대한 항행 위험비용의 추정에 관한 연구

  • Received : 2018.12.03
  • Accepted : 2018.12.19
  • Published : 2018.12.31
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Abstract

Aids to Navigation (AtoN) is one of the marine traffic safety facilities that promotes the safety of maritime traffic and enhance ship's operational efficiency. However, functional failure of AtoN due to ship's collision or bad weather conditions leads to inconvenience or navigational risk to various users such as the ship operators. For insstance, the largest container port in Korea, Busan Port has experienced a total of 400 AtoN accidents in the past 12 years (2006-2017).Therefore, an average of 20.6 days of recovery time is required, which increases the maritime safety anxiety for AtoN users. is the objective of this study was to present the quantitative support of the users for the prevention of AtoN accidents and the improvement of the feasibility of implementing more efficient management in Korea. A survey was conducted on the users of Busan port areas to investigate general perception of AtoN in general and the accidents that have happened, and to estimate the economic value of navigational risk reduction by implementing effective AtoN management measure. Using the representative non-market valuation method for environmental or public goods known as contingent valuation method (CVM), the economic value granted to users for the AtoN services in Busan port was estimated to at least 16 billion won. Therefore, these finding could be used by AtoN managers and/or policy makers as a valuable data to identify the users' need of various AtoN services including Busan Port and to establish and implement more efficient management plan.

항로표지는 해상교통의 안전을 도모하고 선박운항 능률 향상을 위하여 설치된 해양교통안전시설 중 하나이다. 그러나 선박충돌 또는 기상악화 등의 원인으로 발생하는 항로표지의 사고로 인하여 제 기능을 상실 하였을 경우, 선박운항자를 비롯한 여러 이용자에게 이용불편 또는 항행위험을 증가시키고 있다. 특히 우리나라 최대 컨테이너항만인 부산항은 최근 12년(2006년~2017)동안 총400건의 항로표지 사고가 발생하였으며, 이로 인하여 평균 20.6일의 복구기간이 소요됨에 따라 항로표지 이용자들에게 해양안전 불안을 가중시키고 있다. 따라서 연구의 목적은 우리나라 항로표지 사고예방과 효율적인 관리방안을 적극적으로 추진하기 위한 이용자들의 정량적 지지도를 제시하고자 한다. 이를 위해 부산항 해역이용자들을 대상으로 항로표지 및 항로표지 사고에 대한 인식조사를 실시하고, 효율적 항로표지 관리방안의 추진을 통한 항행위험 감소에 대한 경제적 가치를 추정하였다. 연구의 결과, 비시장재화인 환경재나 공공재의 대표적인 가치추정법인 조건부가치추정법을 이용하여 추정된 부산항 항로표지 서비스에 대하여 이용자들이 부여한 경제적 가치는 최소 약 160억원으로 나타났다. 따라서 이러한 연구결과는, 항로표지 관리자 및 정책입안자들에게 부산항을 비롯한 우리나라 항로표지 서비스에 대한 다양한 이용자의 요구사항을 확인하고, 이에 대응하는 보다 효율적인 관리방안의 수립과 추진에 유용한 자료로 활용될 수 있을 것이다.

Keywords

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Fig. 1 Number of AtoN accident(2006-2017)

Table 1 Accidents by AtoN categories(2006-2017)

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Table 2 Causes of AtoN accidents in bsan port (2006-2017)

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Table 3 Consequences and damage cost of AtoN accidents(2006-2017)

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Table 4 Sample demographic information

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Table 5 Public perception of Aids to Navigation(AtoN)

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Table 6 Public perception of Aids to Navigation Accidents in Busan Port

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Table 7 Referendum responses by offered bids (won/year)

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Table 8 WTP estimation with lower bound turnbull nonparametric estimator for new AtoN program in busan port

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