JRC ECDIS Instruction Manual page 316

Category name
(Obstructions) Direction and color of
buoyage for approaching
harbor in IALA region B
(green to port)
Fairway with one-way traffic
in direction indicated
Fairway with two-way traffic
Inshore traffic
Recommended traffic
direction between parts of a
traffic separation scheme, or
for ships not needing a deep
water route
Recommended two-way
track as an area, based on
fixed marks
Recommended one-way
track as an area, based on
fixed marks
Traffic roundabout
Reciprocal traffic directions in
a two-way route of a traffic
separation scheme
Single traffic direction in a
two-way route part of a traffic
separation scheme
Traffic crossing area
Part of deep water route
Reciprocal traffic directions in
a two-way part of a
deep-water route
(Obstructions) Traffic direction in a one way
lane of a traffic separation
scheme
Appendix B Menu List and Materials
Object name
B-136
Icon button display
the own ship approaches
example
No alert
No alert
No alert
No alert
No alert
No alert
No alert
No alert
No alert
No alert
No alert
No alert
No alert
No alert
Alert generated when
the object