Method and control arrangement for vehicle route planning

Method (300) and control arrangement (130), for route planning of a vehicle (100). The method (300) comprises big data gathering (301) of geographical position, time and vehicle data from a plurality of vehicles (100, 101, 102), over a time period; storing (302) the gathered (301) big data information in an offboard storage device (140), associated with road map data; receiving (303) a request for route planning, comprising a starting point (110), a destination (120) of the vehicle (100), and a point in time; receiving (304) a set of constraints related to the vehicle (100); planning (306) the route for the vehicle (100), based on the received (303) request for route planning, the received (304) set of constraints, the stored (302) gathered (301) big data information and the road map data; and providing (307) the planned (306) route to the vehicle (100).