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Control method for urban road traffic

A technology of road traffic control and control method, which is applied in the field of urban road traffic control, can solve the problems of wasting road traffic capacity and poor accuracy, and achieve the effects of reducing noise pollution, good adaptability, and improving traffic efficiency at intersections

Inactive Publication Date: 2009-04-15
ZHEJIANG TONGQU TECH
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AI Technical Summary

Problems solved by technology

[0003] In order to overcome the poor accuracy of the existing urban road traffic control methods and the waste of road traffic capacity, the present invention provides an urban road traffic control method that collects and processes traffic information in real time, has good accuracy, and effectively utilizes road traffic capacity

Method used

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  • Control method for urban road traffic
  • Control method for urban road traffic

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] refer to Figure 1 to Figure 5 , a kind of urban road traffic control method, described control method comprises:

[0038] 1) Use the information collection device to collect traffic information at road intersections, detect vehicle information, and calculate the road occupancy ratio P, the average speed V of bicycles and the detection distance L:

[0039] According to the picture collected by the image, the total vehicle occupation length M is measured, and the detection distance L is a known distance set in advance;

[0040] The formula for calculating the average speed of a bicycle is:

[0041]

[0042] Calculation formula of occupation ratio P:

[0043]

[0044] 2), calculate single-lane green light time S, its calculation formula is (1):

[0045]

[0046] And preset the maximum time T of the green light max , minimum time T min and adjust the...

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Abstract

The invention discloses an urban road traffic control method which comprises the following steps (1) acquiring traffic information of a road junction by an information acquisition device, detecting vehicle information, and computing lane occupancy ratio, an average speed V of a single vehicle and a detection distance L; (2) computing green time S of a single lane; (3) dividing a signal cycle into an east-west release phase and a south-north release phase; wherein, the east-west release phase is divided into an east-west left-turn phase and an east-west straight phase; the south-north release phase is divided into a south-north left-turn phase and a south-north straight phase; if the left-turn lanes and straight lanes in east, south, west and north directions are represented by 1 to 8, and the green time of each lane is S1 to S8 accordingly; the S1 to S8 are respectively computed according to a formula (1) to control the green time of the road junction. The urban road traffic control method acquires and processes car flow information in real time, has high accuracy and effectively utilizes road traffic capacity.

Description

technical field [0001] The invention belongs to the technical field of urban road traffic control, in particular to an urban road traffic control method. Background technique [0002] With the development of our country's national economy and the continuous growth of the automobile industry, the number of urban traffic vehicles is increasing day by day, which puts more and more pressure on urban roads, and the increase in traffic flow leads to increased emissions of vehicle exhaust and increased noise, thereby aggravating the environment. pollution. Over the years, from the analysis of the passing of vehicles at urban intersections, it has been highlighted that there is a focus of traffic: signal lights and the presence or absence of vehicles and the flow of traffic cannot be coordinated, the utilization of lanes is not sufficient, and the utilization rate of lanes is low. In order to solve this problem, various technologies emerge in an endless stream, and intelligent tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07G08G1/08G08G1/01G08G1/052
Inventor 方建民滕飞严华海
Owner ZHEJIANG TONGQU TECH
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