MOUNTING-ON-VEHICLE EQUIPMENT, OUTPUT PROPRIETY JUDGMENT METHOD, ROAD COMMUNICATION SYSTEM AND PROGRAM

摘要

An utterable mounting-on-vehicle equipment (200) (mounting-on-vehicle equipment) is mounted on a vehicle running on a road and provided with a communication processing unit for receiving information from a road side wireless device (100) set on a road side and an information output unit for outputting the information received by the communication processing unit. The utterable mounting-on-vehicle equipment (200) further includes a control unit which judges whether the received information is to be provided to the same direction or a different direction as the vehicle traveling direction in accordance with the judgment of whether or not directional information detected by a direction identification means (257) provided at the road is consistent with directional information contained in the received information and which determines whether or not to output the received information. Thus, mounting-on-vehicle equipment, an output propriety method, a road communication system, and a program are provided that are not made to output traffic information or the like which is not directed to the own vehicle.