2000 年 103 巻 p. 69-76
It has been generally considered that the marine traffic management means just the traffic control and information service by VTS. VTS is one of the management measures designed to improve the safety and efficiency of vessel traffic. But it can be said that the marine traffic management means the managerial technical measures for improving the marine traffic safety in general terms if we look from a broader viewpoint of marine traffic engineering. And it includes the total amount control, the efficient traffic flow, the navigation speed control, the traffic control by signal, the navigation aids offer, and so forth. There has been no research to assess the effect of each marine traffic management measures. In this series of investigations, how much each management technique contribute to the alleviation effect of ship-handling difficulty in a quantitative way is assessed and the design standard is proposed when the individual management measure is applied in an actual waterway. In the first report of this research work of the present paper, when the total amount control for ships is applied to the completely random traffic condition, this management measure is assessed quantitatively from the viewpoint of the reduction of the stress burdened to mariners. And a diagram is proposed to look for limited traffic amount not as to have difficulty for mariners. According to this diagram, the practical standard can be found for the design when total amount control is undertaken as one of the tentative measure amongst marine traffic management measures.