Complex network-based analysis of regional vessel navigation risk

As maritime traffic increases, the sailing environment becomes increasingly complex, necessitating the enhancement of maritime traffic safety. The precise real-time quantification of ship navigation risk is essential for the intelligent management of water traffic, helping to improve the ability to handle emergencies. This study seeks to analyze regional ship navigation risk comprehensively using complex network theory. Firstly, the ship conflict relationship is calculated using DCPA and TCPA to construct a conflict connection topology diagram. Then, using the ship as the node and the conflict relationship as the edge, a dynamic quantification network of regional navigation risk is built, and the regional network risk value is calculated. Through the node deletion method, key ships and key communities are identified, and the total risk is quantified. The results of the study assist in optimizing route planning and enhancing sea traffic safety and efficiency.