To highly accurately predict a traffic state on a road with a complicated structure connected to multiple roads.SOLUTION: A traffic state prediction device includes a prior probability calculation section and a conditional probability calculation section. The prior probability calculation section calculates a first probability being a probability of occurrence of a predetermined traffic state on a first road and a second probability being a probability of occurrence of the predetermined traffic state on a second road connected to the first road, based on past traffic states. The conditional probability calculation section calculates a conditional probability of occurrence of the predetermined traffic state on the first road with occurrence of the predetermined traffic state on the second road as a condition, based on the first probability and the second probability.SELECTED DRAWING: Figure 2
【課題】複数の道路と連結する複雑な構造の道路における交通状況を、高精度に予測する。【解決手段】実施形態の交通状況予測装置は、事前確率算出部と、条件付確率算出部と、を備える。事前確率算出部は、過去の交通状況に基づいて、第1の道路において所定の交通状況が発生する確率である第1の確率と、第1の道路と連結する第2の道路において所定の交通状況が発生する確率である第2の確率とを算出する。条件付確率算出部は、第1の確率および第2の確率に基づいて、第2の道路における所定の交通状況の発生を条件として第1の道路において所定の交通状況が発生する条件付確率を算出する。【選択図】図2
TRAFFIC STATE PREDICTION DEVICE AND TRAFFIC STATE PREDICTION METHOD
交通状況予測装置、および交通状況予測方法
2020-07-02
Patent
Electronic Resource
Japanese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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