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Method and device for intelligently and automatically controlling urban elevated expressway ramps based on multi-source data and storage medium

A multi-source data and automatic control technology, applied in the field of urban road traffic control management, can solve problems such as rough means, inability to adapt to traffic situation, manual observation, etc.

Active Publication Date: 2022-07-15
济南市公安局交通警察支队 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the traditional management and control methods have some shortcomings. First, manual observation is required, which consumes manpower; second, the judgment is relatively subjective, and different management and control personnel will make different decisions; There are more and more expressways, and the degree of congestion is getting more and more serious. The traditional way is even more unable to adapt to the current traffic situation.
[0005] At present, the existing technology is also used to control the viaduct, but the method is relatively rough, for example, it only automatically judges whether to close the ramp

Method used

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  • Method and device for intelligently and automatically controlling urban elevated expressway ramps based on multi-source data and storage medium
  • Method and device for intelligently and automatically controlling urban elevated expressway ramps based on multi-source data and storage medium
  • Method and device for intelligently and automatically controlling urban elevated expressway ramps based on multi-source data and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A method for intelligent automatic control of urban elevated expressway ramps based on multi-source data, such as figure 1 shown, including:

[0061] (1) Data collection, including: road network data, road condition speed, OD data, date and time, and control measures;

[0062] Road network data refers to the topology data of the basic road network, including the upstream and downstream relationships between each elevated road section, the elevated exit, the elevated entrance, the relationship between the elevated entrance and exit and the elevated road section, and the relationship between the elevated and auxiliary roads, and are included in the attribute database;

[0063] The road condition speed refers to the historical road condition speed and real-time road condition speed of each road section;

[0064] OD data refers to: the bayonet device monitors the vehicle flow of the elevated road and the entrances and exits of each elevated road in real time, and identifie...

Embodiment 2

[0085] A method for intelligent automatic control of urban elevated expressway ramps based on multi-source data according to Embodiment 1, the difference is:

[0086] After step (3), predict the traffic flow and optimize the control scheme, which specifically refers to:

[0087] Since the traffic flow changes with time, the control scheme calculated by the above decision tree model is based on the results obtained from the current real-time data. In order to adapt to the subsequent changes in the traffic flow, the traffic flow conditions are first predicted, and then the current calculation results are calculated by the optimization algorithm. optimization.

[0088] D. Short-term forecast of traffic flow

[0089] The autoregressive model is used, as shown in formula (II):

[0090]

[0091] In formula (II), m refers to the autoregressive order, a i refers to the autoregressive coefficient (AR coefficient) of period i, w n is the white noise, q n means the traffic flow; ...

Embodiment 3

[0100] A computer device includes a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, the processor implements the steps of the method for intelligent automatic control of an urban elevated expressway ramp based on multi-source data in Embodiment 1 or 2.

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Abstract

The invention relates to an urban elevated expressway ramp intelligent automatic control method and device based on multi-source data, and a storage medium, and the method comprises the steps: (1) collecting data, including road network data, road condition speed, OD data, date and time, and management and control measures; (2) constructing a decision tree model: A, acquiring decision tree model data including attribute data and target data; b, constructing a decision tree model; c, updating the decision tree model; (3) performing real-time monitoring through the decision tree model; according to the method, the defects of manual operation, untimely reaction, high probability of congestion spreading and deterioration and the like in the current expressway ramp control are overcome. According to the invention, support is provided for urban traffic management and urban congestion alleviation.

Description

technical field [0001] The invention relates to the field of urban road traffic control and management, in particular to a method, device and storage medium for intelligent automatic control of urban elevated expressway ramps based on multi-source data. Background technique [0002] At present, the phenomenon of urban road congestion is becoming more and more serious. The management and control of urban road traffic is an important field involving people's life and office, especially elevated expressways, which play an important part in urban road traffic. [0003] The traditional management and control methods of elevated expressways mainly rely on managers to manually monitor the road conditions of the elevated roads. If a road is congested, determine what causes the congestion and what control measures should be taken, such as closing the upstream on-ramp and extending the exit-ramp. Green light time below. [0004] However, there are some shortcomings in the traditional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G06N5/00
CPCG08G1/0145G08G1/0133G08G1/0108G06N5/01Y02T10/40
Inventor 胡颖潘述亮刘鹏滑树阳丁大江
Owner 济南市公安局交通警察支队
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