To provide a congestion state specifying device that can specify, when a line of vehicles exists on a single-lane road, whether a vehicle can pass beside the line of vehicles or the state corresponds to the congestion that obstructs travel.SOLUTION: A road extraction portion 11 of a congestion state specifying device 1 extracts a road whose lane in a traveling direction is single. A first vehicle extraction portion 12 extracts a first vehicle whose driving speed at a certain time is equal to or lower than a first speed in one direction of the extracted road. A provisional congestion section specifying portion 15 specifies a provisional congestion section on the road on the basis of the extracted first vehicle. A second vehicle extraction portion 17 extracts a second vehicle whose driving speed is equal to or higher than a second speed faster than the first speed and whose traveling direction is the same as the first vehicle in the provisional congestion section. A congestion state specifying portion 19 specifies the congestion state of the provisional congestion section on the basis of the result of extracting the second vehicle. For example, when the second vehicle does not exist in the provisional congestion section, it is determined that a vehicle can travel in the provisional congestion section.SELECTED DRAWING: Figure 2

    【課題】単線道路で、車列が存在していたとき、車列の横を通過できるか、それとも通行を阻害する渋滞に該当するかを特定できる渋滞状態特定装置を提供する。【解決手段】渋滞状態特定装置1の道路抽出部11は、進行方向の車線が1車線の道路を抽出し、第1の車両抽出部12は、抽出された道路の一方向において、ある時間の走行速度が第1の速度以下である第1の車両を抽出する。仮渋滞区間特定部15は、抽出した第1の車両に基づいて道路内に仮渋滞区間を特定する。第2の車両抽出部17は、仮渋滞区間において、走行速度が第1の速度より速い第2の速度以上で、かつ走行方向が第1の車両と同じである第2の車両を抽出する。渋滞状態特定部19は、第2の車両の抽出結果に基づき、仮渋滞区間の渋滞状態を特定する。例えば、仮渋滞区間に第2の車両が存在していないとき、仮渋滞区間は走行可能と判定する。【選択図】図2


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    Title :

    CONGESTION STATE SPECIFYING METHOD, CONGESTION STATE SPECIFYING DEVICE, AND COMPUTER PROGRAM


    Additional title:

    渋滞状態特定方法、渋滞状態特定装置及びコンピュータプログラム


    Contributors:

    Publication date :

    2020-01-16


    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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