Abstract: To track the path of moving objects without using object-identifying information, e.g. GPS information of the object or other individual identifiers by means which an object can be basically identified, or if the objects continue to change their respective identity, it is proposed how a statement can be made about the successful tracking with respect to at least some of the object group along the tracking route on the basis of the acquisition of information, taking place along a tracking route repeatedly with non-object-identifying parameter data which is emitted by the moving objects, at regular time intervals, by object-group-specific considerations of the acquired parameter data, of group-specific data profiles, acquired from these considerations, and a data profile similarity comparison, and tracking information is generated, and otherwise no such statement is possible and the generation of the tracking information does not occur.

Abstract: In order, when tracking moving objects, to be able to track the path of the objects without using object-identifying information, e.g.

Abstract: A method for geographic region detection of traffic infrastructure via a receiver disposed in the region of the traffic infrastructure for a detection region of the receive unit, wherein status data of vehicles is communicated by the vehicles several times to the receive unit via wireless communication during the period in which vehicles pass through the detection region of the receiver, the receiver, or a processor connected to the receive unit, computes a vector for each vehicle, where the vector extends from a first position of the vehicle to a second position of the vehicle, and the receiver or the processor determines directions of travel of the vehicles and the geographic location of roadways and/or lanes of the roadways of the traffic infrastructure in the detection region from the vectors of all the vehicles.

Abstract: A method for communicating based on an ad hoc-type motor vehicle communication system, in which transportation users communicate with one another and/or transportation users and the transportation infrastructure communicate, includes determining the valid directions of travel independently based on messages transmitted by transportation users and determining travel in the wrong direction based on these messages. Corresponding further messages may be transmitted in response to the hazardous situation. A transportation infrastructure device and to a transportation user device may implement the method.

Abstract: A method for geographic region detection of traffic infrastructure via a receiver disposed in the region of the traffic infrastructure for a detection region of the receive unit, wherein status data of vehicles is communicated by the vehicles several times to the receive unit via wireless communication during the period in which vehicles pass through the detection region of the receiver, the receiver, or a processer connected to the receive unit, computes a vector for each vehicle, where the vector extends from a first position of the vehicle to a second position of the vehicle, and the receiver or the processer determines directions of travel of the vehicles and the geographic location of roadways and/or lanes of the roadways of the traffic infrastructure in the detection region from the vectors of all the vehicles.

Abstract: A method for communicating based on an ad hoc-type motor vehicle communication system, in which transportation users communicate with one another and/or transportation users and the transportation infrastructure communicate, includes determining the valid directions of travel independently based on messages transmitted by transportation users and determining travel in the wrong direction based on these messages. Corresponding further messages may be transmitted in response to the hazardous situation. A transportation infrastructure device and to a transportation user device may implement the method.