Evaluation And Optimization Of Emergency Coordination Capability Of Long-Range Island Terminals

In the process of the implementation of China’s maritime power strategy,due to the gradual expansion of marine economic development activities to distant areas,marine emergency activities such as marine rights and interests maintenance,navigation safety,life rescue,marine resources protection,emergent disposal of marine pollution have become more and more frequent,resulting in explosive growth of emergency transportation activities.However,due to the special traffic and geographical environment in the distant ocean,the limited mode of marine emergency supply and the relatively small berth resources of the island terminals,the shortage of the loading and unloading capacity of the marine emergency supply often becomes the main bottleneck restricting the improvement of the emergency capacity of the distant ocean in China.In view of the reality background of the emergency activities in the far sea area,this paper takes fuel supply as an example to evaluate and optimize the emergency coordination capability of the long-range island wharf.The main research contents are as follows:First of all,this paper illustrates the research background,purpose and significance of this research,reviews related researches of domestic and foreign scholars in port capacity evaluation and optimization,island port and maritime emergency,and then introduces the basic theories and methods involved in this study,such as collaborative theory,queuing theory,system simulation and heuristic algorithm.Secondly,on the one hand,through the analysis and induction of the logical relationship of collaborative network analysis,transportation demand analysis,vessel scheduling simulation and design scheme optimization,the modeling framework of long-range island terminal emergency collaborative system is completed;on the other hand,the arrival queue sequence model is constructed to minimize the total time cost of search and rescue task.Thirdly,taking the fuel supply situation of an island in the South China Sea as an example,according to the modeling framework,the evaluation index is obtained through collaborative network analysis,transportation demand analysis and vessel scheduling simulation in the evaluation system;then two optimization strategies are considered:(1)an optimization method is proposed to solve the arrival queue order model.(2)an improved scheme of adding specialized berths is proposed to optimize the planning and design of long-range island terminals.Finally,through the analysis of the evaluation results,this research discovers that the contradiction in the use of berths caused by the addition of the transport fleet is the main reason to limit the emergency coordination ability of the long-range island terminal when the offshore accident occurs.By comparing the optimization results,this research clearly demonstrates that in order to eliminate the contradiction between the two,part of the general berths of the island terminal should be converted into specialized berths.The research results of this paper could provide theoretical support for the development of long-range island terminal collaborative system from the perspective of emergency response,and have important guiding significance for safeguarding China’s marine rights and interests,protecting people’s lives and property safety,and improving the ability of maritime accident emergency coordination.The evaluation method and optimization strategy proposed in this paper can provide reference for the planning and design of long-range islands.