Hi, Starting point: 47.1249831, -0.9800094 Ending Point: 45.6323189, 2.0350400 Default car profile and optimization The fastest: 363 km and 4:54 if I add: Waypoint: 46.6795853, -0.2635039 Same profile: 344 km and 4:34 there is a problem..... :-S
And if I replace the first waypoint with another here: path calculated by OSM waypoint: 46.8224906, -0.1189656 Same profile: 343 km and 4h32
with default car settings without waypoint I get these results
OSM - 424km, 4:43
TomTom - 344km, 4:34
problem is that OSM has no defined transit network, which is used on longer distances - we create artificial one, based on road categories, but that is not always most accurate
you can increase expansion to compensate for it, but calculation will be longer