抄録
For sea traffic data acquisition we have ; direct observation, radar image and radar ARPA. This is the basic method today of analyzing sea traffic. Nowadays, the number of AIS equipped ships is increasing, so that sea traffic can be more readily observed by AIS. In this paper, we propose creating a sea traffic database system using AIS. Also, the outline and conclusion of such a system in Osaka bay is described. This system would aim to offer sea traffic data for analysis and in various fields.