Proposed features/Maritime borders

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The Feature Page for this approved proposal is located at Tag:boundary=maritime.
Maritime borders
Status: Approved (active)
Proposed by: gustavf and Skippern
Tagging: boundary=maritime
Applies to: way
Definition: Maritime borders, as defined in the United Nations Convention on the Law of the Sea and related national laws
Drafted on:
Proposed on: 2009-02-17
RFC start: Discussed on mailing list
Vote start: 2009-07-31
Vote end: 2009-08-14


Lots of countries have maritime borders, i.e. a national border that is formed by the sea. United Nations Convention on the Law of the Sea establishes that the territorial waters of a country can extend up to 12 nautical miles (22.227 kilometres) from the low-tide mark of the sea. This distance does not apply for all borders of this type: for instance, the English Channel is only 34km at it's narrowest point. In this situation, the national border lies at the midway point of the Channel. However, a significant number of country borders, lie 22km from their coastline.

When drawing coastlines, the rule is "water on the right, land on the left" thus a maritime border will always be on the 'right' of the coastline.

Boundary relations

National borders

The territorial waters line (12nm zone) should be included in boundary relations, the same way as land borders.

Internal borders

If a country has defined the maritime borders of sub national entities, this way should be included in boundary relations for these entitites.

Baseline

Base line: a line defining the coast line as used for border calculation, all borders below here are referred to base line. The base line draws lines across fjords, all navigational waters inside the base line are defined as 'inshore' or 'protected' water.

boundary=maritime
border_type=baseline
On Nodes: (optional)
ref=* reference of the waypoint
source=* should be stated together with ref!

Territorial waters (12nm zone)

12nm zone: the end of territorial waters

boundary=maritime
boundary=administrative since so many had a problem with grouping it together with maritime borders
maritime=yes to state that this is a maritime border, so it can be rendered correctly/different from land borders
admin_level=2 since it is a national boundary
border_type=territorial to distinguish it from borders on land

This line should also be member of the border relation surrounding the country.

Continuous zone (24nm zone)

24nm continuous zone: a continued area from the 12nm zone where a nation can continue control of vessels to prevent smuggling and piracy

boundary=maritime
border_type=continuous

Exclusive economical zone (200nm zone)

200nm economical zone: Often referred to as EEZ (Exclusive Economic Zone)

boundary=maritime
border_type=eez


Other notes

Administrative division of other than admin_level=2 will be discussed later, and is not part of this Proposal. Such division can easily be amended later. --Skippern 13:13, 13 February 2009 (UTC)


left:country=* and right:country=* is not a part of this proposal as this should not be done anymore as relation have taken over as the correct way to tag this. --Skippern 04:01, 24 March 2009 (UTC)

The border of admin_level=2 is not where two entities of admin_level 2 meets, but a continuous line around one entity of admin_level 2, therefor use admin_level 2 on the territorial border. --Skippern 03:16, 3 January 2009 (UTC)

Other levels of maritime boundaries can be amended later of needed, and is not discussed in this proposal.

Rendering

See Also

Key=boundary (German)

Voting

Type {{vote|yes/no}} -- ~~~~ to approve/oppose this proposal and sign with your user name & date.

Primary Vote Results moved to discussion page.

  • I approve this proposal I approve this proposal. --Skippern 01:29, 31 July 2009 (UTC)
  • I approve this proposal I approve this proposal. -- Aleksejs 08:31, 31 July 2009 (UTC)
  • I approve this proposal I approve this proposal. --Cbm 09:58, 31 July 2009 (UTC)
  • I approve this proposal I approve this proposal. -- Gustavf 13:20, 31 July 2009 (UTC)
  • I approve this proposal I approve this proposal. -- Daeron 14:33, 1 August 2009 (UTC)
  • I approve this proposal I approve this proposal. -- Tristan Thomas 14:56, 1 August 2009 (UTC)
  • I approve this proposal I approve this proposal. -- MikeCollinson 13:29, 2 August 2009 (UTC)
  • I approve this proposal I approve this proposal. -- Sletuffe 14:46, 2 August 2009 (UTC)
  • I approve this proposal I approve this proposal. -- Nighto 22:02, 3 August 2009 (UTC)
  • I approve this proposal I approve this proposal. -- seav 16:19, 5 August 2009 (UTC)
  • I approve this proposal I approve this proposal. -- Gnonthgol 22:28, 11 August 2009 (UTC)
  • I approve this proposal I approve this proposal. --Lulu-Ann 13:07, 12 August 2009 (UTC)
  • I approve this proposal I approve this proposal. -- Arj 12:36, 13 August 2009 (UTC)
  • I oppose this proposal I oppose this proposal.
For seaward national boundary we have:
boundary=administrative
+ adminlevel=2
(it ist not always "12-nm")
For special boundaries in sea we can add:
boundary:type=*     ( Baseline | 24_nm_zone | 200_nm_zone | 350_nm_zone | customs_zone )
A "new" master-key for only seawarden boundaries is not a win.
And for to show the boundary in the sea in an other colour, we dont need a "special tag" - a roule for the renderer is enough.
See also de:Key:boundary#Seewärtige_Grenze and Talk:Proposed_features/Maritime_borders#Proposal_in_August
--Markus 08:24, 13 August 2009 (UTC)
  • I approve this proposal I approve this proposal. -- Einarr 12:49, 13 August 2009 (UTC)
  • I approve this proposal I approve this proposal. -- Bobkare 16:48, 13 August 2009 (UTC)
  • I approve this proposal I approve this proposal. -- Claudomiro 14:06, 14 August 2009 (UTC)

Vote closed, 16 approvals, one rejection. Feature approved Skippern 04:17, 15 August 2009 (UTC)