To provide a congestion prediction device and a congestion prediction method therefor capable of suppressing a reduction in prediction accuracy related to congestion, and suppressing a processing load.SOLUTION: A congestion prediction device comprises: first and second calculation parts 51e, 51f for calculating a first inter-vehicle distance to a front vehicle on an own traffic lane and a second inter-vehicle distance to a front vehicle on a passing lane on the basis of image information from an on-vehicle camera; a determination part 51g for determining whether or not predetermined linearity exists between the second inter-vehicle distance calculated in the previous time or before the previous time and the first inter-vehicle distance to be calculated at present time or after the present time when the first or second inter-vehicle distance changes by a predetermined value or more in comparison with a value of the previous time or before the previous time; an event determination part 51b for determining that a passing event has occurred when it is determined that the predetermined linearity exists by the determination part 51g; and a congestion prediction part 51h for predicting occurrence of congestion on the basis of a frequency of the passing event determined by the event determination part 51b.SELECTED DRAWING: Figure 2
【課題】渋滞に関する予測精度の低下を抑え、且つ、処理負荷についても抑えることができる渋滞予測装置及びその渋滞予測方法を提供する。【解決手段】渋滞予測装置は、車載カメラからの画像情報に基づいて、自車線における前方車両までの第1車間距離、及び、追越車線における前方車両までの第2車間距離を求める第1及び第2算出部51e,51fと、第1又は第2車間距離が前回以前の値と比較して所定値以上変化した場合に、前回以前に算出されていた第2車間距離と、今回以後に算出される前記第1車間距離との間に所定の直線性があるかを判断する判断部51gと、判断部51gにより所定の直線性があると判断された場合に、追越イベントが発生したと判断するイベント判断部51bと、イベント判断部51bにより判断された追越イベントの頻度に基づいて、渋滞の発生を予測する渋滞予測部51hとを備える。【選択図】図2
CONGESTION PREDICTION DEVICE AND CONGESTION PREDICTION METHOD THEREFOR
渋滞予測装置及びその渋滞予測方法
2019-01-31
Patent
Electronic Resource
Japanese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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