Abstract: A method for selecting at least one connection pattern drivable by road users using a control device. Trajectory data are received from at least one area. On the basis of the received trajectory data, starting points and end points of drivable trajectories are determined. All the connection patterns between the starting points and the end points of the drivable trajectories are determined in the form of connecting lines. The determined connection patterns are filtered by at least one filter. Connection patterns remaining after filtering are compared with route profiles from the trajectory data. For each remaining connection pattern a number of route profiles which correspond to the connection pattern are counted. A connection pattern with the highest number of matching route profiles is selected. A control device, a computer program, and a machine-readable storage medium are also described.

Abstract: A method for enriching a map representation of a traffic infrastructure. The method includes: receiving map data of a map representation of a traffic infrastructure, the map representation including pieces of information of a multitude of roadways negotiable by vehicles, the map representation encompassing pieces of information regarding at least one roadway including a transition area; receiving trajectory data of a multitude of first driving trajectories and a multitude of second driving trajectories of a multitude of vehicles; ascertaining a first number of the first driving trajectories and a second number of the second driving trajectories, and comparing the first number to the second number; and marking the first route as a preferred route in the map representation if the first number is greater than the second number.

Abstract: A method for creating map data having lane-specific resolution. Mapping data are initially received, the mapping data being transmitted by a vehicle, and including a vehicle trajectory and at least one object feature. Once the mapping data has been received, it is checked whether map data for local surroundings of the received mapping data are present. In the event the check indicates that no map data are present, map data are created from the mapping data and stored in a memory. In the event the check indicates that map data are already present, the map data are compared with the mapping data. If this comparison reveals that the mapping data differ from the map data, the map data are adapted, the adaptation taking place on the basis of a weighting factor. The adapted map data are subsequently stored in the memory.

Abstract: A method for ascertaining following distances as a function of position by a control device. Measurement data of at least one trajectory along at least one route, having a multiplicity of measurement points including position data and distance data from vehicles that are ahead, are received, A group of test points along the route is distributed at pre-defined distances from one another. At each test point, an intersection line that is oriented transversely in relation to a course of the route is generated, Pairs of points corresponding to the intersection lines are ascertained from the multiplicity of measurement points. Based on the distance data, at least one following distance is allocated to the pairs of points corresponding to at least one intersection line. A control device, a computer program, and a machine-readable storage medium are also described.

Abstract: A method for selecting at least one connection pattern drivable by road users using a control device. Trajectory data are received from at least one area. On the basis of the received trajectory data, starting points and end points of drivable trajectories are determined. All the connection patterns between the starting points and the end points of the drivable trajectories are determined in the form of connecting lines. The determined connection patterns are filtered by at least one filter. Connection patterns remaining after filtering are compared with route profiles from the trajectory data. For each remaining connection pattern a number of route profiles which correspond to the connection pattern are counted. A connection pattern with the highest number of matching route profiles is selected. A control device, a computer program, and a machine-readable storage medium are also described.

Abstract: A method for producing a lane-accurate road map. The method includes providing a digital road-accurate road map, providing a trajectory data record, identifying at least one road with segmenting of the road-accurate road map into at least one road segment, modeling the road segment in a road model, the road model having parameters for describing lanes of the road, random variation of parameter values of at least a part of the parameters of the road model through random selection of a change operation of the road model, and assigning at least a part of the trajectory data of the trajectory data record to the road model with ascertaining of at least one probability value for the road model. Based on the ascertained at least one probability value, optimal parameter values of the road model are ascertained, and based on this a lane-accurate road map is produced.