In recent years, with the development of national economy and world trade, the shipping industry has been increasing and the traffic environment is changing, which results in the happening of maritime traffic accidents occasionally. Nowadays, the important symbol for domestic and overseas to estimate a country's shipping standard is to test the height of safety evaluation in this field, and it is also an important target for a country to become a greater power from a greater power in shipping.As the most dominant and the core strategic resources, Tianjin Lingang Port is a important media for construction of Tianjin in northern international shipping center and international logistic center, to further promote the development of Binhai New Area. According to the overall plan of Tianjin Port, Tianjin Port Industrial Zone is an integral part of the port industry and port development also promoted the importance of relying on hand. Tianjin Lingang Port in the sea cargo volume increasing, supporting the berth, channel construction is proposed. Since the construction of the navigable waters of greater environmental impact. Therefore, the proposed project to study the waters of the navigation environment is significant.Based on the security situation in Tianjin Lingang Port navigation analysis and comprehensive analysis of the environment, This article evaluates the risk of navigation environment of Tianjin Lingang Port in qualitative and quantitative. First of all, based on Tianjin Lingang port traffic accidental statistics in recent years and the application of system safety analysis method to analyze the waters near Tianjin Lingang Port and the navigation system's security environment and to identify safety hazards on the navigation environment factors; Secondly, the port waters of the risk environment in the channel as object, in the analysis of channel water environment safe navigation of the ship combined with other factors related to research scholars to determine the assessment index system, build three-tier indicator system and listed separately for each a level surface targets; again, at home and abroad the navigation environment simulation results and other relevant Data statistics and analysis of data based on the degree of danger index quantitative criteria as a basis for determining Ping Jia membership function of each factor indicators; On this basis, the use of fuzzy evaluation method and evaluation of evidence theory in Tianjin Port, respectively consolidated navigation safety; Finally, the calculation results of two prior to shipping safety assessment of Tianjin Port conclusion is confirmed by comparing the qualitative calculation presented in this article rationality and environmental security context of the current navigation status, analysis forecast to meet the future needs of Traffic Safety, Tianjin Port and related units in the planning, construction and security measures and contingency response Management such as goals to be achieved. |