Whole-journey independent phase green wave induction control method and system of traffic flow

A control method and technology of traffic flow, applied in the control of traffic signals and other directions, can solve the problems of confusion, low traffic efficiency, and inconvenient signal transmission.

Inactive Publication Date: 2012-07-18
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to provide a full-range independent phase green wave induced signal light control method and system, by setting independent green wave flowing water signal lights at intervals along the road, setting buffer yellow wave band signal lights and merging signal induced flowing water signal lights at intersections, using Wireless signal transmission can solve the problems of traffic conflict, confusion, low traffic efficiency and inconvenient signal transmission at intersections, so that vehicles can adjust their speed according to their own conditions, and form formations to pass through intersections to improve road traffic capacity

Method used

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  • Whole-journey independent phase green wave induction control method and system of traffic flow
  • Whole-journey independent phase green wave induction control method and system of traffic flow

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Embodiment 1

[0085] Embodiment 1: see Figure 1-18 , the whole process independent phase green wave traffic flow induction control method is to realize the induction and smooth passage of vehicle flow through the collection and processing of traffic flow signals, the control of traffic flow green wave signals and intersection signal lights; Set multiple pairs of vehicle information sensors and multiple wave band signal indicators equidistantly on the railing, set merging flow signal indicators at the intersection road lane lead, and set buffer yellow band signal lights in the middle of the intersection to avoid conflicts between opposite traffic flows Space; use wireless transmission and reception to transmit traffic flow signals and green wave band control signals. Each vehicle information sensor is equipped with a signal transmitting device, and each wave band signal indicator is equipped with a signal receiving device. Through the signal processing and control device Wirelessly receive ...

Embodiment 2

[0112] Example 2: see Figure 1-18 , the whole process independent phase green wave traffic flow induction control method and system are the same as in Embodiment 1; the vehicle information sensor is arranged on the road surface along each one-way road, and the vehicle information sensor adopts a common magnetic nail sensor, and each road at the intersection There are 3 pedestrian zebra passages at the entrance, and each zebra passage is equipped with traffic lights. The distance between the paired vehicle information sensors on the road along the road is 10m, and the distance between the wave band signal indicators on the isolation fence along the road is 1m. The signal light distance in the merging induction flow signal light group set on the merging lead line at the intersection is 0.5m; the length of pre-formation vehicles is 8m, and the pre-formation cycle is 0.5 times / min.

Embodiment 3

[0113] Embodiment 3: see Figure 1-18, the whole process independent phase green wave traffic flow induction control method and system are the same as in Embodiment 1; the vehicle information sensor is arranged on the road surface along each one-way road, and the vehicle information sensor adopts a common piezoelectric sensor, and the road is paired on the road surface The distance between the set vehicle information sensors is 30m, the distance between the wave band signal indicators set on the isolation fence along the road is 5m, and the distance between the signal lights in the merge induction flow signal light group set on the lead line of the intersection merge is 1.5m; The length of pre-formation vehicles is 15m, and the pre-formation period is 2 times / min.

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Abstract

The invention relates to a whole-journey independent phase green wave induction control method and a system of traffic flow, belonging to the technical field of traffic signal control. The method comprises the steps of: setting vehicle sensors and waveband signal indicator lamps along a road, setting parallel road induction stream signal indicator lamps and buffering yellow waveband signal lamps at intersections, transmitting a traffic flow signal and a green wave band control signal in a wireless manner, transmitting a traffic flow pulse signal to a computer for processing and pre-grouping the traffic flow, emitting a pre-grouping signal command, periodically turning on the waveband signal indicator lamps along the road to form a movable green wave band so as to guide the vehicles to travel and group the traffic flow, and matching the intersection signal lamps to realize whole-journey independent phase green wave induction control of the traffic flow. The system comprises a traffic flow signal collecting, traffic flow signal processing and controlling device, intersection signal lamps and control cabinets of the intersection signal lamps, the vehicle sensors and the waveband signal indicator lamps are arranged along the road, and the sensors and the indicator lamps are in wireless connection with the signal processing and controlling device. The method and the system, disclosed by the invention, have the advantages of realizing phase difference independent green wave band induction of vehicles and improving the intersection passing efficiency, etc.

Description

technical field [0001] The invention relates to a whole-process independent phase green wave traffic flow induction control method and system, belonging to the technical field of traffic signal control. Background technique [0002] With the continuous development of cities and the continuous increase of vehicles, traffic congestion has become the most troublesome thing in modern society. Traffic management has attracted more and more attention. Urban road networks are basically composed of road sections and intersections. As far as road sections are concerned, intersections have a greater impact on the traffic capacity of urban roads and are the bottleneck of urban traffic flow, while signalized intersections are a more critical link in the urban road network. Most of the existing urban road intersection signal control cycles use historical data as the basis. This historical statistical data cannot reflect the dynamic and real-time traffic flow status, and cannot effectivel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07G08G1/08
Inventor 陈蜀乔
Owner KUNMING UNIV OF SCI & TECH
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