Abstract: With reference to a message table associating a plurality of messages to be notified to a driver of a vehicle with a first condition, a second condition, last notification time of the message, and renotification requirement, a notification device selects messages associated with an identified first condition corresponding to a situation of surroundings of a vehicle or a state of a driver, selects, from among the messages associated with the identified first condition, messages associated with an identified second condition corresponding to a state of the driver, specifies, from among the messages associated with the identified second condition, a message without a record of last notification time or a message with a record of last notification time and with a renotification requirement requiring a renotification, and notifies the specified message to the driver through an output device.

Abstract: A notification device detecting a predetermined action of a driver of a vehicle in which travel is controlled by an autonomous driving system from a driver image including a face region representing a face of the driver and outputting a confidence rate indicating a certainty in the detection, specifying a message for inhibiting a control ending action which possibly follows the detected action and corresponds to an ending condition of control by the autonomous driving system, and notifying the driver of the specified message through an output device when an effectiveness level is higher than a predetermined notification threshold, the effectiveness level calculated by multiplying the confidence rate by a first probability of the control ending action being inhibited when notifying the driver of the specified message or by a second probability of the control ending action being performed when not notifying the driver of the specified message.

Abstract: A position displacing device has a processor configured to set a recommendation range of the seat position, capable of displacing the seat position to a manual control position representing the seat position when a driver is operating a vehicle manually within a predetermined time, based on the manual control position, set an intermediate position between the manual control position and an automatic control position set within the recommendation range, and determine whether a level to which the driver is contributing to driving is equal to or below a predetermined reference threshold based on information that describes physical condition of the driver, wherein the seat position is displaced from the automatic control position to the intermediate position when the seat position is at the automatic control position and it is determined that the level to which the driver is contributing to driving is equal to or below the reference threshold.