Study On Ship Collision Accident Situation At Sea

With the rapid development of the marine economy,the demand for shipping at sea is growing and resulted in more complex conditions of navigation at sea,the risk of maritime traffic safety increased year by year.The ship collision accident has the highest incidence in various types of shipwrecks and could cause unavoidable economic losses,environmental pollution and even casualties.How to accurately determine the accident level according to the changing degree of harms after the accident,and how to carry out urgent and effective rescue work according to the situation of the scene is the focus with which the emergency treatment should be concerned.Therefore,based on the analysis of the characteristics and the situation of the ship collision accident,and the thesis established the ship collision accident situation model by using Bayesian network,studied the intricate relationship between various factors and accidents,and mastered the occurrence and development's regular pattern of accidents in order to improve the level of China's maritime traffic safety management and reduce the degree of accident hazards.The main contents of this paper are as follows:1)Analysis of the characteristics of ship collision accidents: This paper analyzed the characteristics of ship collision accidents,the grade,factors and others based on the previous research results and accident investigations,and combed the relevant elements affecting greatly the ship collision accidents' situation through the collection of accident data and previous research data to pave the way for the selection of late network nodes.2)Ship collision accident situation-element index: According to the analysis of the characteristics of the ship collision accident,it drew lessons from road traffic research to introduce the concept of the trend research into maritime ship collision accident emergency treatment.From the accident development stage and combined with expert survey results,the thesis built the ship collision accident situation element-index.3)Feasibility analysis: According to the research background and the current research situation at home and abroad,compared with the situation of several commonly used research methods,it analyzed the feasibility of Bayesian network in the field of ship collision accident situation from the perspective of maritime ship transportation.4)Modeling of ship collision accident situation based on the Bayesian network: With the Bayesian network modeling method and various learning algorithms,the model of ship collision accident situation with layered Bayesian network was proposed.And under the influence of main factors,it explored the inherent law of the occurrence,development and final result.Finally,taking the Fujian area as an example,used MATLAB software to verify the feasibility and rationality of the model.The research results of this paper can be used to reveal the inherent law of the occurrence,development and final result of the ship collision accident under the influence of various factors,predict the change of the accident situation and the duration of the accident,facilitate the effective control and reasonable disposal of the ship collision accident and reduce the degree of damage to the accident.The research results can provide scientific basis for the emergency decision-making of maritime traffic accidents and the preparation of contingency plans by maritime management departments,having certain theoretical and practical significance of improving the safety management of maritime traffic and safeguarding the effective safety of sea transportation.