To make it possible to fully enhance the precision in traffic light control for improving a state involving traffic jam on a right turn lane in the event that the traffic jam has occurred on the right turn lane, and fully enhance the precision in traffic light control for improving a state involving pedestrians waiting for traverse or congestion of vehicles trying to turn left in the event that the pedestrians waiting for traverse or congestion of vehicles trying to turn left has occurred.SOLUTION: A traffic light controller is configured to: acquire, by performing image analysis processing on a camera image, traffic state information including information concerning a position of a trailing vehicle in a string of vehicles congested in a monitoring area; and perform traffic light control based on the traffic state information. The traffic light controller is further configured to: acquire, by performing the image analysis processing on the camera image, information including information concerning a passing state of vehicles intending to turn left in a monitoring area targeting the vehicles intending to turn left, information concerning a passing state of traversing pedestrians in a motoring area targeting the traversing pedestrians, and information concerning a standby state of pedestrians who wait for traversing in a monitoring area targeting the pedestrians who wait for traversing; and perform traffic light control based on the traffic state information.SELECTED DRAWING: Figure 6
【課題】右折車線に渋滞が発生している場合に、その右折車線の渋滞を改善するための信号制御の精度を十分に高めることができ、また、歩行者の横断待ちや左折車両の滞留が発生している場合に、その歩行者の横断待ちや左折車両の滞留を改善するための信号制御の精度を十分に高めることができるようにする。【解決手段】カメラ画像に対する画像解析処理により、監視エリアにおける渋滞車列の末尾の位置に関する情報を含む交通状況情報を取得し、その交通状況情報に基づき信号制御を行う。また、カメラ画像に対する画像解析処理により、左折車両を対象とした監視エリアにおける左折車両の通行状況に関する情報と、横断歩行者を対象とした監視エリアにおける横断歩行者の通行状況に関する情報と、横断待ち歩行者を対象とした監視エリアにおける横断待ち歩行者の待機状況に関する情報とを含む交通状況情報を取得し、その交通状況情報に基づき信号制御を行う。【選択図】図6
TRAFFIC LIGHT CONTROLLER
交通信号機制御装置
2023-07-05
Patent
Elektronische Ressource
Japanisch
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