TRAFFIC LANE PRIORITY SETTING DEVICE, SETTING METHOD OF TRAFFIC LANE PRIORITY AND COMPUTER PROGRAM FOR SETTING TRAFFIC LANE PRIORITY

To provide a traffic lane priority setting device which can set traffic lane priority without causing discomfort imparted to a driver.SOLUTION: A traffic lane priority setting device comprises: a detection part which detects a plurality of traffic lanes where a vehicle can advance from a traffic lane the vehicle travels on without striding across a lane division line; and a setting part in which at least one lane priority of the plurality of traffic lanes is set higher than that of traffic lanes except at least one traffic lane of the plurality of traffic lanes, when the plurality of traffic lanes belong to the same road, at least one traffic lane of the plurality of traffic lanes is adjacent through the lane division line to any of the traffic lanes other than the plurality of traffic lanes belonging to the road, and a traffic lane other than the one traffic lane of the plurality of traffic lanes is not adjacent to any traffic lane other than the plurality of traffic lanes belonging to the road.SELECTED DRAWING: Figure 6 【課題】運転者に違和感を生じさせないように車線の優先度を設定することができる車線優先度設定装置を提供する。【解決手段】車線優先度設定装置は、車両が走行している車線から車線区画線をまたぐごとなく車両が進むことのできる複数の車線を検出する検出部と、複数の車線が同一の道路に含まれ、かつ、複数の車線のうち少なくとも１つが道路に含まれる複数の車線以外のいずれかの車線と車線区画線を介して隣接し、複数の車線のうち少なくとも１つの車線以外の車線が道路に含まれる複数の車線以外のいずれの車線とも車線区画線を介して隣接しない場合、複数の車線のうち少なくとも１つの車線の優先度を、複数の車線のうち少なくとも１つの車線以外の車線の優先度よりも高く設定する設定部と、を備える。【選択図】図６