Navigation data for maritime shipping complies with the ENC standard of the International Hydrographic Organization (IHO). ENC stands for Electronic Navigational Chart. The ENC fundamentals are laid down in the IHO publications "S-52 Colour & Symbol Specifications for ECDIS" as well as "S57 Transfer Standard for Digital Hydrographic Data". The ENC standard was extended specifically to cover the demands of inland waterway navigation, and charts based on this standard are referred to as Inland Electronic Navigation Charts (IENC).


Preparation and visualisation of the content of the Inland ENC (IENC) as well as various base geodata for employees of the Wasser und Schifffahrtsverwaltung (Waterways and Shipping Board). Implementation of an easy-to-use, browser-based information system with MapServer as the underlying solution.


MapServer-LogoThe WebGIS solution was developed for the Waterways and Shipping Board Southwest in Mainz. The primary target group for this solution included employees of the Waterways and Shipping Authorities in Koblenz, Bingen, Mannheim, Heidelberg, Stuttgart, Trier, Saarbrücken and Freiburg. 

MapServer and Open Layers were utilised as web-mapping components.

In addition to the IENC navigation chart objects, the content of digital charts of the federal waterways (DBWK2), aerial photos, land plots and digital terrain models (DGM), the property boundaries of the real estate owned by the Waterways and Shipping Board as well as lots of technical data layers.  are also displayed. 

The users can query the attribute data of the objects as definied in their user-role. Overall there are 240 technical layers and 11 WMS maping services included in the system.

 The following additional features were implemented.:

  • PDF-printfunction
  • Saving and loading of the actual view in a projectfile
  • Query- amd measuring functions
  • Adjustable transparency of aerial photos
  • Redlining with textlabeling including  
  • PDF-printfunction. Download of the redlinig-objects as ESRI-Shapefiles
  • different spatial searchfunctions
  • Integration of video- /photo- and webcam-data in the map
  • interface to "Globespotter" from Cyclomedia to show 360°-Panorama views


The system runs on a powerful GDV server at a favourable GDV-GeoHosting price.

Sie möchten umfassendere Informationen zur Anwendung selbst und deren Einsatz- und Entwicklungsstufen? Dann sprechen Sie uns an: +49.(0)6132.7148.0 oder senden Sie uns eine Email: info at!