Multilevel road network traffic speed control method

A technology of speed control and traffic, which is applied in traffic control system, traffic control system of road vehicles, traffic flow detection, etc. It can solve the problems of both traffic speed, real-time difficulty, difficult traffic efficiency, etc., and achieve the effect of benefiting traffic conditions

Active Publication Date: 2017-07-25
CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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Problems solved by technology

[0003] In the prior art, the following measures are generally taken to relieve the pressure of road traffic: First, the method of increasing the road network, that is, building new roads, is costly and difficult in real time, and cannot effectively solve the problem of urban congestion. The second problem is that it is carried out through traffic control, which is also the main means at present. However, in the control methods in the prior art, it is difficult to achieve both traffic efficiency and traffic speed, and it is difficult to achieve effective coordination of road network traffic.

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  • Multilevel road network traffic speed control method
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Embodiment Construction

[0026] figure 1 It is a flowchart of the present invention, as shown in the figure, a kind of multi-level road network traffic speed control method provided by the present invention comprises the following steps:

[0027] S1. divide the target road network that needs to be managed into road sections according to the design speed, and construct the set X of the target road network, where X=(x 1 , x 2 ,...,x i ,...,x n ), i=1,2,...,n;

[0028] S2. Obtain the target road segment x i The design speed v i and traffic flow q i ;

[0029] S3. Construct traffic efficiency function And according to the traffic efficiency function, the optimal speed of the vehicle corresponding to the maximum traffic efficiency is obtained, and the speed v is controlled within the optimal speed range of the vehicle, where α>0, β>0, β * =α+β, k is the traffic density, determined according to the traffic flow of the target road section and the length of the road section, the unit is vehicle / km, ...

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Abstract

The invention provides a multilevel road network traffic speed control method which comprises the following steps of: dividing a target road network required to be managed into road segments according to design speed; acquiring the design speed vi and the traffic flow qi of a target road segment xi; and constructing a traffic efficiency function, solving vehicle optimal speed corresponding to a maximum traffic efficiency value according to the traffic efficiency function, and controlling the speed v within a vehicle optimal speed range. The method can take account of traffic speed and traffic efficiency to determine the optimal vehicle driving speed and to perform corresponding control, thereby ensuring that respective road segments in the multilevel road network are in the optimal traffic efficiency range, and being beneficial to the improvement of urban road traffic conditions.

Description

technical field [0001] The invention relates to the field of traffic control, in particular to a multi-stage road network traffic speed control method. Background technique [0002] With the development of society, road traffic plays an extremely important role. However, in modern society, the number of cars is gradually increasing, which puts great pressure on the road network and even causes congestion. It has also become a worldwide problem in modern society. [0003] In the prior art, the following measures are generally taken to relieve the pressure of road traffic: First, the method of increasing the road network, that is, building new roads, is costly and difficult in real time, and cannot effectively solve the problem of urban congestion. The second problem is that it is carried out through traffic control, which is also the main means at present. However, in the control methods in the prior art, it is difficult to achieve both traffic efficiency and traffic speed, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/052
Inventor 韩直岳海亮余晓南朱湧陈晓利付立家杨桪
Owner CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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