A Coordinated Signal Control Method for Long Arterial Intersections Based on Segmented Green Waves

Abstract

The invention discloses a signal coordination control method for long trunk line intersections based on segmented green waves, which comprises the following steps: inputting relevant information of long trunk line crossings, specifying long trunk line signal control limit data; on the basis of a two-way green wave control model , introducing state variables to describe whether each intersection is a green wave segmentation point; according to the bandwidth relationship and green wave band transfer relationship between the intersections in the same subsection and the intersections between different subsections, adjust the bandwidth constraint and the whole ring in the model Constraints, identifying the connection relationship between adjacent intersections, aiming at maximizing the sum of the bandwidth of all intersections, constructing an optimization model for segmented green wave coordinated control of long trunk lines; solving the model, outputting relevant control parameters, and obtaining a segmented green wave control scheme for long trunk lines . Starting from the characteristics of traffic flow, the invention flexibly combines the intersections of long arterial lines, solves the problem that the bidirectional green wave control of long arterial lines is difficult to obtain a feasible bandwidth, and improves the adaptability of traditional green wave control methods.

Description

technical field [0001] The invention relates to the field of signal control in traffic management and control, in particular to a signal coordination control method for long arterial intersections based on segmented green waves. Background technique [0002] The green wave control of the arterial line is to set the control parameters such as phase difference and phase sequence of the arterial intersection reasonably, so that the convoy can realize continuous passage on the arterial line, which is one of the key traffic control methods to improve traffic efficiency and alleviate traffic congestion. In the green wave optimization model of the trunk line, the flow state of each intersection in the trunk line will have an impact on the control effect of the trunk line. Therefore, the more intersections the trunk line contains and the more constraints, the smaller the bandwidth, or even no feasible solution. . In this regard, it is not difficult to think that the long trunk line...

AI Technical Summary

Problems solved by technology

Based on the MAXBAND model, the theory and method of green-wave coordinated control of trunk lines are relatively mature, but there are few studies on segmental green-wave control of long trunk lines, and the research on segmental methods of long trunk lines is not comprehensive enough.

When the number of intersections requiring green wave control is large, the bandwidth of green wave is often small due to the constraints of traffic conditions at each intersection, making it difficult to achieve ideal control effects

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