Study On Grey Clustering Decision Model Of Vessels Emergency Evacuation

In response to the impact on the port by strong wind and other extreme weather ,many port has developed ships emergency evacuation plans. How to complete the emergency evacuation safely and rapidly with limited time and resources,that is a problem that relevant units seek to solute.In order to reduce the potential risk of the ship during evacuation operation.how decided the evacuate order of the ships is more and more be concered, especially the busy port with abundant vessels.The fundamental goal of evacuation is to guarantee security.Factors affecting the safety of the ship evacuation are complex,some factors difficult to quantify due to randomness,so it's very difficult to accurately scheduled ship evacuation order. The evacuation order that do not take into account random factors in, the order may change by random factors and the credibility is certain extent effected.The order of the adjacent vessels may differ very little risk,there is no essential difference. The vessel safety of evacuated is no absolute.From the analysis of the risk factor in the evacuation operation,we identified the emergency evacuation order index system of the ships. This paper apply the gray clustering method of gray system theory,the extent of priority similar ships were under the same level.Ensure that the focus of high-risk priority evacuation ship for safety.Vessel in the same level without the absolute order, the order can be in accordance with the actual situation, deploy tugs and staff, based on the principle of giving priority to efficiency, to complete the evacuation,at the same time taking into account the evacuation efficiency.This paper take Bayuquan harbour as an simulation example,the results were in line with the actual situation after compared and analysed.The selected method are appropriate.This method can provide reference for high reliability for related departments in the implementation of emergency evacuation.