Table 2. The relationship between the gaze structure on the road and the shape of the road

The gaze structure on the road	Shape of the road
	Approach type					Parallel type		Etc
	Inclined type			Flat type		View type		Conversion type
	Ridge road	Valley road	Sloping road	Level road	Dead end	Coast road	Side of a hill	A spur of a hill	Hillside road
Vertical to contour	○	○	○
Vertical to coastline				○	○
Parallel to contour						○	○
Complex								○	○