Highway road section traffic state discrimination method based on charging data

Abstract

The invention relates to a highway road section traffic state discrimination method based on charging data. The method comprises the steps of: 1, dividing basic road sections of a highway; 2, processing highway charging data and obtaining a road section traffic volume curve; 3, comparing the similarity of the curves of all road section flows changing with time, and obtaining a similarity coefficient; 4, according to the road section similarity coefficient, dividing the road sections into categories of a preset number; and 5, discriminating the traffic states of each kind of road sections after the classification. By adopting the method, the traffic states of different road sections of the highway can be effectively judged.

Description

technical field [0001] The invention relates to the field of traffic state detection, and relates to a method for identifying the traffic state of highway section by using a single index. Background technique [0002] With the continuous development of our country's economy, the number of cars keeps increasing, and road traffic, especially highway traffic, has become faster and more accessible as a mode of transportation, and people's concept of timeliness has also undergone profound changes. People pay more and more attention to the quality and efficiency of travel. [0003] Expressway toll data can reflect the time and space running status of vehicles on the expressway. It can not only fundamentally understand the overall state, mode and characteristics of the traffic road network, but also estimate the traffic volume of the section of the expressway section, so as to fully grasp the Temporal and spatial variation of road network traffic flow. The cross-section traffic v...

AI Technical Summary

Problems solved by technology

The patent document "Traffic State Recognition Method Based on Trajectory Matching of Expressway Toll Data" with the application number 201110042176.X proposes to obtain the travel time and traffic flow between sites on the whole website by processing toll data, and to distinguish the traffic state through fuzzy clustering. However, this method focuses on the data processing level, and the result of the discrimination represents the traffic state between two stations, but cannot represent the state of a specific location; the patent document with application number 201310660011.8 "Calculation method of travel speed of expressway section based on ETC toll data" In the paper, it is proposed to calculate the travel speed of highway sections based on ETC toll data, but there is no analysis of the traffic status of the section, which cannot reflect the operation status of the road network; the patent document with application number 201410604146.7 "Recognition of Abnormal Traffic Status Based on Fusion of Vehicle Detector and Toll Data Method and System" proposes a method for identifying abnormal traffic conditions based on the data collected by vehicle detectors and road toll data. It uses algorithmic voting fusion to identify road abnormal state data, but this evaluation method is only applicable to installations with The road section of the vehicle detector, not applicable to other road sections

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