実船調査による航行環境評価指標の解析

概要

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In this research, we made a study of the analysis of evading navigation area of ships and the evaluation index for navigational environment based on the data by actual ship survey. In our analysis of the data by actual ship survey, we investigated the extent of passing and evading navigation areas in different navigation sea areas, such as coastal sea areas, congested sea areas and narrow channel sea areas, making both approaching speed and statistical stopping performance characteristic of ships parameters. The results of our study are as follows : ○ The extent of passing navigation area was evaluated macroscopically from approaching speed and stopping performance characteristic of ships. ○ It was found that the extent of evading navigation area was about 1.3〜1.5 times as large as that of passing navigation area. ○ It was found that the extent of evading area for crossing ship was about 1.2 times larger as compared to case of ships navigating in the opposite or same direction. ○ A reference evading area was determined as the criterion of evaluation index. Further, the congestion degree of navigation sea was evaluated quantitatively using the reference evading area.
社団法人日本航海学会の論文
1998-03-25