アンケート調査に基づく船舶離着桟時における速力情報に関する研究

概要

論文の詳細を見る
Regulation should be modified properly according to an advancement of science and technology. However current science and technology allows a navigator to use more accurate ship's speed information, it seems that the regulation of a ship's speed was unmodified for a considerable time. Primary purpose of this research is to clear on some mismatching points between a present regulation and navigators' requirements on the basis of a ship's speed. At the first step of this research, the questionnaire and interview survey were carried out. This survey targets at the captain who maneuvers from 500 to 50,000 gross tonnages. The main subjects for question are how dose a captain use the current navigational instruments or SOME (Speed and Distance Measurement Equipment) such as Electric Magnetic Log, Doppler Sonar, and GPS, to collect ship's speed information and dose he feel satisfaction with an accuracy of ship's speed by means of above instruments. As the result of this survey, in Docking/Leaving maneuvering many captains obtained speed information from his visual sight and the navigational instruments, and need more speed over the ground than speed through the water. The desired demand accuracy of speed in Docking/Leaving maneuvering was about 1〜50 cm/sec, and the desired time was at once.
社団法人日本航海学会の論文
2008-03-25