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Road intersection traffic signal system control method

A technology of traffic signals and control methods, applied in the field of traffic operation management at road intersections, can solve the problems of inability to calculate the location of collisions, poor versatility, etc.

Active Publication Date: 2016-04-13
苏州六头牛信息科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the location of vehicle collisions on the road is random, and may occur in front of the fixed detector or behind the fixed detector. The method disclosed in the above patent document cannot calculate the actual location of all collisions, and has poor versatility.

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  • Road intersection traffic signal system control method
  • Road intersection traffic signal system control method

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Embodiment Construction

[0054] The present invention is described in detail below in conjunction with accompanying drawing:

[0055] refer to figure 1 The layout of the shown queuing length detection area, the road intersection traffic signal system control method of the present invention, comprises the following steps:

[0056]S1: set up the road intersection queuing length model, calculate the road intersection queuing length by the road intersection queuing length model; further comprise the following steps:

[0057] S11: Establish a road intersection queue length model:

[0058] L q =(Q 2 -Q 1 )*L C

[0059] Among them: L C is the sum of the body length and the average front distance, Q 1 : is the traffic volume passing through the detector I during the green light time period of this phase in one cycle, Q 2 : is the traffic volume passing through the detector II during the green light time period of this phase in one cycle;

[0060] The road intersection queue length is calculated thro...

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Abstract

The invention discloses a road intersection traffic signal system control method. The method comprises the following steps that 1, a road intersection queuing length model is built, and the road intersection queuing length is calculated through the road intersection queuing length model; 2, the position of a single-entrance-lane saturation point is determined according to the formula (1), and the position of a single-entrance-lane spill point is determined according to the formula (2); 3, the traffic state of single entrance lanes is determined according to the position of the saturation point and the position of the spill point in the second step, and the traffic state of a road intersection is determined according to the traffic state of each entrance lane of the road intersection; 4, a traffic signal system of the road intersection is controlled according to the determination result of the traffic state of the road intersection in the third step. According to the road intersection traffic signal system control method, the queuing length can be more accurately calculated, the traffic state of the road intersection is determined, and the traffic signal system control accuracy is improved.

Description

technical field [0001] The invention relates to a control method for a traffic signal system at a road intersection, which is applied to the field of traffic operation management at the road intersection. Background technique [0002] In recent years, the problem of traffic congestion at urban road intersections in my country has become increasingly serious. As the number of vehicles continues to rise, urban roads are increasingly congested, resulting in frequent urban road traffic accidents. Once congestion occurs on the road, it will directly reduce the operating efficiency of the road network and easily induce secondary accidents. An effective way to reduce the negative impact of traffic accidents is to calculate the impact of congestion in real time. According to the calculation, the time when the road reaches the maximum queuing length can be obtained, which provides a reliable theoretical basis for taking effective measures to deal with congestion. Queue length is an...

Claims

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Application Information

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IPC IPC(8): G08G1/01G08G1/065G08G1/08
CPCG08G1/0133G08G1/065G08G1/08
Inventor 曾小清韩如文石红云杨林翔袁腾飞邹临风王刚
Owner 苏州六头牛信息科技有限公司
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