Adjacent intersection arterial road coordinate control model and optimization method thereof

A technology of coordinated control of adjacent intersections, applied in traffic control systems, traffic control systems of road vehicles, instruments, etc., can solve problems such as failure to propose a perfect traffic control model, calculation delays, etc.

Active Publication Date: 2015-07-29
BEIJING UNIV OF TECH
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Liu Guangping and others proposed a calculation method for intersection delay under unsaturated, saturated and oversaturated conditions, but onl

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
  • Adjacent intersection arterial road coordinate control model and optimization method thereof
  • Adjacent intersection arterial road coordinate control model and optimization method thereof
  • Adjacent intersection arterial road coordinate control model and optimization method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0151] The present invention will be further described below with reference to the drawings and specific implementation examples.

[0152] The present invention is aimed at adjacent intersections under two-phase control conditions ( figure 2 (Shown) establish an arterial road coordination control model, and use an improved genetic algorithm to optimize the model to obtain the cycle length, main street timing, signal timing and phase difference of the two adjacent intersections, and then the adjacent intersections Carry out coordinated control of arterial roads. The main flow chart of the method involved in the present invention is as follows Figure 17 As shown, including the following steps:

[0153] Step 1: Perform individual coding, initialize data, and set parameters;

[0154] (1) Individual code

[0155] The cycle length, main road time (east-west street), signal timing of each intersection, and phase difference are used as optimization parameters at the same time to form an in...

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

Provided are an adjacent intersection arterial road coordinate control model and an optimization method thereof. The method includes the steps of building an adjacent intersection four-phase arterial road coordinate control model; performing individual coding, initializing data and setting parameters; performing population initialization; calculating values of the fitness of individuals in a population; performing minimum spanning tree clustering on the population; selecting individuals in the population to participate in genetic manipulation; performing genetic manipulation and mutation on the selected individuals; repeating iteration until obtaining the best individual. According to the adjacent intersection arterial road coordinate control model and the optimization method of there adjacent intersection arterial road coordinate control model, the minimum total delay of each vehicle team waiting in line is set as performance indicators, a more complete adjacent intersection arterial road coordinate control model is built by analyzing the signal states that front vehicles and rear vehicles of a vehicle team released in different phases at the upstream intersection encounter before reaching the downstream intersection and whether all vehicles at the intersection are released during release or not, an improved genetic algorithm is used as an optimization algorithm, and the length of the cycle, the arterial road timing, the signal timing and the phase difference are used as parameters for optimization solution.

Description

technical field [0001] The invention belongs to the technical field of signal timing optimization at adjacent intersections in urban traffic control, and in particular relates to an arterial coordinated control model of adjacent intersections and an optimization method thereof. Background technique [0002] At present, the city is developing and growing at a very fast speed, and the problem brought about at the same time is that the urban traffic congestion is becoming more and more serious. Therefore, reasonable coordinated control of arterial intersections can effectively alleviate urban traffic congestion. The traditional signal control methods for arterial intersections include: numerical solution method and graphic method, which aim at obtaining the maximum green wave width to obtain the time difference of the coordinated control system to control the system. Among them, the numerical solution method is more commonly used, but in the calculation process of the numerica...

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): G08G1/081
CPCG08G1/081Y02T10/40
Inventor 杨新武王巧慧薛慧斌
Owner BEIJING UNIV OF TECH
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