Integration of elliptical ship domains and velocity obstacles for ship collision candidate detection

Integration of elliptical ship domains and velocity obstacles for ship collision candidate detection

Chen, P. (TU Delft Safety and Security Science)
van Gelder, P.H.A.J.M. (TU Delft Safety and Security Science)
Mou, J. M. (Wuhan University of Technology)

2019

The maritime shipping industry has been making significant contributions to the development of the regional and global economy. However, maritime accidents and their severe consequences have been posing an incrementing risk to the individuals and societies. It is therefore important to conduct risk analysis on such accidents to support maritime safety management. In this paper, a modified ship collision candidate detection method is proposed as a tool for collision risk analysis in ports and waterways. Time‐Discrete Velocity Obstacle algorithm (TD‐NLVO) is utilized to detect collision candidates based on the encounter process extracted from AIS data. Ship domain model was further integrated into the algorithm as the criteria for determination. A case study is conducted to illustrate the efficacy of the improved model, and a comparison between the existing method and actual ship trajectories are also performed. The results indicate that with the integration of ship domain, the new method can effectively detect the encounters with significant collision avoidance behaviours. The choice of criteria can have a significant influence on the results of collision candidate detection.

Collision Avoidance
Elliptical Ship Domain
Ship Collision Candidate Detection
Time-Discrete Velocity Obstacle Algorithm (TD-NLVO)
AIS Data
Ship Trajectory
Collision Candidate Detection
Collision Candidate

http://resolver.tudelft.nl/uuid:e61b573f-9fba-4d75-9a83-7cde1a22a362

https://doi.org/10.12716/1001.13.04.07

2083-6473

TransNav, 13 (4), 751-758

Institutional Repository

journal article

© 2019 P. Chen, P.H.A.J.M. van Gelder, J. M. Mou