[OSM-talk] proposal navaid (was re: mapping the sea)

[Andy Deakin]

I think that it is a natural progression in osm to include information 
like this, and so to (eventually) make ENC maps freely available.  The 
certification may be a problem though. I do not know enough about it to 
comment.

I am not sure if the majority of people would want this information in 
the planet downloads, using the same reasoning as the SRTM data. So what 
is the best way/place to store this data?

How could underwater relief data be collected? Data feeds from vessel sonar?

Google earth now goes underwater! I wonder how long until their maps 
also have an underwater relief.

Andy

Sam Vekemans wrote:
> Hi, 
> I added a proposal idea, i just wanted to get some feedback.
> The proposal for 
> 'http://wiki.openstreetmap.org/wiki/Proposed_features/sea_mark' 
> <http://wiki.openstreetmap.org/wiki/Proposed_features/sea_mark>
> doesn't quite cover for navigational aids.
> I would like to include all type of navigational aids under this tag, 
> as a "man_made=buoy' is something that floats, and a 
> "man_made=lighthouse" is something that is on the ground.
> For navigational aids that do not float but have special 
> colours/markings/numbers to tell water users where to go.  The current 
> proposal seems to limit navigation on 'lakes & rivers ... if i am 
> working on A lake area and wanting to mark it, i wouldn't think of 
> 'sea_mark' .. as im not on a 'sea' :-)
>
> So "navaid=lighhouse"  "navaid=buoy" .. "navaid=IHO" where IHO is the 
> technical reference for the Image id.  ... and "navaid=seamark" (might 
> be the official term)??
>
> http://en.wikipedia.org/wiki/Electronic_navigational_chart
> http://en.wikipedia.org/wiki/Electronic_Chart_Display_and_Information_System
>
> This opens up a whole new can of worms, as its possible to make public 
> the ENC maps. ... so then all boaters can freely access the maps, 
> rather than having to purchase them... and an expensive cost, and 
> holding a monopoly on the information that should be made available 
> for free.  As this information benefits all water traffic.
>
> Cheers,
> Sam