抄録
It has become more difficult to voyage safely using human senses due to the upsizing and speeding up of ships. In order to help cope with the increasing difficulties, navigational instruments have been developed to support human senses. Above all, the advent of ECDIS has changed traditional watch duty on the bridge. The increased reliance on navigational instruments like ECDIS, has some negative consequences as well, and as a result marine accidents have occurred. Keeping this in mind, the purpose of this paper is ① to increase awareness of the appropriate uses of navigational equipment information, ② to investigate the relationship between the qualities of navigational equipment information and the operator, and ③ to discuss Marine Accident Inquiries with the goal of learning how to solve these problems. First, this paper will introduce occurrences of marine accidents using ECDIS. Next, the legal position of navigational equipment will be considered, and finally, conclusions will be drawn about the qualities of the appropriate uses and the operators in regards to navigational equipment.
