A device, a system and a method for an autonomous vehicle capable of independently travelling along a road and to communicate in a wireless way. The device is configured to determine a route for the autonomous vehicle, and to determine presence of any risk segment along the route. A risk segment is a segment of the road where the autonomous vehicle is determined to be in need of assistance based on characteristics of that road segment. If a risk segment is determined, the device is configured to perform a matching sequence in order to find a pilot vehicle capable of piloting the autonomous vehicle past the risk segment, and to generate information data α about a result of the performed matching sequence.