ACP-based parallel traffic signal light real time control method

A technology of traffic signal lights and control methods, which is applied in the field of real-time control of parallel traffic lights based on ACP, can solve problems such as inability to control intersection signals, and achieve the effects of improving decision-making efficiency, reducing waiting time, and alleviating traffic congestion.

Active Publication Date: 2017-08-18
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the traditional signal light control adopts the method of fixed signal cycle, fixed duration and fixed phase conversion sequence, which cannot control the intersection si

Method used

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  • ACP-based parallel traffic signal light real time control method
  • ACP-based parallel traffic signal light real time control method
  • ACP-based parallel traffic signal light real time control method

Examples

Experimental program
Comparison scheme
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Embodiment

[0055] image 3 It is a schematic diagram of an actual intersection system scene, and four phases are set to avoid traffic conflicts. It is mainly composed of traffic data acquisition device, intelligent traffic lights and traffic server.

[0056] The data acquisition device includes intersection cameras and other devices, which are used to count the traffic flow at the exit of each lane and the flow of pedestrians and non-motor vehicles on the non-motorized lane, and upload them to the traffic server.

[0057] Intelligent traffic lights: implement the timing plan fed back in the manual system, and independently set the corresponding phase sequence and traffic light duration.

[0058] Traffic server: Use the collected data to build an artificial traffic light timing system and dynamically decide on a timing scheme.

[0059] specific plan:

[0060] 1. Phase sequence decision:

[0061] Use the data acquisition device to collect the vehicle queuing length of each phase and di...

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Abstract

The invention discloses an ACP-based parallel traffic signal light real time control method. The method includes steps of 1, constructing a traffic flow data collection system and a data base for an isolated intersection; 2, constructing an artificial signal light system; 3, importing real time traffic flow data collected by the data collection system to a computation test platform and obtaining a real time timing plan through computation; 4, loading a computation test result to an actual traffic signal light system through a parallel execution method so as to realize induction intervention on real time traffic flows; 5, constructing an intersection state evaluation system. Traffic light timing in the invention has the following characteristics. First, a time varying domain theory is applied to the computation test process and a membership function of a fuzzy set is subjected to real time adjustment according to periodical change. Second, the timing scheme in the invention is real time and the timing period and time lengths of different phases adapt to conditions of the traffic flows. Third, system decision efficiency is improved through computation test of the artificial system.

Description

technical field [0001] The invention relates to the field of intelligent traffic, in particular to an ACP-based real-time control method for parallel traffic lights. Background technique [0002] With the rapid development of social economy, urban vehicles continue to increase, and the traffic system is becoming more and more complex. The randomness and unpredictability of the behavior of pedestrians and motor vehicles make it difficult for people to establish accurate mathematical models. Good results. For intersections where vehicles and pedestrians are concentrated, the problem is particularly obvious, which is a high-occurrence area of ​​congestion in the entire urban road traffic. Various traffic flows (motor vehicles, non-motor vehicles and pedestrians) repeatedly merge, diverge and cross at level intersections, making the traffic conditions extremely complex, so urban traffic congestion is often manifested at intersections, improving its traffic efficiency is the ke...

Claims

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Application Information

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IPC IPC(8): G08G1/07G08G1/08
CPCG08G1/07G08G1/08
Inventor 莫红王飞跃刘芬曹小玲郝学新
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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