Abstract: The disclosure relates to a device for monitoring the state of roads, infrastructure and traffic, including a plurality of sensor elements, wherein the sensor elements are arranged along at least one section of a road. The sensor elements each have a housing with an underside and an upper side. Furthermore, at least one sensor is provided for detecting a measured parameter, wherein the sensor is connected to an evaluation device arranged in the housing, in particular for autonomous evaluation of the measured parameter is acquired. The evaluation device is designed in such a way that an event and/or a state can be determined from the detected measured parameter.