[OSM-talk] Tagging of maritime borders
In Europe a number of maritime borders have been tagged recently as national borders, with boundary=administrative and admin_level=2. Exactly what is tagged varies: North of Norway: A part of the exclusive economic zone Finland: 24 mile contiguous zone South of Sweden: Looks like an approximation of the 24 mile contiguous zone Denmark: 24 mile contiguous zone Germany in the Baltic Sea: Seems to be territorial waters, but I have not checked the ED50 coordinates given in the source with the actual points Germany in the North Sea: Old 3 mile territorial waters? The Netherlands: Source is AND? Line approx 1 mile of the coast, unsure what this is. Belgium: 24 mile contiguous zone Italy: The coastline, but some places into the sea and other places on land. Greece/Turkey: Only tagged where islands from both countries are close to each other. This is, at best, confusing and, at worst, wrong. The territorial waters and contiguous zones have very different legal status from a national border, you can for instance pass through the territorial waters of a nation without any border controls. Some details are in the Wikipedia article for United Nations Convention on the Law of the Sea. I would suggest that maritime borders are not tagged the same way as land borders. Should we have a new tag for maritime borders? Stop tagging them? Ignore the problem? - Gustav ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Tagging of maritime borders
On Tue, Dec 30, 2008 at 9:32 PM, Gustav Foseid wrote: > In Europe a number of maritime borders have been tagged recently as national > borders, with boundary=administrative and admin_level=2. Have they been tagged as national borders or just as boundary=administrative? If it's the latter why is this an inappropriate use of the boundary=administrative tag? Exclusive economic zone and territorial waters are just another type of administrative borders at the trans-national level. ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Tagging of maritime borders
On Wed, Dec 31, 2008 at 12:22 AM, Ævar Arnfjörð Bjarmason wrote: > Have they been tagged as national borders or just as > boundary=administrative? If it's the latter why is this an > inappropriate use of the boundary=administrative tag? Exclusive > economic zone and territorial waters are just another type of > administrative borders at the trans-national level. They have been tagged just as normal land borders, with boundary=administrative and admin_level=2. The only difference is that they (for obvious reasons) normally have only one contry name, sometimes none. Replacing admin_level with something that indicates that the boundary is not between two different administrative entities of similar "level". - Gustav ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Tagging of maritime borders
> Message: 10 > Date: Tue, 30 Dec 2008 22:32:45 +0100 > From: "Gustav Foseid" > Subject: [OSM-talk] Tagging of maritime borders > To: osm > Message-ID: > <39f068130812301332s10bb9770y5af8ce4ace9b6...@mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > In Europe a number of maritime borders have been tagged recently as > national > borders, with boundary=administrative and admin_level=2. > > Exactly what is tagged varies: > North of Norway: A part of the exclusive economic zone > Finland: 24 mile contiguous zone > South of Sweden: Looks like an approximation of the 24 mile contiguous > zone > Denmark: 24 mile contiguous zone > Germany in the Baltic Sea: Seems to be territorial waters, but I have not > checked the ED50 coordinates given in the source with the actual points > Germany in the North Sea: Old 3 mile territorial waters? > The Netherlands: Source is AND? Line approx 1 mile of the coast, unsure > what > this is. > Belgium: 24 mile contiguous zone > Italy: The coastline, but some places into the sea and other places on > land. > Greece/Turkey: Only tagged where islands from both countries are close to > each other. > > This is, at best, confusing and, at worst, wrong. The territorial waters > and > contiguous zones have very different legal status from a national border, > you can for instance pass through the territorial waters of a nation > without > any border controls. Some details are in the Wikipedia article for United > Nations Convention on the Law of the Sea. > > I would suggest that maritime borders are not tagged the same way as land > borders. Should we have a new tag for maritime borders? Stop tagging them? > Ignore the problem? > > - Gustav > I agree with you there, I have myself interpolated a border 12nm off the coast of Brazil, and tagged it just as the national border. I would like to see more people take a look at http://wiki.openstreetmap.org/wiki/Maritime_borders and help make up a proper set of tags for maritime borders. I would like to see the various forms of maritime borders to be tagged such as territorial waters, fishing limits, economic zones and more. -- Brgds Aun Johnsen (Over Web Mail) ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Tagging of maritime borders
On Tuesday 30 December 2008 22:32:45 Gustav Foseid wrote: > The Netherlands: Source is AND? Line approx 1 mile of the coast, unsure > what this is. Those are the municipal borders, not the national border. -- m.v.g., Cartinus ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Tagging of maritime borders
On Tue, Dec 30, 2008 at 10:32 PM, Gustav Foseid wrote: > I would suggest that maritime borders are not tagged the same way as land > borders. Should we have a new tag for maritime borders? Stop tagging them? > Ignore the problem? The proposal authored by Aun (Skippern) is now open for voting at http://wiki.openstreetmap.org/wiki/Maritime_borders - Gustav ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
