To recognize a road surface situation before skid occurs on a snowy road and the like.SOLUTION: A road surface evaluation device 10 comprises: an information acquisition unit 111 that acquires travel information including positional information indicating a travel position of each of a plurality of vehicles traveling on a road, and acceleration information indicating an acceleration of each of the plurality of vehicles; a storage unit 120 that stores first road surface information indicating a surface roughness of a road during a first predetermined period; a calculation unit 112 that generates second road surface information indicating a surface roughness of a road in a second predetermined period subsequent to the first predetermined period based on travel information of the plurality of vehicles acquired by the information acquisition unit 111 in the second predetermined period; a determination unit 113 that determines whether a road has a specific road surface property based on the second road surface information generated by the calculation unit 112, and that determines whether or not a snow accumulation has occurred on the road based on a difference between the first road surface information and the second road surface information if the determination unit determines that the road has the specific road surface property; and an output unit 114 that outputs snow accumulation information including a determination result from the determination unit 113.SELECTED DRAWING: Figure 4
【課題】雪道等でスリップが発生する前に路面状況を認識する。【解決手段】路面評価装置10は、道路を走行中の複数の車両のそれぞれの、走行位置を示す位置情報と加速度を示す加速度情報とを含む走行情報を取得する情報取得部111と、第1所定期間における道路の路面の粗さを示す第1路面情報を記憶する記憶部120と、第1所定期間よりも後の第2所定期間に情報取得部111により取得された複数の車両の走行情報に基づいて第2所定期間における路面の粗さを示す第2路面情報を生成する算出部112と、算出部112により生成された第2路面情報に基づいて、道路が特定の路面性状を有するか否かを判定するとともに、道路が特定の路面性状を有すると判定すると、第1路面情報と第2路面情報との差分に基づいて、道路において積雪が発生したか否かを判定する判定部113と、判定部113の判定結果を含む積雪情報を出力する出力部114と、を備える。【選択図】図4
ROAD SURFACE EVALUATION DEVICE
路面評価装置
13.03.2025
Patent
Elektronische Ressource
Japanisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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