PROBLEM TO BE SOLVED: To improve estimation accuracy of traffic information based on probe information.SOLUTION: A traffic information estimation device has an acquisition part, a calculation part and an estimation part. The acquisition part acquires location information indicating a travel location of a probe vehicle and probe information including a travel speed of the probe vehicle, a preceding vehicle inter-vehicle distance which is an inter-vehicle distance between the probe vehicle and a preceding vehicle and a relative speed of an adjacent lane vehicle travelling through a lane adjacent to the own vehicle lane through which the probe vehicle travels. The calculation part calculates a reject determination value which becomes larger as the reliability of the probe information becomes lower on the basis of the travel speed, the preceding vehicle inter-vehicle distance and the relative speed and selects probe information excluding probe information whose calculated reject determination value reaches a prescribed threshold or higher. The estimation part estimates traffic information on a road at the travel location indicated by location information included in the probe information selected on the basis of the probe information selected.SELECTED DRAWING: Figure 3

    【課題】プローブ情報に基づく交通情報の推定精度を向上させる。【解決手段】実施形態の交通情報推定装置は、取得部と、算出部と、推定部と、を備える。取得部は、プローブ車両の走行位置を示す位置情報と、プローブ車両の走行速度と、プローブ車両と先行車両との車間距離である先行車両車間距離と、プローブ車両に対する、当該プローブ車両が走行する自車線に隣接する隣接車線を走行する隣接車線車両の相対速度と、を含むプローブ情報を取得する。算出部は、プローブ情報が含む走行速度、先行車両車間距離、および相対速度に基づいて、プローブ情報の信頼度が低くなるに従って大きくなるリジェクト判定値を算出し、当該算出したリジェクト判定値が所定の閾値以上のプローブ情報以外のプローブ情報を選択する。推定部は、選択したプローブ情報に基づいて、当該プローブ情報が含む位置情報が示す走行位置の道路の交通情報を推定する。【選択図】図3


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    Title :

    TRAFFIC INFORMATION ESTIMATION DEVICE AND TRAFFIC INFORMATION ESTIMATION METHOD


    Additional title:

    交通情報推定装置および交通情報推定方法


    Contributors:
    SUZUKI YOSHIHIKO (author) / UENO HIDEKI (author) / WADA SUNAO (author) / OBA YOSHIKAZU (author) / SATO TOSHIO (author) / SAKAI HIROSHI (author)

    Publication date :

    2017-11-30


    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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