Hello all,
I recently noticed unexpected results when using the routing interface at routing.osm.ch. When planning a bike or foot hike, the algorithm uses ferry routes over lakes if this makes the route shorter.
For instance, this bike course between Brienz and Bönigen mostly uses ferry routes : https://routing.osm.ch/?z=13%C2%A2er=46.715386%2C7.975903&loc=46.755034%...
Is this the expected result, an issue with the OSRM routing algorithm itself, its parameters or the definition of the ferry route ?
To me, routing over ferries is conceptually wrong, because the user is not actually biking or hiking on the ferry route. To stretch this to the extreme, the foot/bike routes should also include motorways and railways because a pedestrian/cyclist can mount a car/bus/train.
Best regards.
Alain