Multi-cycle length bidirectional trunk line green wave control method
A technology of green wave and control method for arterial lines, applied in traffic control systems, traffic control systems of road vehicles, complex mathematical operations, etc., can solve the problem of little research on signal cycle length, and improve time utilization and signal control effects. Effect
Active Publication Date: 2021-08-03
SOUTHEAST UNIV
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Problems solved by technology
[0002] Although the algorithm for solving the green wave model has made some progress in the relaxation of the green wave bandwidth constraint and the coordinated control range, there is little research on the signal cycle length
The existing algorithm requires the signal cycle length of all intersections within the green wave control range to be the same value, and for a single intersection, the time length unified by the coordinated control may not be the optimal cycle length for the intersection
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[0040] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0041] In the multi-period length bidirectional main line green wave control method of the present invention, the coordinated control process is as follows figure 1 As shown, it specifically includes the following steps:
[0042] (1) Input the relevant information of the arterial intersections, including: the number of arterial intersections, the duration of the traffic light at the phase of the green wave at each intersection, the distance between intersections, and the queuing and clearing time data at each intersection.
[0043] (2) Specify the multi-cycle arterial signal control limit data, including: the upper and lower limits of the unit cycle length, the weight of the downlink green wave bandwidth relative to the uplink green wave bandwidth, the maximum multiple of the intersection cycle length in the unit cycle length,...
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The invention discloses a multi-cycle length bidirectional trunk line control method, which comprises the following steps of inputting trunk line intersection related information, and specifying multi-cycle trunk line signal control limit data, on the basis of the classic bidirectional green wave control model, setting integer variables to describe the multiple relation of the period duration of each intersection in the standard period duration, reconstructing a bandwidth relationship and a green wave band transfer relationship between adjacent intersections, and modifying bandwidth constraints and whole-ring constraints in the model, constructing a multi-cycle length bidirectional trunk line green wave control model by taking the green wave bandwidth weighted sum in the maximization unit cycle as a target, solving the model, outputting related control parameters, and acquiring a multi-cycle length bidirectional trunk line green wave control scheme. According to the method, the problem that the period duration of a single-point intersection is improper due to the unified period duration of an existing model is solved, and the limitation and the control effect of an existing green wave control model method are improved.
Description
technical field [0001] The invention relates to the field of signal control in traffic management and control, in particular to a multi-period-length two-way trunk line green wave control method. Background technique [0002] Although the green wave model solving algorithm has some developments in the relaxation of the green wave bandwidth constraint and the coordinated control range, there are few studies on the signal period length. The existing algorithm requires the signal cycle length of all intersections within the green wave control range to be the same value, and for a single intersection, the time length unified by the coordinated control may not be the optimal cycle length of the intersection. In the concept of green wave control, if the signal cycle lengths of each intersection are not equal, but in multiples, it can also ensure the periodic appearance of green waves and realize effective green wave control on arterial lines. Contents of the invention [0003] ...
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Login to View More IPC IPC(8): G08G1/081G08G1/083G06F17/10G08G1/085
CPCG08G1/081G06F17/10G08G1/083G08G1/085
Inventor 季彦婕余佳洁刘攀张豫徽戚心怡徐铖铖
Owner SOUTHEAST UNIV