Object Class: Archipelagic Sea Lane Axis
NEW in S-57 Edition 3.1.1
For reasons of backward compatibility with Edition 3.1, the new feature object classes which appear in S-57 3.1.1 must have their meaning described in at least one of the attributes INFORM or TXTDSC. For consistency, when one or both of these attributes is used, the text must commence with the approved object class name of the feature, such as ‘Archipelagic Sea Lane Axis’.
Acronym: ASLXIS (L)
Set Attribute_A: DATEND; DATSTA; *NATION; NOBJNM; OBJNAM;
Set Attribute_B: #INFORM; NINFOM; NTXTDS; PICREP; SCAMIN; #TXTDSC;
Set Attribute_C: RECDAT; RECIND; SORDAT; SORIND;
The reference line used to determine the maximum extents of an Archipelagic Sea Lane. It may not indicate the deepest water nor any recommended route or track.
Article 53 of the United Nations Convention on the Law of the Sea (UNCLOS) states that:
‘an archipelagic State may designate sea lanes ..., suitable for the continuous and expeditious passage of foreign ships ... through ... its archipelagic waters and the adjacent territorial sea. ... All ships ... enjoy the right of archipelagic sea lanes passage in such sea lanes ... [which] include all normal passage routes used as routes for international navigation ... through archipelagic waters’.
INT 1: IM 17;
In the definition, references to aircraft and air routes in UNCLOS have been omitted in these extracts from Article 53. (IHO S-4 B-435.10, S-51 Appendix 2 Part II)
Distinction: administrative area; archipelagic sea lane; caution area; deep water route centreline; fairway; inshore traffic zone; navigation line; recommended route centreline; recommended track; recommended traffic lane part; restricted area; submarine transit lane; traffic separation scheme lane part; traffic separation line; traffic separation zone; two-way route part.