Map information correction device and map information correction system

A map information correction system comprising:

• a map information correction device that is mounted in a vehicle and corrects map information;
• and
• a map server that transmits and receives map information to and from the map information correction device,
• wherein each map information correction device includes:
• a first computer processing unit (CPU) configured to:
• hold the map information;
• estimate position information of the vehicle;
• acquire lane change information indicating whether or not the vehicle has changed a lane;
• acquire information on a dividing line type of a road and whether the road on which the vehicle is traveling is branched;
• generate correction information for correcting the map information based on the position information, the lane change information, and the information on the dividing line type;
• and
• transmit the correction information to the map server,
• wherein one or more map information correction devices are mounted in a plurality of vehicles, respectively, each of the one or more map information correction devices including the first CPU, the first CPU being further configured to collect a plurality of items of the correction information transmitted from the respective map information correction devices of the plurality of vehicles, and correct the map information using correction information at a same point from the plurality of items of correction information;
• and
• wherein the map server includes:
• a second computer processing unit (CPU) configured to
• store the map information;
• receive the correction information from the map information correction device;
• and
• correct the map information based on the correction information.