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Adaptive intersection traffic signal control method of trunk road priority

A technology of traffic signals and control methods, which is applied in the direction of control of traffic signals, etc., can solve problems such as no public reports.

Inactive Publication Date: 2015-09-16
YUNNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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  • Adaptive intersection traffic signal control method of trunk road priority
  • Adaptive intersection traffic signal control method of trunk road priority
  • Adaptive intersection traffic signal control method of trunk road priority

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0063] Embodiment: Carry out the self-adaptive traffic signal control of arterial priority intersection for a certain intersection, refer to Figure 1-Figure 4 :

[0064] (1) Initialization

[0065] According to historical statistical data and real-time monitoring equipment to obtain data, the data is updated to obtain the intersection and vehicle driving parameters in j period as shown in Table 1.

[0066] Table 1 Vehicle driving parameters table of a certain intersection j period

[0067] phase number 1 (arterial road) 2 (non-arterial road) 3 (non-arterial road) 4 (non-arterial road) Intersection length L(m) 20 20 20 20 Vehicle average braking time t brake (s) 2 2 2 2 Saturation flow rate d i,j (pcu / h / lane) 1800 1800 1800 1800 Vehicle arrival rate s i,j (pcu / h) 720 360 360 180 average speed v i (km / h) 20 20 20 20

[0068] (1) Calculate the base green light timing

[0069] According to the parameters gi...

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Abstract

The invention discloses an adaptive intersection traffic signal control method of trunk road priority. The method is characterized in that firstly, an intersection is described as a switching service system, a channelized lane is taken as a queue, a traffic signal controller is served as a center controller, a complete service mode is used to calculate time of each channelized lane which occupies intersection resources and each historical monitoring data of going through the intersection; simultaneously, longest green light time upper limit is arranged on the signal controller, when trunk road green light time is longer than the green light time upper limit, the signal controller calculates a prolongation green light time probability according to backoff algorithm so as to prolong the green light time probability and allow the trunk road green light time to prolong; when tutoring green time is longer than the green light time upper limit, green light signal timing is performed according to the green light time upper limit. The method in the invention is conducive to traffic efficiency increase.

Description

technical field [0001] The invention belongs to the field of intelligent traffic control and automation science and technology, and in particular relates to an intersection adaptive traffic signal control method with main road priority. Background technique [0002] With the accelerated development of the urbanization process, the number of urban residents increases, and the number of urban vehicles increases rapidly. The traffic congestion that follows has become an important factor affecting the quality of work and life of residents. Under the condition of not considering traffic accidents, road intersections are usually the origin of traffic jam formation. On the premise that the road infrastructure construction and urban planning are basically fixed, the traffic capacity of the intersection can be improved by setting up traffic signals reasonably. The resulting air, noise pollution and other problems. [0003] Traditional traffic signal control usually adopts a fixed t...

Claims

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Application Information

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IPC IPC(8): G08G1/07
CPCG08G1/07
Inventor 官铮张学杰钱文华
Owner YUNNAN UNIV
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