9.3  Symbols for basic elements of routeing measures

Unless otherwise specified, symbols are printed on charts in colour, usually magenta.

　

Routeing term	Symbol	Description	Applications	Notes and paragraph references
1  Established direction of traffic flow		Outline arrow	Traffic separation schemes and deep- water routes (when part of a traffic lane)	(1) (2)
2  Recommended direction of traffic flow		Dashed outline arrow	Precautionary areas, two-way routes, recommended routes and deep-water routes	(1)
3  Separation lines		Tint, 3mm wide	Traffic separation schemes and between traffic separation schemes and inshore traffic zones	(3) (4)and paragraph 9.4
4  Separation zones		Tint, may be any shape	Traffic separation schemes and between traffic separation schemes and inshore traffic zones	(4) (5) and paragraph 9.4
5  Limits of restricted areas (charting term)		T-shaped dashes	Areas to be avoided and defined ends of inshore traffic zones	(6) and paragraph 9.4
6  General maritime limits (charting term)		Dashed line	Traffic separation schemes, precautionary areas, two-way routes and deep- water routes
7  Recommended tracks: one-way two-way		dashed lines with arrowheads (colour black)	Generally reserved for use by charting authorities	(7)

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