Abstract
The safety of a navigational ship is demanded for the prevention of marine accidents. The causes of a marine accident of a ship are collision, strand, engine trouble and etc. The most of ship's marine accident causes in the shallow water relatively of the coastal area. It is very important to propose the effective navigational information and the navigational simulation for the prevention of the marine accident. The present paper proposes the effective navigational simulation which includes many navigational information using GIS for avoidance of a marine accident. The expressions of navigational simulation in coastal sea area are two or three dimensional expression of water depth by color and contour line, the navigation mark and animation of navigational simulation. It is found that the support of ship's navigation by propose of the navigational information using GIS is very effective for a officer of a ship managing in shallow water area.
