To provide a congestion detector capable of accurately detecting congestion.SOLUTION: A congestion detector includes a processor having hardware, and identifies one vehicle form a plurality of vehicles and determines that congestion has occurred at a point where the vehicle is identified when the processor detects the plurality of vehicles within a predetermined distance where the speed of the vehicle after the hazard lamp is turned on is slower than before the hazard lamp is turned on and the duration of the hazard lamp lighting is less than a predetermined time.SELECTED DRAWING: Figure 2

    【課題】渋滞の発生を精度良く検出することができる渋滞検出装置を提供すること。【解決手段】渋滞検出装置は、ハードウェアを有するプロセッサを備え、プロセッサが、ハザードランプの点灯前の車速よりもハザードランプの点灯後の車速が遅く、かつハザードランプの点灯継続時間が所定時間未満である車両を、所定距離内で複数台検出した場合、その中から一台の車両を特定し、特定した車両の地点について渋滞が発生したと判定する。【選択図】図2


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    Title :

    CONGESTION DETECTOR


    Additional title:

    渋滞検出装置


    Contributors:

    Publication date :

    2021-08-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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