Abstract: Provided is a navigation server or the like capable of improving a convenience for trip planning by a user of a navigation client. The user can designate, on the navi-client 2, a plurality of topics from among the plurality of topics TPX0(k) in the designated area ROI, as the primary designated topics TPX1(i) and further as the secondary designated topics TPX2(j). Then, on the navi-client 2, the guide information can be output for guiding the plurality of POI(j) corresponding to the plurality of secondary designated topics TPX2(j) in the order which is basically defined in accordance with the correlation rule among the designated topics TPX2(j).

Abstract: A display device includes a traveling state recognition unit configured to recognize a traveling state of a vehicle, an intervening driving manipulation recognition unit configured to recognize intervention in a driving manipulation by a driver of the vehicle during autonomous driving control, a trajectory acquisition unit configured to acquire a trajectory of the autonomous driving control, a first calculation unit configured to calculate a first path of the vehicle if an amount of intervention in the driving manipulation is maintained, a second calculation unit configured to calculate a second path of the vehicle due to the autonomous driving control based on the trajectory; and a display control unit configured to cause a first pointer showing the first path and a second pointer showing the second path to be displayed on an in-vehicle display when the intervention in the driving manipulation during the autonomous driving control is recognized.

Abstract: Provided is a navigation server or the like capable of improving a convenience for trip planning by a user of a navigation client. The user can designate, on the navi-client 2, a plurality of topics from among the plurality of topics TPX0(k) in the designated area ROI, as the primary designated topics TPX1(i) and further as the secondary designated topics TPX2(j). Then, on the navi-client 2, the guide information can be output for guiding the plurality of POI(j) corresponding to the plurality of secondary designated topics TPX2(j) in the order which is basically defined in accordance with the correlation rule among the designated topics TPX2(j).