Red-and-green area identifying and evaluating method for urban road network operation state

A technology of urban road network and operation status, applied in the intersection of reliability and transportation science, it can solve problems such as statistical deviation and poor stability.

Active Publication Date: 2019-05-21
BEIHANG UNIV
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The "red and green" area identification and evaluation method of the urban road network operating state adopted by the present invention solves the problems of the existing road network operating state evaluation methods such as abstraction, static, statistical deviation, and poor stability in the reliability management of the road network. limitations in decision making

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Red-and-green area identifying and evaluating method for urban road network operation state
  • Red-and-green area identifying and evaluating method for urban road network operation state
  • Red-and-green area identifying and evaluating method for urban road network operation state

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] In order to make the technical problems and technical solutions to be solved by the present invention clearer, the following will describe in detail with reference to the accompanying drawings and specific implementation examples. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, not to limit the present invention.

[0057] The purpose of the present invention is to solve the limitations of the existing road network operating state evaluation methods, such as abstraction, static, statistical deviation, poor stability, etc., in road network reliability management decision-making. This patent introduces the concept of dynamic connected subgraphs under the premise of considering the needs of traffic managers for the research and judgment of the overall operation situation of the road network. The overall operation situation of the network is evaluated and reasoned. The "red and green" are...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a red-and-green area identifying and evaluating method for an urban road network operation state. The method comprises the following steps of A, identifying red-and-green sidesin the urban road network; B, digging red-and-green areas in the urban road network operation state; C, presenting a road network operation reliability index based on the red-and-green areas; and D, analyzing emerging and evolution characteristics of the red-and-green areas. For aiming at restrictions such as abstractness, static state, relatively low statistics property and relatively low stability in road network reliability management decision according to an existing road network operation state evaluation method, a concept of dynamic sub-picture connecting is introduced, and the red-and-green area identifying and evaluating method for the urban road network operation state is constructed. According to the method of the invention, the road network is divided into areas with different operation states; through analyzing the emerging and evolution characteristics, a manager can accurately master the real-time road network operation state for preparing a scientific and high-efficiencytraffic management solution. The red-and-green area identifying and evaluating method for the urban road network operation state has advantages of high wholeness, high stability, easy determining, wide application, etc.

Description

technical field [0001] The present invention proposes a "red and green" area identification and evaluation method of urban road network operating status, which relates to a "red and green" area identification and evaluation method of urban road network operating status, which belongs to the intersection of reliability and traffic science technology field. Background technique [0002] Today's urban traffic volume is growing rapidly, and the increasing traffic congestion has brought great inconvenience to the work and life of residents and hindered the development of the city. According to AutoNavi's "2018 Annual Traffic Analysis Report of China's Major Cities", among the 361 cities monitored by AutoNavi's traffic big data, 15% of the cities are congested during peak hours, 59% of the cities are in a slow state, and only 26% of urban commutes are not threatened by congestion. Due to the limited urban road traffic resources, the key to solving congestion is how to rationally...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01
Inventor 李大庆刘诗炎
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products