A processing device for improved object identification comprising: an object identification unit configured to generate, based on data measured by and received from a plurality of sensors, object identification information indicative of a state of an object, wherein the object is a vehicle moving on a road, and wherein the sensors are set on roadsides of the road and sense the object from a first time to a second time; and a reliability degree determination unit configured to determine a reliability degree of the object identification information using at least one of individual information about the sensors, environmental information obtained when the sensors have performed measurement, and time information that is information on a time at which the sensors have performed measurement, characterized in that the processing device is configured to predict a moving direction of the object using sensor information obtained by using twc first sensors (1-1, 1-2) of the plurality of sensors measuring a number of times; the processing device is further configured to predict -a that the object exists in a range of the road at the second time using sensor information obtained by using two first sensors (1-1, 1-2); and if a second sensor of the plurality of sensors located at the predicted range of the road at the second time is not hindered from measuring the object at the second time, the processing device is configured to use measurement data from the second sensor to generate the object identification information and determine the reliability degree, and otherwise the processing device is configured to use measurement data from one of the first sensors (1-1, 1-2) to generate the object identification information and determine the reliability degree. an object identification unit configured to generate, based on data measured by and received from a plurality of sensors, object identification information indicative of a state of an object, wherein the object is a vehicle moving on a road, and wherein the sensors are set on roadsides of the road and sense the object from a first time to a second time; and a reliability degree determination unit configured to determine a reliability degree of the object identification information using at least one of individual information about the sensors, environmental information obtained when the sensors have performed measurement, and time information that is information on a time at which the sensors have performed measurement, characterized in that the processing device is configured to predict a moving direction of the object using sensor information obtained by using twc first sensors (1-1, 1-2) of the plurality of sensors measuring a number of times; the processing device is further configured to predict -a that the object exists in a range of the road at the second time using sensor information obtained by using two first sensors (1-1, 1-2); and if a second sensor of the plurality of sensors located at the predicted range of the road at the second time is not hindered from measuring the object at the second time, the processing device is configured to use measurement data from the second sensor to generate the object identification information and determine the reliability degree, and otherwise the processing device is configured to use measurement data from one of the first sensors (1-1, 1-2) to generate the object identification information and determine the reliability degree.