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ISSN 2083-6473
ISSN 2083-6481 (electronic version)
 

 

 

Editor-in-Chief

Associate Editor
Prof. Tomasz Neumann
 

Published by
TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
81-345 Gdynia, POLAND
www http://www.transnav.eu
e-mail transnav@umg.edu.pl
Estimation of Changes in Marine Traffic Flow Due to Installation of Virtual Buoys Based on the OZT Method
ABSTRACT: In this study, changes in maritime traffic flow due to the installation of virtual buoys were analysed from the perspective of collision, based on the obstacle zone by target (OZT) method. The existence of an OZT within ±2° in the bow direction is considered to be dangerous; all the OZTs that a vessel encountered at the time when this orientation prevailed were subjected to analysis. For the calculation of the OZT model, an SD3 model was used. The estimated OZT was used to calculate the OZT density, and the positions of the ships that were encountering the OZT were used for the analysis. It was found that the OZT density at the locations where collisions had occurred in the past was approximately 0.01 [times/km2]. After the installation of virtual buoys, most places around there were reduced to around approximately 0.005 [times/km2]. The results imply that the installation of virtual buoys has reduced the risk of collisions. In contrast, the OZT density in the southern region of Buoy 1 increased from approximately 0.005 [times/km2] to approximately 0.01 [times/km2], suggesting that a more detailed analysis of this area is required.
REFERENCES
Fukuda, G., Shoji, R.: Estimating Co - doi:10.9749/jin.135.129
Fukuda, G., Takashima, K.: Analyzing the m - doi:10.1109/IAIN.2015.7352245
Japan Coast Guard: Centralizing Marine Traffic Control in Tokyo Bay, https://www.kaiho.mlit.go.jp/e/Centralizing%20Marine%20Traffic%20Control%20in%20Tokyo%20Bay.html, last accessed 2021/03/11.
Japan Coast Guard: New Shipping Route Designation at Tokyo Bay Entrance, https://www.kaiho.mlit.go.jp/03kanku/ichigenka/pdf/kokuji_e.pdf, last accessed 2021/03/11.
Japan Transport Safety Board: Ship Accident Investigation Report, https://www.mlit.go.jp/jtsb/ship/rep-acci/2016/MA2016-5-1_2014tk0009.pdf, last accessed 2021/03/12.
Japan Transport Safety Board: Ship Accident Investigation Report, https://www.mlit.go.jp/jtsb/ship/rep-acci/2015/MA2015-9-15_2014yh0087.pdf, last accessed 2021/03/12.
Marine Accident Inquiry and Safety Investigation Association: Cargo ship Kasho Maru cargo ship Blue Peak collision incident, https://nippon.zaidan.info/seikabutsu/2002/00888/contents/0662.htm, last accessed 2021/03/12.
Marine Accident Inquiry and Safety Investigation Association: Cargo ship Tsugaru Maru cargo ship Eastern Challenger collision incident, https://maia.or.jp/wp-content/uploads/pdf/accidents/㉜heisei%20zenki.pdf, last accessed 2021/03/12.
Marine Accident Inquiry and Safety Investigation Association: Collision of cargo ship Yongchai with cargo ship Toyo Maru No. 12, https://nippon.zaidan.info/seikabutsu/2002/00889/contents/0032.htm, last accessed 2021/03/12.
Nishizaki, C., Kayano, J., Shoji, R - doi:10.9749/jin.139.48
Tokyo Wan Association for Marine Safety: Study of marine traffic control measures in the waters at the mouth of Tokyo Bay in 2017, http://www.toukaibou.or.jp/img/file18.pdf, last accessed 2021/03/11.
Citation note:
Fukuda G., Tamaru H., Shoji R.: Estimation of Changes in Marine Traffic Flow Due to Installation of Virtual Buoys Based on the OZT Method. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 15, No. 2, doi:10.12716/1001.15.02.24, pp. 445-453, 2021

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