| With the rapid development of China’s water transportation and intensified efforts of ocean utilization, ship traffic becomes increasingly busy and water traffic flow increases greatly. This cause water traffic congestion and lead to water traffic accident frequently. Evaluating Water traffic safety, making the water traffic planning decision-making, Improving water traffic safety degree and avoiding water traffic accidents have become the top priority of the related transportation management. Water traffic macro simulation is an important method to achieve these functions. The development and use of related water traffic macro simulation system provide intuitive water traffic flow dynamic display and the evaluation of water traffic safety, also provide important reference for port planning and construction.Based on synthesized the former research, this paper discusses the present situation of the water traffic flow research about China and abroad. The existing water traffic flow formation models are Combined with and improved in this thesis. At the same time, the paper achieves the model algorithm and dynamically shows that traffic flow situation. Through the simulation of Qiongzhou strait, which includes water traffic flow situation of three days, the feasibility of this system and its practical value have verified.The concrete works of paper are as follows:(1) On the basis of research achievements in China and abroad, methods and general framework of the water traffic simulation are analyzed and summarized.(2) The formation and development of the ship and traffic flow are researched. Based on synthesized the former research, the paper learns from others’ strong points to offset its weakness. According to the function of the water transportation macro simulation requirements and for the sake of more real water traffic flow simulation, more influence factors to consider are joined in the existing water traffic flow model.(3) A general water traffic simulation framework of based on water traffic flow model is established. This framework achieves these models, generates each vessel on the route, forms the water traffic flow by track calculation on each route and dynamically displays the traffic flow in the electronic chart.(4) The paper realizes the water traffic flow formation models algorithm. With the example of Qiongzhou channel three days of traffic flow situation, macro simulation of the water traffic flow is proceeded in this paper, then the water traffic flow of macro simulation is dynamically displayed on the electronic chart shows platform. |
