A Basic Study on a New Risk Assessment of Marine Traffic Environment -II.

Abstract

In the marine traffic environment in recent years, the radar display of the marine traffic information has been improved due to the increasing use of AIS. This fact is certainly related to the improved safety of marine traffic. However, as still there are a large number of vessels operated by the conventional navigation instruments, it is concerned that there is a potential risk between the vessels with AIS and those without AIS. Under these circumstances, the authors set a goal to develop a method of risk assessment of ship traffic environment for the vessels with different information. As the first step of this development, we tried to make a simple model regarding the features of the distance sailed to abeam based on the radar observation data and made the first report. In this study, we report the simple model regarding the features of the distance sailed including the distance ahead.