Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A traffic flow traceability and ramp control method for expressways combined with historical data

A historical data and fast technology, applied in the traffic control system of road vehicles, traffic flow detection, traffic control system, etc., can solve problems such as inability to achieve precise regulation, achieve accurate traffic regulation effects, fast speed, and ensure vehicle adjustment Effect

Active Publication Date: 2022-05-27
TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that in the prior art, the traffic flow of the upstream ramp can only be manually controlled to solve the problem of expressway congestion, and precise regulation cannot be achieved. The present invention provides a method for traceability of expressway traffic flow and ramp regulation combined with historical data It can automatically and accurately control the traffic flow of the expressway without manual intervention, thereby alleviating the congestion problem of the expressway and achieving more accurate traffic control effects

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
  • A traffic flow traceability and ramp control method for expressways combined with historical data
  • A traffic flow traceability and ramp control method for expressways combined with historical data
  • A traffic flow traceability and ramp control method for expressways combined with historical data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] like figure 1 As shown, the present invention is a method for tracing the source of expressway traffic flow and ramp regulation combined with historical data, which includes the following steps.

[0061] S1: According to the historical traffic state, determine the road sections to be adjusted and the congestion points of the road sections to be adjusted that need to be monitored and controlled in real time ( figure 2 , image 3 Marked as: congestion bottleneck point);

[0062] It is assumed that the incoming direction of each vehicle on the road section to be adjusted includes: the upstream road section and the upstream ramp of the road section;

[0063] Set up monitoring points respectively on all upstream ramps of the road section to be adjusted, the congestion points of the road section to be adjusted, upstream and downstream of the congestion point of the road section to be adjusted; set up traffic detectors on all the monitoring points;

[0064] like figure 2...

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 present invention provides an expressway traffic flow traceability and ramp control method combined with historical data, which can automatically and accurately control the traffic flow of the expressway without manual intervention, thereby alleviating the congestion problem of the expressway and obtaining more accurate traffic regulation effect. In the technical solution of the present invention, according to the historical data of the traffic flow of the upstream ramp, the proportion of traffic flow corresponding to each upstream ramp in the traffic flow of the congestion point of the road section to be adjusted is obtained; when formulating the current limiting control scheme for the upstream ramp , according to the proportion of traffic flow corresponding to each up-ramp, calculate the number of released vehicles for each up-ramp, and the duration of green and red lights in the next control cycle of the section to be adjusted.

Description

technical field [0001] The invention relates to the technical field of intelligent traffic control, in particular to a method for tracing the source of expressway traffic flow and ramp regulation combined with historical data. Background technique [0002] Urban expressway is a large-capacity trunk road in the urban road network that bears the long-distance traffic demand, and its traffic efficiency will affect the traffic operation efficiency of the entire city. In recent years, the demand for expressway traffic in major cities has grown rapidly, and some main line sections are often congested or blocked due to the large inflow of on-ramp traffic. The root cause of traffic congestion on expressways is that the demand exceeds the supply and forms a bottleneck point. Under the condition of a certain traffic capacity, in the prior art, the inflow of vehicles is adjusted by controlling the upstream ramp, thereby preventing the main line traffic flow from being in an oversatura...

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 Patents(China)
IPC IPC(8): G08G1/01G08G1/08G08G1/095
CPCG08G1/0104G08G1/0129G08G1/08G08G1/095
Inventor 刘东波徐棱张宾何广进刘成生
Owner TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com