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Signal green wave coordination route optimization control method and system based on real-time road condition

A technology of real-time road conditions and optimal control, applied in the field of transportation, can solve problems such as aggravated traffic congestion and ineffective green wave coordination schemes

Active Publication Date: 2020-05-29
ENJOYOR COMPANY LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the strong dynamics and randomness of the traffic system, the green wave coordination scheme opened due to the difference in road conditions cannot achieve the desired effect, and even aggravates the traffic congestion.

Method used

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  • Signal green wave coordination route optimization control method and system based on real-time road condition
  • Signal green wave coordination route optimization control method and system based on real-time road condition
  • Signal green wave coordination route optimization control method and system based on real-time road condition

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Experimental program
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Embodiment 1

[0113] see figure 1 , the present invention provides a signal green wave coordination route optimization control method based on real-time road conditions, the steps are as follows:

[0114] S1. Obtain road network information, real-time road condition traffic data, and signal control scheme data.

[0115] Specifically: Obtain the traffic attributes of intersections, road sections, lanes and other objects from the ITS system (Intelligent Transportation System), real-time traffic data of road conditions and signal control scheme data.

[0116] The urban road network information specifically includes intersection attributes, road section attributes, lane attributes, and affiliation data among the three.

[0117] The real-time road condition and traffic data include road section vehicle speed data, traffic flow of each flow lane, saturation and so on. Sample data looks like this:

[0118]

[0119] The signal control scheme data is specifically signal coordination scheme dat...

Embodiment 2

[0220] see Figure 4 , this embodiment provides a system for realizing the signal green wave coordination route optimization control method based on real-time road conditions described in Embodiment 1, including:

[0221] The data acquisition module is used to obtain the relevant data required for the generation of coordinated route clustering, including detector flow, saturation, signal control scheme, Internet vehicle travel speed, time and other dynamic data, as well as static information of the urban road network.

[0222] The data storage module and preprocessing module are used to unify the source data format, perform static association processing of road network objects, and uniform processing of time granularity on the data.

[0223] The coordinated route clustering generation module is used to construct a comprehensive analysis model for the effectiveness of coordinated routes offline, calculate the green wave effectiveness of road sections online, and generate coordi...

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PUM

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Abstract

The invention discloses a signal green wave coordination route optimization control method based on a real-time road condition. The method comprises the following steps: S1, acquiring road network information, real-time road condition traffic data and annunciator control scheme data; S2, constructing a green wave coordination effectiveness comprehensive analysis model based on the fuzzy theory, and calculating the effectiveness of road section green wave coordination; S3, clustering the road sections with high green wave coordination effectiveness based on an improved hierarchical clustering algorithm, and automatically generating a coordination route; and S4, optimizing the overall coordination scheme of the coordination route based on the real-time road section speed data of the Internet, and issuing a coordination command. The problem that a traditional signal system coordination scheme can only be executed based on a static solidification scheme and is difficult to adapt to the real-time road conditions is solved. A method for evaluating the road green wave coordination effectiveness is provided, and theoretical support is provided for traffic signal control; and the problem that the traditional signal system coordination scheme route cannot be dynamically changed along with the road conditions is solved.

Description

technical field [0001] The invention belongs to the technical field of transportation, and relates to a signal green wave coordination route optimization control method and system based on real-time road conditions. Background technique [0002] Green wave coordination is a common method for urban traffic signal optimization. By adjusting the start-up time difference of the signal timing phase at each intersection of the coordinated route, the vehicle will arrive at the intersection near the time when the green light at the downstream intersection is turned on, so that the vehicle can pass through the green wave coordinated route with a "green light all the way". The design elements of green wave coordination usually include period length (determined by the key intersection), green signal ratio (determined by the actual traffic conditions at each intersection), and phase difference (determined by the average speed and length of the road section). [0003] Although green wav...

Claims

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Application Information

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IPC IPC(8): G08G1/01G08G1/09G08G1/0968
CPCG08G1/0104G08G1/0129G08G1/0133G08G1/09G08G1/0968
Inventor 谢竞成徐甲丁楚吟邹开荣吴越郭海锋
Owner ENJOYOR COMPANY LIMITED