Intersection dynamic signal timing optimization method based on time headway

A technology of headway and dynamic signals, applied in the control of traffic signals and other directions, can solve the problems of traffic system loss, poor overall performance of the signal timing scheme of the park-and-ride system, waste of time resources at intersections, etc. Effect

Inactive Publication Date: 2016-12-21
WHALE CLOUD TECH CO LTD
View PDF8 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the unreasonable setting of the signal timing scheme will lead to poorer overall performance of the park-and-ride s

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
  • Intersection dynamic signal timing optimization method based on time headway
  • Intersection dynamic signal timing optimization method based on time headway
  • Intersection dynamic signal timing optimization method based on time headway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0042] Aspects of the invention are described in this disclosure with reference to the accompanying drawings, which show a number of illustrated embodiments. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of numerous ways, since the concepts and embodiments disclosed herein are not limited to any implementation. In addition, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

[0043] combine figure 1 As shown, according to an embodiment of the present invention, a method for optimizing the dynamic ...

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 an intersection dynamic signal timing optimization method based on time headway. The method comprises the following steps: 1, according to monitored vehicle passing data, an intersection phase ID is acquired; 2, a lane group is defined, that is, in the certain phase, all lanes with right of way in the same road section are defined as one lane group; 3, a core release lane in the phase is searched in the lane group, and if all phases of a lane have the right of way, the lane is removed from the lane group; 4, the flow of each lane in the lane group is calculated; 5, the time headway for phase key lanes in one period is acquired; and 6, the phase waste time is calculated, and the time of a green light is correspondingly adjusted. Through the time headway change in one period, an intersection passing signal timing scheme is analyzed, the corresponding given timing scheme is dynamically optimized in real time, and an important role is played in improvement of the operation efficiency of the whole traffic system.

Description

technical field [0001] The invention relates to the field of traffic planning and design, in particular to a dynamic signal timing optimization method at an intersection based on headway. Background technique [0002] The transportation system is one of the main supporting conditions for urban prosperity, orderly and rapid development. Traffic congestion has become one of the most serious problems faced by many cities, and the main cause of traffic congestion is the unreasonable time allocation of traffic lights. In modern traffic management, each road intersection is controlled by red, yellow and green three-color lights, and each group of lights corresponds to a street. However, vehicle delays and average stops increase with signal cycle length. Therefore, how to configure the signal light time to minimize vehicle delays and average parking times and maximize vehicle capacity is the key to solving traffic problems. [0003] A reasonable and scientific signal timing schem...

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
CPCG08G1/08
Inventor 赵顺晶刘晓华刘四奎汤夕根
Owner WHALE CLOUD TECH CO LTD
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