This paper is concerned with the evaluation model of emergency capability evaluation for the ship at sea. The goal of our work is to find the human reasons leading to the poor ship emergency capability, and then improve the team cooperation ability in emergency to avoid the vessel accidents. In this paper, firstly, according to the special attitude of the ship on sailing, the emergency capability of the sailing team is mainly concerned, and an evaluation index of ship emergency capability is built based on this index system. Secondly, based on theory of fuzzy set pair analysis, the evaluation model for ship emergency capability is promoted where the certainty and uncertainty of the indicators are considered in a whole system. Finally, two examples of ship are brought into our model, and the calculation results prove that the promoted model is reasonable and feasible.

This paper is concerned with the calculation of the index weights for seafarers' competency evaluation model. The goal of our work is to obtain the reasonable index weight for the evaluation model. In this paper, firstly, the fuzzy comment data is prepared according to the fuzzy linguistic terms, and the intuitionistic fuzzy decision matrix is built. Secondly, base on the minimum intuitionistic fuzzy entropy theory, the linear programming model is established, and the objective weights are obtained by solving the model. Thirdly, the subjective weights are calculated by considering influences of the membership, non membership and hesitation degree of the comment data. Finally, the total weights are decided by both the objective weights and the subjective weights. The calculation results of the numeral example show the reasonability of the method.

In order to reduce the possibility of crew suffering from various injuries, quantitative marine individual risk model is adopted to improve the original Risk Matrix. Improved Risk Matrix quantizes the limit frequency and injurious consequences corresponding to the severity of the accident, thereby it reduces the ambiguity of Risk Matrix. Using the falling accident as example, this paper demonstrates the establishment of improved Risk Matrix for enterprise risk control.

This paper analysed the maritime safety system based on the self-organization system theory, built the evolution equation of sequential parameter, and proposed that each subsystem in the nonlinear interaction system worked together, The system is promoted to a more stable and more safety level with the synergetic effects. competition and cooperation effect which is generated by the sequential parameters dominates the other fast variables. The purpose of this paper is to discover the pattern of evolution of the maritime safety system, and provides a different theory and methodology to get a more safe and more clean environment of the maritime industry.