Road traveling time calculating and traffic road condition judging method and road traveling time calculating and traffic road condition judging device

Abstract

The invention discloses a road segment traveling time calculating and traffic road condition judging method and a road segment traveling time calculating and traffic road condition judging device. The road segment traveling time calculating and traffic road condition judging method includes the following steps. License plate data of small vehicles between an upstream intersection entrance road segment and a downstream intersection exit road segment of a road segment within a set time period before the current time are collected. License plate matching is performed on the license plate data collected from the upstream intersection and the downstream intersection of the road segment. Driving time and driving speeds of the vehicles which pass through the road segment and matched with the license plates are confirmed. Abnormal speed screening is performed based on confirmed driving speeds and sample vehicles are confirmed. According to driving time spent by the sample vehicles in passing through the road segment and by combining with a time period where the current time exists, traveling time statistics of the road segment are calculated out. According to the road segment traveling time calculating method and the road segment traveling time calculating and traffic road condition judging device, only license data of small vehicles are collected, license plate matching is performed on the license plate data and abnormal speed data screening is performed so that traveling time of a segment of an urban road can be calculated out accurately by combing with the time period where the current time exists.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a method and device for counting road section travel time and judging traffic conditions. Background technique [0002] With the rapid advancement of urbanization, people's living standards are improving day by day, and the number of urban motor vehicles is increasing rapidly, which brings about the increasingly serious phenomenon of urban road traffic congestion. Automatic and timely judgment of urban road traffic conditions can provide travelers with information on whether urban roads are congested, help travelers travel smoothly, reduce urban traffic congestion, and improve the comprehensive management level of urban road traffic. [0003] At present, urban road traffic conditions are mainly judged according to the travel time of the road section: the average driving speed of the road section is calculated according to the travel time of the road section; The traffic...

AI Technical Summary

Problems solved by technology

[0007] The inventors of the present invention have found that this method is not accurate enough when calculating the average driving time of road sections; Screen abnormal data on license plate data

If the captured license plate data includes the license plate data of vehicles that stop temporarily or refuel on this road section, the average driving time of the road section calculated by the system will not be accurate enough, resulting in inaccurate judgment of urban traffic conditions

[0008] To sum up, for urban roads, the road section travel time calculation method of the prior art is used, and the calculated road section travel time is not accurate enough, resulting in that the accuracy of the traffic conditions determined based on the road section travel time is not high; therefore, it is necessary to provide A road segment travel time calculation and traffic road condition determination method capable of more accurately determining traffic conditions

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