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Motor vehicle stream-oriented intersection traffic pre-signal control method

A technology of intersection and signal control, applied in the direction of controlling traffic signals, etc., can solve problems such as the decrease of traffic capacity at intersections, the adjustment of the timing scheme of pre-signals and main signals, and motor vehicle congestion.

Active Publication Date: 2013-09-18
哈尔滨工业大学高新技术开发总公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing intersection traffic pre-signal control method determines the distance between the pre-signal stop line and the main stop line based on subjective experience, and the timing scheme of the pre-signal and main signal cannot be adjusted according to the dynamic change of traffic flow, As a result, the traffic capacity of the intersection is reduced and the problem of motor vehicle congestion is caused. A traffic pre-signal control method at the intersection oriented to motor vehicle flow is provided.

Method used

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specific Embodiment approach 1

[0020] Specific implementation mode 1. Combination Figure 1-Figure 3 This specific embodiment will be described. A traffic pre-signal control method at a crossing oriented to motor vehicle flow, comprising the steps of:

[0021] Step 1: Carry out the organization of intersection entrance lanes and the layout of signal control facilities;

[0022] Step 2: Collect static traffic data according to the layout of signal control facilities completed in Step 1;

[0023] The static traffic data includes the width of each lane of the intersection, the saturated traffic flow rate of each entrance lane of the intersection and the green light loss time of each phase of the intersection;

[0024] Step 3: Make the intersection adopt the four-phase signal control method, and the phase sequence of the pre-signal and the main signal are set to be the same;

[0025] Step 4: Using the signal control facilities described in step 1 and the static traffic data described in step 2, the coordinat...

specific Embodiment approach 2

[0026] Embodiment 2. The difference between this embodiment and embodiment 1 is that step 1: the process of organizing the intersection entrance lane organization and laying out signal control facilities is as follows:

[0027] Step 1A: Determine the length of the waiting area for each entrance direction of the intersection; the waiting area is the area between the main signal stop line and the pre-signal stop line;

[0028] The length L of the waiting area in the direction of the i-th entrance i for:

[0029] L i =1.2×L imax +20

[0030] Unit: m, where:

[0031] L i max = max ( C 0 × q ‾ il , C 0 × q ‾ is ...

specific Embodiment approach 3

[0045] Specific embodiment three, combine Figure 4 This specific embodiment will be described. The difference between this embodiment and the second embodiment is the fourth step: using the signal control facility described in step one and the static traffic data described in step two, the main signal and the pre-signal are performed according to the four-phase signal control method described in step three The process of coordinated control is:

[0046] Step 4A: Clear the initial data of the induction coil detector;

[0047] Step 4B: The main signal is turned on in sequence according to the preset phase sequence, and the pre-signal is turned on according to the sequence of the main signal;

[0048] The corresponding relationship of the green light phase is: when the green light of the i-th phase of the main signal starts to light up, the i-th phase and the j-th phase green light of the pre-signal start to light up synchronously;

[0049] j = mod(i+1, 4)+1

[0050] i=mod(i...

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Abstract

The invention discloses a motor vehicle stream-oriented intersection traffic pre-signal control method and relates to an intersection traffic signal control method. The invention aims to solve the problems that the intersection traffic capacity is reduced and motor vehicles are jammed due to the fact that the distance between a pre-signal stop line and a main stop line is determined according to subjective experiences and the timing plane of a pre-signal and a main signal cannot be regulated according to dynamic changes of traffic flow by adopting a traditional intersection traffic pre-signal control method. The motor vehicle stream-oriented intersection traffic pre-signal control method comprises the following steps of: performing intersection entrance lane organization and signal control facility layout; performing static traffic data acquisition according to the signal control facility layout finished in the step I; enabling an intersection to adopt a four-phase signal control method, and enabling the pre-signal and the main signal to be same in phase and phase sequence setting; and performing coordination control of the main signal and the pre-signal by utilizing a signal control facility in the step I and static traffic data in the step II according to the four-phase signal control method in the step III. The motor vehicle stream-oriented intersection traffic pre-signal control method disclosed by the invention can be widely applied to intersections to perform traffic signal control.

Description

technical field [0001] The invention relates to a traffic signal control method at an intersection. Background technique [0002] At present, the traffic congestion in major cities in my country is gradually deteriorating, and the number of oversaturated intersections is increasing, which seriously hinders the development of social economy. The main reason for the phenomenon of oversaturation at intersections is that the arriving traffic flow is greater than the capacity of the intersection, so increasing the capacity of intersections has become an important means to solve traffic congestion. The traffic capacity of the intersection is closely related to the lane organization and signal timing scheme. The pre-signal control method controls the operation of motor vehicle flow by adding a stop line and a group of signal lights behind the stop line at each entrance direction of the intersection. From perfecting the lane The two angles of organization and signal timing plan can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07G08G1/08
Inventor 别一鸣
Owner 哈尔滨工业大学高新技术开发总公司
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