Navigation device, recording medium storing navigation program, and navigation system

A navigation system comprising:

• a navigation device;
• and
• a terminal device that has a display that displays route guidance information output from the navigation device, wherein
• the navigation device includes:
• a memory;
• and
• a processor that is configured to:
• acquire route information relating to a planned route to be traveled by a second vehicle of a user having a friendly relationship with a user of a first vehicle,
• search for a guided route based on a current position of the first vehicle and the route information, such that at least one of the first vehicle or the second vehicle heads toward a common location, and
• output route guidance information relating to the guided route to at least one of the first vehicle or the second vehicle,
• wherein the processor is further configured to search for the guided route such that the first vehicle and the second vehicle pass by each other, and
• wherein in a case in which an estimated time until the first vehicle and the second vehicle pass by each other is a predetermined threshold value or less, and at least one vehicle of the first vehicle or the second vehicle is traveling in a lane of a plurality of traffic lanes, the processor is further configured to output a lane instruction signal instructing travel in a lane closest to an oncoming traffic lane of the plurality of traffic lanes.

A non-transitory recording medium storing a navigation program that is executable by a computer to perform a process, the process comprising:

• acquiring route information relating to a planned route to be traveled by a second vehicle of a user having a friendly relationship with a user of a first vehicle,
• searching for a guided route based on a current position of the first vehicle and the route information, such that at least one of the first vehicle or the second vehicle heads toward a common location, and
• outputting route guidance information relating to the guided route to at least one of the first vehicle or the second vehicle,
• wherein the process further comprises searching for the guided route such that the first vehicle and the second vehicle pass by each other, and
• wherein in a case in which an estimated time until the first vehicle and the second vehicle pass by each other is a predetermined threshold value or less, and at least one vehicle of the first vehicle or the second vehicle is traveling in a lane of a plurality of traffic lanes, the process further comprises outputting a lane instruction signal instructing travel in a lane closest to an oncoming traffic lane of the plurality of traffic lanes.