A regional traffic signal coordination control method and system for complex traffic control environment

Abstract

The invention relates to a regional traffic signal coordination control method and system for complex traffic control environment. The traffic control environment is defined as the countdown display device and the communication network between the devices. Aiming at the engineering complexity and application complexity objectively existing in the traffic control environment, a phase coordination network for regional traffic signal coordination control is constructed; then based on the phase coordination The network performs phase green time optimization and phase green enforcement. The invention can not only effectively coordinate the signal control of the intersection with the strategy of load balancing, but also can flexibly adapt to the complex traffic control environment in practice, making up for the deficiency of the existing regional traffic signal coordination control method and research.

Description

technical field [0001] The invention relates to a regional traffic signal coordination control method and system facing complex traffic control environment, and belongs to the technical field of intelligent traffic. Background technique [0002] With the expansion of the scale of cities, the Regional Traffic Signal Control (RTSC) system involves more and more traffic detectors, traffic controllers and their connected signal indicators and countdown display devices. Complex distributed control system. When implementing regional traffic signal control in practice, in addition to the complexity of the traffic flow itself, it often faces the following two complexities. 1) Engineering complexity: In practice, due to the gradual replacement of equipment, project bidding and other reasons, the manufacturers or models of signals and detectors installed at each intersection in a certain period may be different, resulting in the traditional RTSC system often unable to access All tra...

AI Technical Summary

Problems solved by technology

1) Engineering complexity: In reality, due to the gradual replacement of equipment, project bidding and other reasons, the manufacturers or models of signal machines and detectors installed at each intersection may be different in a certain period of time, resulting in the traditional RTSC system often being unable to access All traffic controllers are controlled; or because of installation cost or actual traffic demand, some road sections and intersections are not equipped with detectors and signal machines, resulting in blind spots for perception and control in some areas

2) Application complexity: due to long-term operation outdoors, some traffic controllers cannot be controlled online due to network or self-failure problems, or traffic controllers at certain intersections need to perform higher priority tasks at certain times, such as green Band control or manual control, the RTSC system cannot change the operation of these signals online

[0003] The above complexities are difficult to completely eliminate in practice, especially in areas in the process of urbanization, and with the continuous expansion of urban scale and refined management of traffic, various practical applications emerge in endlessly, large-scale urban traffic signal control and System operation and maintenance is facing huge challenges

However, most of the current studies only focus on the research of the theoretical algorithm itself, while ignoring the operability of practical applications, and there are few reports on the research on complex traffic control environments.

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