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A method for boundary control of multi-mode traffic network

A boundary control and traffic network technology, applied in traffic control systems, road vehicle traffic control systems, traffic flow detection, etc., can solve problems such as economic loss and traveler time loss, achieve efficient operation levels, and increase solution space. , the effect of flexible control scheme

Active Publication Date: 2022-07-08
SOUTHEAST UNIV
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Problems solved by technology

Traffic congestion will not only cause time loss for travelers, but also cause serious economic losses

Method used

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  • A method for boundary control of multi-mode traffic network
  • A method for boundary control of multi-mode traffic network
  • A method for boundary control of multi-mode traffic network

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Embodiment Construction

[0039] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0040] For a method for controlling the boundary of a multi-mode traffic network described in the present invention, refer to figure 1 ,Specific steps are as follows:

[0041] (1) According to the urban network topology and traffic status, determine the boundary intersection of the control area and the road network area surrounded by it, refer to figure 2 shown;

[0042] Determine the traffic mode composition of the road network, and determine the number of traffic modes that need to be controlled in this part of the road network; draw the scatter diagram of the regional vehicle accumulation and flow rate according to the historical data of the road section detector in the determined road network area , and use the curve to fit the scatter diagram to establish the corresponding macroscopic basic diagram; the fitting method ca...

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Abstract

The invention discloses a multi-mode traffic network boundary control method. Basic diagram; establish a boundary control model based on model predictive control and solve the model to control the size and proportion of multi-mode traffic flow into the controlled road network area; in the control process, the real-time monitoring of road section data is used as input, Solve the boundary control model at preset time intervals and output the boundary control results. The invention takes the traffic network as the control object, and maximizes the flow rate inside the network by controlling the inflow rate from outside the network, so that the controlled network maintains an efficient operation level; The consideration of the model increases the solution space of the model, makes the control scheme more flexible, and improves the practicability of the model.

Description

technical field [0001] The invention belongs to the field of traffic safety control, and in particular relates to a multi-mode traffic network boundary control method. Background technique [0002] With the rapid development of society and economy, the demand for transportation of urban residents is increasing day by day, which poses a huge challenge to the operation and maintenance of the urban transportation system. Among various traffic problems, the problem caused by traffic congestion is particularly serious. Traffic congestion not only causes traveler time loss, but also serious economic losses. In order to cope with congestion, it is necessary to rationally adjust the flow of traffic into areas prone to congestion, so as to ensure the operational efficiency of the transportation network. [0003] Boundary control is a control method that has been widely studied. Its principle is: using the relationship between the number of vehicles accumulated in the network and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/065
CPCG08G1/0129G08G1/0145G08G1/065Y02T10/40
Inventor 王昊李昌泽
Owner SOUTHEAST UNIV
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