Road intersection diversion traffic volume assignment method and device based on stepwise recursive control
A technology of traffic volume and intersection, applied in traffic signal control, traffic flow detection, traffic control system, etc., can solve the problems of planning road intersection turning traffic volume prediction and distribution, turning traffic volume is difficult to collect, etc., to achieve wide application and promotion performance, fast and convenient calculation, and small amount of data
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[0032] A method for allocating turning traffic volume at road intersections based on step-by-step recursive control in the present invention specifically includes: collecting cross-sectional traffic volume data at entrances and exits of road intersections, and if conditions permit, can also collect turning traffic volumes in some directions Data; establish intersection steering relationship matrix; set parameters, specify parameter matrix type, parameter matrix, threshold value of each turning traffic volume, maximum number of iterations, accumulative section traffic volume accuracy, single section traffic volume accuracy, reduction factor, expansion factor and the minimum correction ratio; a stepwise recursive control-based steering traffic allocation method is proposed to calculate the turning traffic volume and realize the scientific and reasonable distribution of the turning traffic volume at road intersections. The calculated turning traffic volume can provide data support...
example 1
[0125] Example 1: When the parameter matrix is type A, calculate and analyze the turning traffic volume in 12 directions at 8 intersections of entrance and exit roads.
[0126] 1. For the research object, see image 3 ;Collect the cross-sectional traffic volume of 8 entrances and exits, that is, Q 1 ~Q 8 , see Table 1.
[0127] 2. Establish the steering relationship matrix R at the intersection. There are 12 turning traffic volumes at this road intersection, and their turning relationship matrix is shown in Table 2.
[0128] 3. Set parameters.
[0129] Set nine parameters: parameter matrix type, parameter matrix, threshold value of each turning traffic volume, maximum number of iterations, accumulative section traffic volume accuracy, single section traffic volume accuracy, reduction factor, expansion factor and minimum correction ratio. See Table 3. Among them, refer to Table 3-1 for the parameter matrix; refer to Table 3-2 for other parameters.
[0130] 4. Calcula...
example 2
[0134] Example 2: When the parameter matrix is type B, calculate and analyze the turning traffic volume in 12 directions at 8 entrance and exit intersections.
[0135] 1. For the research object, see image 3 ; Collect cross-sectional traffic volume of 8 entrances and exits, see Table 1.
[0136] 2. Establish the steering relationship matrix R at the intersection. There are 12 turning traffic volumes at this road intersection, and their turning relationship matrix is shown in Table 2.
[0137] 3. Set parameters.
[0138] Set nine parameters: parameter matrix type, parameter matrix, threshold value of each turning traffic volume, maximum number of iterations, accumulative section traffic volume accuracy, single section traffic volume accuracy, reduction factor, expansion factor and minimum correction ratio. See Table 7. Among them, refer to Table 7-1 for the parameter matrix; refer to Table 7-2 for other parameters.
[0139] 4. Calculate the steering traffic volume dis...
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