Critical Collision Risk Index Based on the Field Theory
Collision-risk measurements are crucial for ships, as they are necessary for collision avoidance decision making. However, collision risks between ships have not been quantified in unified standards. In this study, a critical collision index is proposed to describe the critical degree of collision r...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-11-01
|
| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/10/11/1748 |
| _version_ | 1797464888865456128 |
|---|---|
| author | Wenyao Ma Hongbo Wang Shengyin Wang |
| author_facet | Wenyao Ma Hongbo Wang Shengyin Wang |
| author_sort | Wenyao Ma |
| collection | DOAJ |
| description | Collision-risk measurements are crucial for ships, as they are necessary for collision avoidance decision making. However, collision risks between ships have not been quantified in unified standards. In this study, a critical collision index is proposed to describe the critical degree of collision risks between ships. Based on the field theory, a collision-risk field was introduced to build a field strength model based on the collision index. The model synthetically considers the influences of distance at closest point of approach, time to closest point of approach, and the relative bearing of coming ships. Moreover, the real time to the closest point of approach was used for describing the collision risk between ships. In addition, encounter situations and collision risks in the field were simulated using the field strength model and isorisk lines. The results are in agreement with the real collision-risk perceptions of Officers on Watch. It was shown that the proposed ship critical collision index can play an important role in ship collision avoidance and early warning systems. |
| first_indexed | 2024-03-09T18:13:38Z |
| format | Article |
| id | doaj.art-3f3864bc23474f4190c2dfd3f6300064 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-09T18:13:38Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-3f3864bc23474f4190c2dfd3f63000642023-11-24T08:52:14ZengMDPI AGJournal of Marine Science and Engineering2077-13122022-11-011011174810.3390/jmse10111748Critical Collision Risk Index Based on the Field TheoryWenyao Ma0Hongbo Wang1Shengyin Wang2Maritime College, Guangdong Ocean University, Zhanjiang 524000, ChinaMaritime College, Guangdong Ocean University, Zhanjiang 524000, ChinaNavigation College, Dalian Maritime University, Dalian 100026, ChinaCollision-risk measurements are crucial for ships, as they are necessary for collision avoidance decision making. However, collision risks between ships have not been quantified in unified standards. In this study, a critical collision index is proposed to describe the critical degree of collision risks between ships. Based on the field theory, a collision-risk field was introduced to build a field strength model based on the collision index. The model synthetically considers the influences of distance at closest point of approach, time to closest point of approach, and the relative bearing of coming ships. Moreover, the real time to the closest point of approach was used for describing the collision risk between ships. In addition, encounter situations and collision risks in the field were simulated using the field strength model and isorisk lines. The results are in agreement with the real collision-risk perceptions of Officers on Watch. It was shown that the proposed ship critical collision index can play an important role in ship collision avoidance and early warning systems.https://www.mdpi.com/2077-1312/10/11/1748ship collision riskcritical collision indexcollision-risk fieldisorisk line |
| spellingShingle | Wenyao Ma Hongbo Wang Shengyin Wang Critical Collision Risk Index Based on the Field Theory Journal of Marine Science and Engineering ship collision risk critical collision index collision-risk field isorisk line |
| title | Critical Collision Risk Index Based on the Field Theory |
| title_full | Critical Collision Risk Index Based on the Field Theory |
| title_fullStr | Critical Collision Risk Index Based on the Field Theory |
| title_full_unstemmed | Critical Collision Risk Index Based on the Field Theory |
| title_short | Critical Collision Risk Index Based on the Field Theory |
| title_sort | critical collision risk index based on the field theory |
| topic | ship collision risk critical collision index collision-risk field isorisk line |
| url | https://www.mdpi.com/2077-1312/10/11/1748 |
| work_keys_str_mv | AT wenyaoma criticalcollisionriskindexbasedonthefieldtheory AT hongbowang criticalcollisionriskindexbasedonthefieldtheory AT shengyinwang criticalcollisionriskindexbasedonthefieldtheory |