Signal control method combining main trunk road bidirectional dynamic green wave and secondary trunk road semi-induction

Abstract

The invention provides a signal control method combining main trunk road bidirectional dynamic green wave and secondary trunk road semi-induction. The signal control method comprises the following steps: initializing relevant parameters of a traffic signal control system, wherein the relevant parameters include a common signal cycle, a green signal ratio at each intersection and an uplink and downlink phase difference in the direction of a main trunk road at each intersection; performing coordinating parameter processing on main trunk road: adjusting and optimizing the common signal cycle, the green signal ratio at each intersection and the uplink and downlink phase difference in the direction of the main trunk road at each intersection; performing semi-induction control processing on secondary trunk road: setting and optimizing the shortest green light time of a secondary trunk road, setting and optimizing the longest green light time of the secondary trunk road, setting and optimizing the green light delay time of the secondary trunk road and setting and optimizing a threshold value capable of meeting the secondary trunk road traffic. According to the signal control method, a green wave band is dynamic, so that the real-time traffic flow can be better adapted, and the traffic capacity of the main road is favorably improved.

Description

technical field [0001] The invention relates to the field of traffic control, in particular to a control method of traffic signal lamps. Background technique [0002] In recent years, my country's economy has continued to develop at a high speed, urban construction has continued to advance, and traffic flow has also continued to expand. At the same time, with the development of the economy, residents have higher requirements for the convenience and comfort of travel, resulting in a rapid increase in the number of private cars, and the pressure on transportation demand continues to increase. The incomplete construction of road traffic infrastructure and the backward traffic signal control strategy make the problem of traffic congestion particularly prominent. [0003] In order to alleviate this problem, many scholars at home and abroad have conducted a lot of research and practice on arterial road control. In the research and practice of arterial road control, green wave te...

AI Technical Summary

Problems solved by technology

[0004] However, in the existing green wave control algorithm, the green light time of each phase will not change after the flow is calculated, and it is fixed for at least one cycle. This is a road section where the traffic flow of the secondary arterial road is highly volatile, and the green light time of the secondary arterial road may not be used, and the green light time of the main road is not enough, resulting in waste of green light time of the secondary arterial road, and the green light utilization rate of the entire cycle is low

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