Driving assistance method, and driving assistance device, automatic driving control device, vehicle, and program using same

A driving assistance device comprising:

• a determination unit that determines whether a driving behavior of a vehicle is performed by automatic driving control or manual driving control;
• a generation unit that generates presentation instructing information for presenting the driving behavior performed by the automatic driving control externally from the vehicle when the determination unit determines that the driving behavior of the vehicle is performed by the automatic driving control, generates presentation instructing information for presenting the driving behavior performed by the manual driving control externally from the vehicle when the determination unit determines that the driving behavior of the vehicle is performed by the manual driving control, and generates presentation instructing information for presenting switching externally from the vehicle when the determination unit determines that the subject of the driving behavior of the vehicle is switched between the manual driving control and the automatic driving control;
• and
• an output unit that outputs the presentation instructing information generated by the generation unit.

A driving assistance method comprising:

• determining a subject of a driving behavior of a vehicle based on automatic driving control or manual driving control for each the driving behavior;
• generating presentation instructing information for presenting the driving behavior performed by the automatic driving control externally from the vehicle when the determination is made that the driving behavior of the vehicle is performed by the automatic driving control, and generating presentation instructing information for presenting the driving behavior performed by the manual driving control externally from the vehicle when the determination is made that the driving behavior of the vehicle is performed by the manual driving control;
• and
• outputting the presentation instructing information having been generated,
• wherein when the subjects of a plurality of the driving behaviors are identical to each other, synchronizing presentation patterns of a plurality of pieces of the presentation instructing information with each other.