Planar crossroad signal control optimization method based on vehicle queue length

A technology of crossing and queuing length, which is applied in the field of level crossing signal control based on vehicle queuing length, and can solve the problem that the traffic signal control optimization method cannot meet the actual signal control optimization requirements of the intersection.

Inactive Publication Date: 2015-12-16
WUXI HUATONG INTELLIGENT TRAFFIC TECHN DEV
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the present invention provides an optimization method based on the vehicle queuing length for level crossing signal control, which ca...

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
  • Planar crossroad signal control optimization method based on vehicle queue length
  • Planar crossroad signal control optimization method based on vehicle queue length
  • Planar crossroad signal control optimization method based on vehicle queue length

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Take four-phase signal control intersection control as an example below in conjunction with accompanying drawing, specifically describe the realization process of inventive method:

[0033] First, at the four-phase signal control intersection, install high-definition video vehicle detectors, signal machines and signal lights for recording the number of vehicles in each lane and the length of vehicle queuing. The high-definition video vehicle detectors are arranged above the parking lines of each entrance;

[0034] (1) Obtain the initial queue length of each flow direction at the intersection at the beginning of its release phase by deploying high-definition video vehicle detectors above the parking lines of each entrance road at the intersection and the remaining queue length at the end of the release phase Wherein, i is the signal phase number, i=1, 2, 3, 4, j is the direction of the release flow in this phase to the entrance channel, j=E, W, S, N.

[0035] (2) Calc...

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 planar crossroad signal control optimization method based on a vehicle queue length. By means of the method, the problem that currently only one traffic signal control optimization method is adopted and the crossroad real signal control optimization demands cannot be satisfied is solved. The method comprises the following steps of acquiring the start queue length lsij of each flow direction of a crossroad when a green light phase starts and the remaining queue length leij when the green light phase stops, wherein, the i is a signal phase sequence number and can be 1, 2, 3, 4, and j is the green light flow entry road direction inside the phase and can be E, W, S, N; (2) calculating the acceptable green time ratio Paij of each flow direction of the crossroad; (3) judging whether the crossroad requires phase congruency setting and determining the phase congruency duration if the crossroad requires phase congruency setting; (4) and optimizing the crossroad signal timing scheme according to the judgment result in the step (3).

Description

technical field [0001] The invention relates to the technical field of urban road traffic control, in particular to the field of road intersection signal control, in particular to an optimization method for plane intersection signal control based on vehicle queuing length. Background technique [0002] With the rapid development of my country's economy, the number of urban motor vehicles is increasing rapidly, and the frequency of traffic congestion is increasing, which has a negative impact on the daily life of urban residents. Optimizing the signal control scheme of existing level intersections is a low-cost, high-efficiency method of congestion control, which has received more and more attention and investment. [0003] At present, the optimization methods of traffic signal control include the phase sequence optimization method and the signal timing optimization method, among which the phase sequence optimization method is to improve the operation efficiency of the inters...

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
IPC IPC(8): G08G1/08
Inventor 华璟怡顾金刚代磊磊卢健付强祖永昶徐棱
Owner WUXI HUATONG INTELLIGENT TRAFFIC TECHN DEV
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap