Chart 1 : Symbols, Abbreviations and Terms

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Tracks, Routes - Section M

Routeing Measures

Ref. IHO Symbology Description CHS Symbology
10 Established (mandatory) direction of traffic flow
11 Recommended direction of traffic flow
12 Separation line (largescale,
smaller scale) Ligne de séparation (grande échelle, petite échelle)
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
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