DRIVE ASSIST FORMULATION APPARATUS AND DRIVE ASSIST FORMULATION METHOD

A drive assist formulation apparatus according to the present disclosure includes: a normal-accuracy node information acquisition unit acquiring at least one piece of normal-accuracy node information in a travel route of a subject vehicle calculated using a normal-accuracy map; a high-accuracy map acquisition unit acquiring a high-accuracy map; an association determination unit determining whether or not the normal-accuracy position is associated with the high-accuracy node or the high-accuracy link based on the normal-accuracy node information and association information indicating a correspondence relationship between the normal-accuracy map and the high-accuracy map; a travel determination unit determining whether or not the subject vehicle travels a high-accuracy map road based on a determination result of the association determination unit; and a drive assist formulation unit formulating a drive assist of the subject vehicle using the high-accuracy map when the travel determination unit determines that the subject vehicle travels the high-accuracy map road.