Signal green wave coordination route optimization control method and system based on real-time traffic conditions
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A technology of real-time road conditions and optimized control, applied in the field of transportation, can solve problems such as aggravated traffic congestion and ineffective green wave coordination schemes
Active Publication Date: 2021-04-06
ENJOYOR COMPANY LIMITED
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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.
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Embodiment 1
[0113]Seefigure 1 The present invention provides an optimization control method for signal green waves based on real-time road conditions, as follows:
[0114]S1, get road network information, real-time road condition traffic data, signal control scheme data.
[0115]Specifically: the traffic attributes, real-time road traffic data, and signal control scheme data of the intersection, road sections, lanes, etc. are obtained from the ITS system (intelligent transportation system).
[0116]The urban road network information specifically includes the intersection attributes, road segment properties, lane properties, and the dependence data between the three.
[0117]The real-time road condition traffic data, including road segment vehicle speed data, each flowing lane flow, saturation, and the like. The sample data is as follows:
[0118]
[0119]The signal control scheme data is specifically a signal coordination scheme data. The sample data is as follows:
[0120]
[0121]S2, based on fuzzy theory, construct...
Embodiment 2
[0219]SeeFigure 4This embodiment provides a system for implementing a signal green wave coordinated route optimization control method based on a real-time road condition, including:
[0220]The data acquisition module is used to obtain the relevant data required for coordination route cluster generation, including detector traffic, saturation, signal control scheme, Internet vehicle stroke speed, time and other dynamic data, and urban road network static information.
[0221]Data storage module and pre-processing module for unified source data format, the statically associated processing of the data network object, the time particle size, and the like.
[0222]Coordinating the route cluster generation module, used for the comprehensive analysis model of the offline construction coordination route, online computing sections green wave validity, based on road network accessibility and traffic data similarity, and classify the coordination route through hierarchical ;
[0223]The coordination sche...
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Abstract
A signal green wave coordination route optimization control method based on real-time road conditions, the steps are as follows: S1. Obtain road network information, real-time road condition traffic data, and signal control scheme data; S2. Based on fuzzy theory, construct green wave coordination effectiveness synthesis Analyze the model to calculate the effectiveness of the green wave coordination of road sections; S3, based on the improved hierarchical clustering algorithm, cluster the road sections with high green wave coordination effectiveness, and automatically generate coordinated routes; S4, based on the real-time speed data of the Internet road sections, The overall coordination scheme of the coordination route is optimized, and coordination commands are issued. The invention overcomes the problem that the traditional signal system coordination scheme can only be executed based on a static solidification scheme, and is difficult to adapt to real-time road conditions; it proposes a method for evaluating the effectiveness of road green wave coordination, and provides theoretical support for traffic signal control; it overcomes the traditional signal system The problem that the route of the system coordination scheme cannot be dynamically changed with the road conditions.
Description
Technical field[0001]The present invention belongs to the field of traffic technology, and is related to the optimization control method and system of signal green wave coordination route based on real-time road conditions.Background technique[0002]Green wave coordination is a common method for urban traffic signal optimization. By adjusting the time difference between the signal timing of the intersection of the coordinated route, the vehicle is entered near the intersection of the green light at the next green light, and the vehicle is "all the way green light" on the green wave coordination route. The design elements of green wave coordination usually have cycle time (determined by the key intersections), the green signal ratio (determined by the actual traffic conditions of each intersection), the phase difference (determined by the average speed of the road segment).[0003]Although the green wave coordination can effectively improve the driving speed of the vehicle, there is a c...
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