Risk evaluation on navigation in the bridge zone based on matter element model

In the risk channel area, the bridge area is becoming a trigger accident node field. Navigation safety relates to the human, ship, environment and many other factors, evaluation index system and evaluation criteria on navigation in the bridge zone are established first, and with the use of entropy theory, the index weight is identified; then the element theory is used to construct risk evaluation model, and to obtain the evaluation results with live navigation, which can be used to post navigation risk rating. Practice shows that the application of this method is reasonable, the results are highly accurate¹L.