NAVIGATION DEVICE, ROUTE GUIDANCE CONTROL METHOD IN NAVIGATION DEVICE, AND PROGRAM

To provide a "navigation device" for not outputting a route guidance while a vehicle is travelling in an automatic driving mode. A navigation device mounted on a vehicle travelling in any driving mode out of an automatic driving mode for travelling irrespective of driver's driving operations and a normal driving mode for travelling according to driver's driving operations includes a driving mode determination unit (S11, S 14) for determining whether a driving mode of the vehicle is the automatic driving mode or the normal driving mode, and a route guidance stop control unit (S 15) for, when the driving mode determination unit determines that a driving mode of the vehicle is the automatic driving mode, stopping a route guidance to be made while the vehicle is travelling in the normal driving mode.