[Imports] IENC of the German WSV

Christian Wegerhoff Wegerhoff at mediaworx.com
Tue Dec 10 16:34:25 UTC 2013


Hi List.

The terms of usage for the IENC data of the German IENC have finally been modified to fit the needs of OpenStreetMap: 
Now there has no source note to be attached, especially if the data has been modified. 

So we intend to continue the manual insertion of buoys of the large German rivers into OSM from the IENC of the Water and Shipping Administration of the federal government (WSV).

Terms of Use:
Permission to import has been explicitly granted. The formulation of the Terms of Use has been specially adapted to the requirements of OpenStreeMap. 
Letter from WSV http://wiki.openstreetmap.org/w/images/c/c6/Terms_of_usage_ienc.pdf
Terms of use: https://www.elwis.de/RIS-Telematik/Inland-ENC-der-WSV/index.html 

Procedure:
The insertion is purely manually: From the source data, the relevant data are partially extracted and opened in JOSM. Here each node and each polygon is checked manually, especially if the object is probably already available. Possible duplicate nodes are not imported or merged, landmarks are transferred the on existing buildings.

Inserted information:
Inserted will be elements relevant for inland navigation such as fairway buoys, navigation signs (traffic signs) and the labeling of buildings as landmarks, e.g. smokestacks. At places where the riverbanks are "raw state" (very long straight lines or rough sawtooth pattern), we adapt the shore course (waterway = riverbank) in balance with the bing satellite image.

OSM user:
Uploading after manual correction is done with its own user "IENC import".

Areas:
The data are available for the following subsections waters in Germany:
Berlin-Spandauer-Schifffahrtskanal 
Donau 
Dortmund-Ems-Kanal 
Elbe
Elbe-Havel-Kanal
Elbe-Seitenkanal
Havel-Oder-Wasserstraße
Main 
Main-Donau-Kanal
Mittellandkanal
Mosel
Neckar
Rhein
Rhein-Herne-Kanal
Ruhr
Saar 
Spree-Oder-Wasserstraße (Teilabschnitt)
Untere Havel-Wasserstraße (Spandau - Plaue) 
Wesel-Datteln-Kanal 
Weser
Westoder

Test:
Data, tags and procedure have been tested on the Main.

Object types:
The following types of objects (seamark: type =) will be inserted:
seamark:type=anchorage
seamark:type=anchor_berth
seamark:type=beacon_cardinal
seamark:type=beacon_isolated_danger
seamark:type=beacon_lateral
seamark:type=beacon_safe_water
seamark:type=beacon_special_purpose
seamark:type=berth
seamark:type=buoy_cardinal
seamark:type=buoy_installation
seamark:type=buoy_isolated_danger
seamark:type=buoy_lateral
seamark:type=buoy_safe_water
seamark:type=buoy_special_purpose
seamark:type=cable_submarine
seamark:type=daymark
seamark:type=fairway
seamark:type=harbour
seamark:type=landmark
seamark:type=light
seamark:type=light_major
seamark:type=light_minor
seamark:type=light_float
seamark:type=light_vessel
seamark:type=mooring
seamark:type=navigation_line
seamark:type=notice
seamark:type=restricted_area
seamark:type=signal_station_traffic
seamark:type=signal_station_warning
seamark:type=small_craft_facility
seamark:type=topmark

The supposed duplication between tags of pure objects (e.g. lighthouse manmade=lighthouse or building=church) and their meaning for navigation (e.g. seamark:type=light_major or seamark:type=landmark) has already been well discussed: Not every such objects has a significance for navigation. So it is not a redundancy, but a supplementary tagging. This applies in particular to harbor=yes/seamark:type=harbor and historic=wreck/seamark: type=wreck.

Regards, Christian



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