10 |
 |
Established (mandatory) direction of traffic flow |
 |
11 |
 |
Recommended direction of traffic flow |
 |
12 |
 |
Separation line (largescale, smaller scale) |
 |
13 |
 |
Separation zone |
 |
14 |
 |
Limit of restricted routeing measure |
 |
15 |
 |
Limit of routeing measure |
 |
16 |
 |
Precautionary area |
 |
17 |
 |
Archipelagic Sea Lane; axis line and limit beyond which vessels shall not navigate |
|
18 |
 |
Fairway designated by regulatory authority |
|