A study on the timing on warning from VTS to avoid ship collisions

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K01243
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Social systems engineering/Safety system
• Research Institution: Japan Coast Guard Academy (Center for Research in International Marine Policy)
• Principal Investigator: NISHIMURA TOMOHISA 海上保安大学校(国際海洋政策研究センター), 国際海洋政策研究センター, 教授 (30559240)
• Co-Investigator(Kenkyū-buntansha): 中山 喜之 海上保安大学校(国際海洋政策研究センター), 国際海洋政策研究センター, 准教授 (70747013)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 船舶交通 / 運用管制官 / 情報提供 / 警告 / 教育訓練 / 衝突回避 / マーチス / VTS

Outline of Final Research Achievements

A guideline on the deadline for warning from VTS Operator to make a vessel avoid an abnormal approaching situation with another vessel is proposed in this study. The deadline for warning means the timing that if a VTSO gives a warning to a vessel by this timing at the latest, she can avoid the abnormal approaching situation. In this study, the deadline for warning is estimated by simulation on collision avoidance maneuver and by observation on OOW's and VTSOs’ behavior (OOW:Officer of Watch). In case of the give-way vessel of 100 meters in length, the estimated deadline is approximately 3 minutes. In case of the give-way vessel of 160 meters in length, the estimated deadline is approximately 4 minutes. But if the velocity of the give-way vessel is 10.5 knots or less and if the crossing angle between the give-way vessel and the stand-on vessel is 60 degrees or less, VTSO should give a warning approximately 1 minute earlier than the estimated deadlines.

Free Research Field

船舶海難分析