Collision risk assessment in coastal waters
The amount of international shipped cargo grows steadily, and seas are exploited for seabed mining and energy production more than ever. As a result, there is an increase in traffic density and decrease in free navigational space, potentially causing a higher incidence of dangerous navigation situat...
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fttudelft:oai:tudelft.nl:uuid:30c436c1-7727-4068-9315-383c040ba6a0 2023-07-30T04:07:25+02:00 Collision risk assessment in coastal waters Grossmann, Martin (author) Kana, Austin (graduation committee) Hopman, Hans (mentor) Hassel, Martin (mentor) Delft University of Technology (degree granting institution) 2019-10-23 http://resolver.tudelft.nl/uuid:30c436c1-7727-4068-9315-383c040ba6a0 en eng http://resolver.tudelft.nl/uuid:30c436c1-7727-4068-9315-383c040ba6a0 © 2019 Martin Grossmann risk assessment Collision detection Automatic Identification System coastal areas near-collision master thesis 2019 fttudelft 2023-07-08T20:31:18Z The amount of international shipped cargo grows steadily, and seas are exploited for seabed mining and energy production more than ever. As a result, there is an increase in traffic density and decrease in free navigational space, potentially causing a higher incidence of dangerous navigation situations that may lead to ship collisions. This thesis establishes a hypothesis that there are coastal areas where the risk of collision is unexplored and abnormally high and has not been analysed yet. Therefore, the thesis aims to develop a method suitable to assess the risk of collision in coastal waters. A thesis literature review primarily focuses on the current collision risk assessment methods, circumstances of collisions, and sources of navigational information for coastal waters. The literature review concludes that a promising and novel approach is to detect near-collision situations based on the data from the Automatic Identification System (AIS). The near-collision exists when a ship's safety domain is violated and, simultaneously, the ship performed a last-moment evasive manoeuvre, which is identified by an abnormal ship's rate of turn. Building on a previous basic version of the near-collision detection method and AIS data provided by Safetec Nordic AS, this thesis develops a collision risk assessing tool that significantly outperforms the original method. The performance of the designed method was evaluated using AIS data from the Vestfjorden area in Norwegian coast during 2013-2015. The case study shows that this approach effectively detects near-collision situations but identifies a considerable number of new false near-collisions. The details and spatial distribution of detected near-collisions provide valuable insight into navigational areas vulnerable to collisions, collision circumstances, and frequency of collisions. Master Thesis Vestfjorden Delft University of Technology: Institutional Repository |
institution |
Open Polar |
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Delft University of Technology: Institutional Repository |
op_collection_id |
fttudelft |
language |
English |
topic |
risk assessment Collision detection Automatic Identification System coastal areas near-collision |
spellingShingle |
risk assessment Collision detection Automatic Identification System coastal areas near-collision Grossmann, Martin (author) Collision risk assessment in coastal waters |
topic_facet |
risk assessment Collision detection Automatic Identification System coastal areas near-collision |
description |
The amount of international shipped cargo grows steadily, and seas are exploited for seabed mining and energy production more than ever. As a result, there is an increase in traffic density and decrease in free navigational space, potentially causing a higher incidence of dangerous navigation situations that may lead to ship collisions. This thesis establishes a hypothesis that there are coastal areas where the risk of collision is unexplored and abnormally high and has not been analysed yet. Therefore, the thesis aims to develop a method suitable to assess the risk of collision in coastal waters. A thesis literature review primarily focuses on the current collision risk assessment methods, circumstances of collisions, and sources of navigational information for coastal waters. The literature review concludes that a promising and novel approach is to detect near-collision situations based on the data from the Automatic Identification System (AIS). The near-collision exists when a ship's safety domain is violated and, simultaneously, the ship performed a last-moment evasive manoeuvre, which is identified by an abnormal ship's rate of turn. Building on a previous basic version of the near-collision detection method and AIS data provided by Safetec Nordic AS, this thesis develops a collision risk assessing tool that significantly outperforms the original method. The performance of the designed method was evaluated using AIS data from the Vestfjorden area in Norwegian coast during 2013-2015. The case study shows that this approach effectively detects near-collision situations but identifies a considerable number of new false near-collisions. The details and spatial distribution of detected near-collisions provide valuable insight into navigational areas vulnerable to collisions, collision circumstances, and frequency of collisions. |
author2 |
Kana, Austin (graduation committee) Hopman, Hans (mentor) Hassel, Martin (mentor) Delft University of Technology (degree granting institution) |
format |
Master Thesis |
author |
Grossmann, Martin (author) |
author_facet |
Grossmann, Martin (author) |
author_sort |
Grossmann, Martin (author) |
title |
Collision risk assessment in coastal waters |
title_short |
Collision risk assessment in coastal waters |
title_full |
Collision risk assessment in coastal waters |
title_fullStr |
Collision risk assessment in coastal waters |
title_full_unstemmed |
Collision risk assessment in coastal waters |
title_sort |
collision risk assessment in coastal waters |
publishDate |
2019 |
url |
http://resolver.tudelft.nl/uuid:30c436c1-7727-4068-9315-383c040ba6a0 |
genre |
Vestfjorden |
genre_facet |
Vestfjorden |
op_relation |
http://resolver.tudelft.nl/uuid:30c436c1-7727-4068-9315-383c040ba6a0 |
op_rights |
© 2019 Martin Grossmann |
_version_ |
1772820706559524864 |