Disclosed is a method of traffic congestion estimation including a speed detection step of detecting speed of a vehicle in a predetermined period of time and outputting the detection result; a frequency analysis step of analyzing a frequency of the result of the speed detection and outputting the power spectrum; a slope detection step of detecting a slope of a power spectrum and outputting the detection result; a time variation calculation step of calculating time variation of the slope and outputting the calculation result; and a traffic congestion estimation step of estimating occurrence of traffic congestion from the calculation result of the time variation of the slope and outputting the estimation result.
Method of traffic congestion estimation
2016-09-20
Patent
Elektronische Ressource
Englisch
Europäisches Patentamt | 2022
|TRAFFIC CONGESTION PREDICTION DEVICE AND TRAFFIC CONGESTION PREDICTION METHOD
Europäisches Patentamt | 2017
|Traffic congestion prediction method and traffic congestion prediction device
Europäisches Patentamt | 2016
|