Abstract: A hazardous behavior determining unit (3) determines a vehicle that is conducting or is likely to conduct hazardous driving from among one or more vehicles around a host vehicle and a type of the hazardous driving using information indicating states of the host vehicle and the vehicles and a surrounding situation and behavior information stored in an onboard database (2). A registered vehicle identifying unit (5) identifies a vehicle that corresponds to hazardous vehicle information stored in the onboard database (2) by collating numbers of a license plate detected by a number detecting unit (4) with numbers stored in the onboard database (2). A hazard predicting unit (6) predicts a risk to the host vehicle using the determination result from the hazardous behavior determining unit (3) and the identification result from the registered vehicle identifying unit (5).

Abstract: A hazardous behavior determining unit (3) determines a vehicle that is conducting or is likely to conduct hazardous driving from among one or more vehicles around a host vehicle and a type of the hazardous driving using information indicating states of the host vehicle and the vehicles and a surrounding situation and behavior information stored in an onboard database (2). A registered vehicle identifying unit (5) identifies a vehicle that corresponds to hazardous vehicle information stored in the onboard database (2) by collating numbers of a license plate detected by a number detecting unit (4) with numbers stored in the onboard database (2). A hazard predicting unit (6) predicts a risk to the host vehicle using the determination result from the hazardous behavior determining unit (3) and the identification result from the registered vehicle identifying unit (5).

Abstract: A parked-vehicle detecting unit (12c) detects a parked vehicle in a parking lot, using an image of the parking lot viewed from above. An empty space detecting unit (12d) detects, as an empty space, an area in the parking lot that does not have the parked vehicle detected by the parked-vehicle detecting unit (12c) and that is determined to be larger than a target vehicle to be guided. Then, an information generating unit (12g) generates notification information indicating the empty space detected by the empty space detecting unit (12d).