Road map information is stored in advance in the automated driving information storing unit 9, the road map information being necessary for selecting a travel route to a destination or changing the travel route if required and being necessary for travelling with automated driving along the determined travel route, such as road maps, lane information, and traffic rules such as regulation speeds and traffic signs. Further, a reference data file including data of images or shape features of various targets may be stored in the automated driving information storing unit 9, the reference data file being used for detecting and recognizing, as targets, vehicles such as automobiles and pedestrians existing around the own vehicle from the information obtained by the information input unit 8.