An analysis of ship escort and convoy operations in ice conditions

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An analysis of ship escort and convoy operations in ice conditions. / Goerlandt, Floris; Montewka, Jakub; Zhang, Weibin; Kujala, Pentti.

In: Safety Science, Vol. 95, 2017, p. 198–209.

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@article{79da11732fa942b1a39e375da7840f06,
title = "An analysis of ship escort and convoy operations in ice conditions",
abstract = "Winter navigation is a complex but common operation in the Northern Baltic Sea areas. In Finnish waters, the safety of the wintertime maritime transportation system is managed through the Finnish–Swedish winter navigation system. This system results in different operational modes of ship navigation, with vessels either navigating independently or under icebreaker assistance. A recent risk analysis indicates that during icebreaker assistance, convoys operations are among the most hazardous, with convoy collisions the most important risk events. While the accident likelihood per exposure time is rather low, accidents occur almost every winter. Even though these typically lead to less serious consequences, accidents leading to ship loss and oil pollution have occurred and may occur in the future. One aspect of ship convoy navigation in ice conditions is the distance kept between the icebreaker and the ships in the convoy, a form of the well-known ship domain concept. While operational experience naturally is a valuable source of information for decision making about the distance of navigation in convoys, systematic analyses are lacking. The aim of this paper is to investigate selected operational aspects of convoy navigation in ice conditions in the Finnish waters of the Gulf of Finland, based on data of the Automatic Identification System and sea ice hindcast data. Focus is on obtaining qualitative and quantitative knowledge concerning distances between vessels in escort and convoy operations and the respective transit speeds, conditional to ice conditions. Such empirical knowledge can support operational decision making, contributing to wintertime maritime safety.",
keywords = "Automatic Identification System, Finnish-Swedish winter navigation system, Maritime safety, Ship domain, Winter navigation operations",
author = "Floris Goerlandt and Jakub Montewka and Weibin Zhang and Pentti Kujala",
year = "2017",
doi = "10.1016/j.ssci.2016.01.004",
language = "English",
volume = "95",
pages = "198–209",
journal = "Safety Science",
issn = "0925-7535",
publisher = "Elsevier",

}

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TY - JOUR

T1 - An analysis of ship escort and convoy operations in ice conditions

AU - Goerlandt, Floris

AU - Montewka, Jakub

AU - Zhang, Weibin

AU - Kujala, Pentti

PY - 2017

Y1 - 2017

N2 - Winter navigation is a complex but common operation in the Northern Baltic Sea areas. In Finnish waters, the safety of the wintertime maritime transportation system is managed through the Finnish–Swedish winter navigation system. This system results in different operational modes of ship navigation, with vessels either navigating independently or under icebreaker assistance. A recent risk analysis indicates that during icebreaker assistance, convoys operations are among the most hazardous, with convoy collisions the most important risk events. While the accident likelihood per exposure time is rather low, accidents occur almost every winter. Even though these typically lead to less serious consequences, accidents leading to ship loss and oil pollution have occurred and may occur in the future. One aspect of ship convoy navigation in ice conditions is the distance kept between the icebreaker and the ships in the convoy, a form of the well-known ship domain concept. While operational experience naturally is a valuable source of information for decision making about the distance of navigation in convoys, systematic analyses are lacking. The aim of this paper is to investigate selected operational aspects of convoy navigation in ice conditions in the Finnish waters of the Gulf of Finland, based on data of the Automatic Identification System and sea ice hindcast data. Focus is on obtaining qualitative and quantitative knowledge concerning distances between vessels in escort and convoy operations and the respective transit speeds, conditional to ice conditions. Such empirical knowledge can support operational decision making, contributing to wintertime maritime safety.

AB - Winter navigation is a complex but common operation in the Northern Baltic Sea areas. In Finnish waters, the safety of the wintertime maritime transportation system is managed through the Finnish–Swedish winter navigation system. This system results in different operational modes of ship navigation, with vessels either navigating independently or under icebreaker assistance. A recent risk analysis indicates that during icebreaker assistance, convoys operations are among the most hazardous, with convoy collisions the most important risk events. While the accident likelihood per exposure time is rather low, accidents occur almost every winter. Even though these typically lead to less serious consequences, accidents leading to ship loss and oil pollution have occurred and may occur in the future. One aspect of ship convoy navigation in ice conditions is the distance kept between the icebreaker and the ships in the convoy, a form of the well-known ship domain concept. While operational experience naturally is a valuable source of information for decision making about the distance of navigation in convoys, systematic analyses are lacking. The aim of this paper is to investigate selected operational aspects of convoy navigation in ice conditions in the Finnish waters of the Gulf of Finland, based on data of the Automatic Identification System and sea ice hindcast data. Focus is on obtaining qualitative and quantitative knowledge concerning distances between vessels in escort and convoy operations and the respective transit speeds, conditional to ice conditions. Such empirical knowledge can support operational decision making, contributing to wintertime maritime safety.

KW - Automatic Identification System

KW - Finnish-Swedish winter navigation system

KW - Maritime safety

KW - Ship domain

KW - Winter navigation operations

UR - http://www.scopus.com/inward/record.url?scp=84962128778&partnerID=8YFLogxK

U2 - 10.1016/j.ssci.2016.01.004

DO - 10.1016/j.ssci.2016.01.004

M3 - Article

VL - 95

SP - 198

EP - 209

JO - Safety Science

JF - Safety Science

SN - 0925-7535

ER -

ID: 9328813