Traffic Flow Impact On Harbor Road Of Container Terminals Under The Yard Emergency

With the rapid development of international container transportation, the handling, storage and transportation technologies of container terminals get more complicated and the amount and type of dangerous goods grows constantly, which makes the port and security incidents occurred frequently and gives the security issues of container terminals a tremendous pressure. The container yard is one of the largest regions in container terminals and the traffic composition of the container yard is the most complicated, once the emergency happened, the operation efficiency of container terminals will be affected. Thus the scientific grasp of the traffic flow impact on harbor road of container terminals under the yard emergency will improve the emergency response capacity of container terminals.Through the analysis of the definition, characteristics and classification, the research gives out the determination method of the impact time and impact range of the container yard emergency and builds the container terminal operation process model considering the container yard emergency. Through the analysis of the traffic composition, the traffic flow characteristic and distribution of container terminals, the research builds the harbor road traffic model of container terminals. Combining the two models by computer simulation, the research builds the traffic flow simulation model under the container yard emergency.Applying the traffic flow simulation model under the container yard emergency to the container terminal, the model can capture the traffic flow changes of container terminals effectively; study the traffic flow impact on harbor road, the operation efficiency and the road network performance changes of container terminals under the yard emergency quantitatively; reveal the rule of the traffic flow impact on harbor road under the container yard emergency.The traffic flow simulation model under the container yard emergency can provide theoretical references for the planning and design of harbor road network and transportation scheduling and control under the container yard emergency. It has a significant guiding and application value in improving the prevention and treatment ability of the container yard emergency and the traffic planning and layout of container terminals, implementing the safety production and sustainable development of container terminals.