Traffic bottleneck identification method in urban traffic network

Abstract

The invention discloses a traffic bottleneck identification method in an urban traffic network, and relates to the technical field of traffic information control, and the method comprises the following steps: 1, constructing virtual road network information; 2, collecting traffic flow data in the virtual road network; 3, carrying out fusion processing on the collected data; 4, generating a virtualroad network PA back-stepping model by using a PA back-stepping technology; 5, establishing a virtual road network database based on the original road network database; 6, calculating the data in thevirtual road network database; 7, calculating and mining according to the data to obtain bottleneck points, and diagnosing real bottleneck points; 8, outputting reasons of the bottleneck points. According to the method, the road traffic flow information is monitored through the architecture virtual nodes and the virtual road sections, the real-time model is generated through the PA back-steppingtechnology, the road traffic flow information is simulated through the model, the bottleneck points are accurately deduced, and more accurate and scientific suggestions are provided for traffic jam treatment and optimization.

Description

technical field [0001] The invention relates to the technical field of traffic information control, in particular to a traffic bottleneck identification method in an urban traffic network. Background technique [0002] Due to the complexity of nodes and roads in the topology of the urban traffic network, there are very complex interactions within and between nodes, and network operation involves the relationship between people-vehicles-road-environment, as well as policy management, laws and regulations, etc. As a result, the urban traffic network is highly complex. In order to fundamentally solve the urban traffic problem and realize the sustainable development of the city, it is necessary to explain the formation of the urban traffic problem in essence, and it is necessary to deeply study the evolution of the complex network of the urban traffic network. law. [0003] With the increasing urban traffic congestion, the traffic flow of many nodes is often in an oversaturated...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of the popularization of car navigation and mobile phone terminal navigation in the prior art and the perfect layout of detectors on the road, so that a large amount of real-time traffic data can be obtained, and the traffic conditions of the road can be reflected, and the road traffic cannot be fed back in time. Traffic flow information, the shortcomings of real-time monitoring of road traffic flow are not easy, and a traffic bottleneck identification method in urban traffic network is proposed