Proposal:Lough Erne Navigation
|Lough Erne Navigation
|Proposed (under way)
|A navigation marker on the Lough Erne Waterways
Lough Erne, located in Northern Ireland has a non-standard system of marks used for navagation on the river and lakes. Unlike IALA lateral markers, the system has no concept of direction of bouyage and instead uses red/white topmarks that indicate which side traffic should pass. Rather than "polluting" the seamark=* namespace, the suggestion is to add a tag specifically for this set of waterways.
Markers that cover the entirety of Lough Erne waterways are in a position to be added to OSM soon and it would idea to settle on a tagging scheme for when this is done.
lough_erne_nav:type=* would indicate the type of naviation mark. In addition, if the marker is lough_erne_nav:type=lateral an additional lough_erne_nav:lateral:pass=* tag would be added to indicate to which side the marker would be passed. Ideally this would be a Cardinal direction (including intercardinal or secondary intervardinal), for ease of validation.
These tags would be used in conjunction with seamark=* tags
|A lateral (port or starboard) navigation marker
|A cardinal direction (N, NE, NNW, etc ) indicating on which side the marker should be passed
|A do not pass "no entry" marker
|A middle ground marker, that indicates the area should be given a wide berth
These would not be rendered on mapnik, rather they would have to be rendered using the OpenSeaMap tools. This is a separate issue as the OpenSeaMap appears to be relatively dormant at the moment. Nonetheless, having this information saved would be ideal for use in the future.
Please comment on the discussion page.