Guide generation method and guide system

A guide generation system comprising a guide information generation device and a guide output device, wherein

• the guide information generation device includes
• a guide point determination unit configured to acquire, from the guide output device, vehicle information including a current position and an appearance feature of a vehicle, and determine a guide point located on a scheduled traveling route of the vehicle, based on the vehicle information and map information,
• a mark vehicle determination unit configured to determine a mark vehicle, among vehicles traveling around a target vehicle, from candidate vehicles that make a turn at the same guide point in the same direction as the guide point and a direction of the target vehicle, and
• a guide information generation unit configured to generate guide information that includes the appearance feature of the mark vehicle and a positional relationship between the target vehicle and the mark vehicle, and that guides a turn at the guide point with the mark vehicle as a marker, and
• the guide output device includes
• a vehicle information generation unit configured to generate the vehicle information,
• a communication unit configured to transmit the vehicle information to the guide information generation device, and
• a guide unit configured to provide a guide of the target vehicle by using the guide information acquired from the guide information generation device.