ROUTE GUIDANCE DEVICE, ROUTE GUIDANCE METHOD, AND ROUTE GUIDANCE PROGRAM

摘要

[Object] An object is to provide a route guidance device, a route guidance method, and a route guidance program that are capable of optimizing route guidance and improving users' convenience when attaching or detaching the route guidance device with respect to an in-vehicle device. [Solving Means] A route guidance device 10 being configured so as to be freely attachable and detachable with respect to an in-vehicle device includes: a route acquiring part 21 that acquires a vehicle route calculated based on vehicle map data and acquires a pedestrian route calculated based on the pedestrian map data; and a display 13 that outputs the vehicle route and the pedestrian route acquired by the route acquiring part 21. The route acquiring part 21, when the route guidance device 10 has been detached from the in-vehicle device 1, acquires a pedestrian route calculated based on a destination having been set to acquire the vehicle route before detachment, or when the route guidance device 10 has been attached to the in-vehicle device 1, acquires a vehicle route calculated based on a destination having been set to acquire the pedestrian route before attachment.