This web service calculates shortest path by sea between given coastline points (e.g. harbours).

Click on the coastline or on open sea areas to set-up the desired points (numer of points is limited in this demo).

The algorithm provides:

1. Shortest path between successive destinations on the sea.
2. Distance-optimal visiting sequence of the destinations, where the first and last one are preserved.
3. Distance-optimal visiting sequence of a round-trip, where the first point serves as the returning point.

The calculated path is displayed directly in the map and the total distance is shown below.

• When calculating the path, we only make sure that it doesn't cross the land.
• As the source (OSM) and display (Google) data are not the same, small discrepancies can be observed in rare cases.
• We guarantee that the calculated path length between two points is not more than 103% of the length of the perfect shortest path.

The commercial version offers an extended functionality:

• More points available (up to 30).
• Path overrides and restricted areas administration at run-time.
• Data exchange taylored to your needs.
• Possibility of running the service on your own hardware.

For business details, please contact MIL Innovation CEO Asmund Olstad at asmund@milinnovations.com. If you are rather interested in techical details, contact the routing project team at routing@milinnovations.com.