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A Hierarchical Sorting Method of Road Importance by Time in Urban Road Network

A technology of urban road network and sorting method, which is applied in the field of intelligent transportation, can solve the problems of low traffic congestion prediction efficiency, high travel cost, large area, and difficult to realize accurate traffic congestion analysis, so as to improve the overall traffic efficiency and ensure road safety. The effect of unimpeded and flexible method

Active Publication Date: 2022-08-09
南京城建隧桥智慧管理有限公司 +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of a reliable traffic congestion propagation model, it is difficult to achieve large-scale and accurate traffic congestion analysis, and cannot support efficient traffic congestion prediction
The traffic congestion prediction in the prior art is generally based on the subjective experience of people, the traffic congestion analysis results are not accurate, and the congestion prediction analysis can only be carried out in a small area, the traffic congestion prediction efficiency is low, and the travel time of car owners increases. high travel costs

Method used

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  • A Hierarchical Sorting Method of Road Importance by Time in Urban Road Network
  • A Hierarchical Sorting Method of Road Importance by Time in Urban Road Network
  • A Hierarchical Sorting Method of Road Importance by Time in Urban Road Network

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Embodiment

[0075] like figure 1 As shown, in a modern city, the urban road network extends in all directions. If the intersections are regarded as nodes, and the roads connecting different intersections are regarded as edges connecting different nodes, the entire road network can be regarded as a mathematical graph. , it should be noted that the intersection mentioned here can be a T-shaped (three-forked) intersection, a cross (four-forked) intersection, a five-forked intersection, etc., as well as a circular roundabout. The road mentioned here refers to the road that vehicles pass through. The directionality of vehicles on the road, so the road has one-way driving lanes and two-way driving lanes, so figure 1 is actually a directed graph.

[0076] A method for grading and sorting the importance of roads by time period in an urban road network, comprising the following steps:

[0077] S1. Establish a directed graph model of the urban road network: turn the edges representing roads into ...

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Abstract

A method for grading and sorting the importance of roads by time period in an urban road network. Using the information of the urban road network and the influencing factors of the city center location, the importance of each road section is calculated and sorted by grades for the morning and evening get off work hours and other time periods every day. For important road sections in different time periods, strengthen police force and traffic diversion to ensure smooth roads and improve the overall traffic efficiency of urban roads.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and relates to a method for grading and sorting the importance of roads by time period in an urban road network. Background technique [0002] With the rapid development of the economy, the number of private cars has greatly increased, and the problem of urban road congestion has become increasingly serious, which has brought great challenges to the smooth operation of urban traffic and has a great impact on people's life and travel. The traffic control management center relies on the Intelligent Transportation System (ITS) to deal with accidents in a timely manner and ensure smooth roads. ITS obtains traffic data by monitoring the state of roads and vehicles, and provides analysis results for traffic departments, effectively alleviating the problem of road congestion. Among them, through the analysis of historical data, obtaining the congestion period of different locations i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
CPCG08G1/0133
Inventor 周正康唐加山罗志成武健周军
Owner 南京城建隧桥智慧管理有限公司
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