Movement guidance device and movement guidance method

A movement guidance method which outputs at least one of a predicted arrival time at which a mobile object is predicted to arrive at a destination and a movement time necessary until the mobile object arrives at the destination, the movement guidance method comprising:

• calculating a first prediction error range of a first predicted arrival time in a first recommended route to the destination;
• calculating a second prediction error range of a second predicted arrival time in a second recommended route, which is a route to the destination and includes one to a plurality of routes different from the first recommended route, at a point where the mobile object is near an intersection or a branch road where the second recommended route is branched from the first recommended route;
• and
• outputting to a display, in response to the second prediction error range beginning before a target arrival time of a user of the mobile object, the first prediction error range and the second prediction error range;
• and
• outputting to a display, in response to the second prediction error range beginning at the same time or after the target arrival time, the first prediction error range such that the second predetermined error range is not displayed.

A movement guidance device that is configured to output at least one of a predicted arrival time at which a mobile object is predicted to arrive at a destination and a movement time necessary until the mobile object arrives at the destination, the movement guidance device comprising:

• a processor configured to:
• calculate a first prediction error range of a first predicted movement time in a first recommended route to the destination;
• calculate a second prediction error range of a second predicted movement time in a second recommended route, which is a route to the destination and is different from the first recommended route, at a point where the mobile object is near an intersection or a branch road where the second recommended route is branched from the first recommended route;
• output to a display, in response to a time, calculated by adding the second prediction error range to a first movement time of the mobile object, beginning before a target arrival time of a user of the mobile object, the first prediction error range and the second prediction error range;
• and
• output to a display, in response to the time, calculated by adding the second prediction error range to the first movement time of the mobile object, beginning at the same time or after the target arrival time, the first prediction error range such that the second predetermined error range is not displayed.