PROCÉDÉ PERMETTANT DE COMMANDER UN INDICATEUR DE DIRECTION ET DISPOSITIF PERMETTANT DE COMMANDER UN INDICATEUR DE DIRECTION

摘要

A direction indicator control unit (12) obtains a position of an entry road and a position of an exit road of a roundabout determined to be present on a presumed traveling route of a vehicle, and determines a necessity of directional indication when entering the roundabout in accordance with a relationship between the position of the entry road and the position of the exit road.