操船者からみたAISの利用について

摘要

Today UAIS (Universal Automatic Identification System) has been under full operation on ocean-going vessels all over the world. For example, this system was set up on all domestic vessels of over 500GT. Under the present situation, some troubles of AIS data reception are reported because Class-A is going to be enforced completely. But the reliability on this systems and availability for seafarers are not researched sufficiently. Thus the authors surveyed the reliability of the system and examined how seafarers could make full use of it. So, some questionnaire survey were conducted for domestic seafarers who sail especially in congested areas in order to investigate how they can learn to use the system effectively. The survey showed that about half the respondents used the AIS only on board their vessels, while the others used it with overlaying its data with RADAR and ECDIS. The questionnaire survey also gave the following reality-based opinions: (1) AIS is available system for safe navigation of vessels, (2) there is some differences in perception between the seafarers that uses only AIS (stand-alone) and those who use overlaying techniques, and (3) there are some concerns about the reliability of AIS data.%今回のアンケート調査より以下の事がわかった。rn（1）内航船員はAISに関心を持ち、航行関連情報、rn静的情報の取得について評価している。rn（2）静的情報では、単体使用に比べ重畳表示の方rnが信頼度が高いことが統計的にいえる。rn（3）コメントを見ると、AISに対して良い評価をrnしている反面、システム運営に関する要望、rn使用者側の取り組みならびにAISのハード面rnの整備などの意見が多く出されている。