As the shipbuilding industry and cutting-edge scientific technology have developed globally, all the countries of the world have expanded vessels competitively. Also, the vessel enlargement and its speedup have accelerated due to increase in quantity of goods transported in the port and cost reduction in the marin transport. This situation has spurred the necessity of considering every aspects that can happen in the port in different perspectives and dealing with them.
Especially, the safety in passage depending on large vessel’s arrival/departure in the waterway should be top priority in respect of marine transportation. As the windage area in the vessel as well as area below water line increased, the influence of the wind and current increased, resulting in the increase of influence on the safety of vessel’s course in the arrival/departure of the waterway. And also, the level of influence by the wind and current will be varied depending on the speed of the vessel. Thus, the waterway are closely associated with external factors such as the size of vessel, maneuverability and sailing environment.
The waterway means channel which is officially designated and announced to use as an access way. The waterway should be designed, taking the maritime traffic environment, terrain, weather and marine condition into account so as to ensure the safe navigation and facilitate shipbuilding. And the waterway width should be determined in consideration of the weather and marine condition including the vessel data, waterway traffic, traffic flow, waterway length, marine traffic volume, current intensity and direction and natural environment.
The waterway design is essential ingredient to construct the port in safe, efficient way from the point of view of vessel’s operator and also, the vessel’s course keeping ability greatly affects determining waterway width when designing the waterway. In addition, the breadth has increased to improve the transport ability when the waterway depth is limited. Thus, the determination of waterway width becomes more significant factor in designing the waterway.
The safe shipbuilding are dependent upon the vessel factors such as the size of vessel which will use the waterway and maneuverability; environmental factors such as wind, current and wave; the aids to navigation factors such as placement of aids to navigation and its performance; and human factors including experience and judgement of master and pilot.
Therefore, the purpose of this study is to examine the present state of domestic and foreign design criteria, especially regarding the determination of appropriate channel width, specify the vessel based on general maneuverability and estimate the appropriate waterway width, considering the evaluation elements suggested by each criteria. Also, this study aims to design the simulation scenario including environmental factors and vessel’s maneuverability and analyze the correlation with evaluation elements that affect the determination of minimum required channel width through the assessment of Fast-time simulation.
When the waterway will be determined in future for development or redevelopment, these study results can be utilized for the waterway design that takes the size of vessel, maneuverability and sailing environment into consideration.