Varying-period signal coordinating and controlling method of road intersections

A technology of coordinated control and intersections, which is applied in the traffic control system of road vehicles, traffic control system, traffic signal control, etc., can solve the problems of waste of green light time, long queues, etc., and achieve the goal of improving the effect and improving the utilization rate of green lights Effect

Active Publication Date: 2015-12-23
TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
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Problems solved by technology

[0006] The present invention provides a signal coordination control method between road intersections under variable cycle, which can solve the problems existing in the existing arterial intersection signal coordination control method that the cycle of traffic signal control cannot be well controlled according to the transformation o...

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  • Varying-period signal coordinating and controlling method of road intersections

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Embodiment Construction

[0024] See figure 1 , a signal coordination control method between road intersections under variable periods, which includes the following steps:

[0025] (1) Select the intersection at the starting end of the coordination direction as the initial reference point of the phase difference, the absolute phase difference value of the intersection is set to 0, the intersection number i=1, and the number i of other intersections along the coordination direction= 2,3,4,...,n.

[0026] (2) Collect the traffic flow in each flow direction and the total traffic flow H of each intersection on the coordination direction i , road capacity C i , and vehicle arrival rate D i traffic flow data such as the time change curve of , and calculate the weight value of each intersection according to the traffic flow data in

[0027] (3) Use the HCM method to calculate the optimal signal period T of each intersection under the single-point control mode i Compared with green letter k i ;

[0...

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Abstract

The invention provides a varying-period signal coordinating and controlling method of road intersections. The method solves the problems that main road intersection signal coordinating and controlling methods in the prior art cannot flexibly conduct optimization or adjustment of the period, scheme and phase difference of traffic signal control in real time according to traffic flow changes. The method effectively improves the green light utilization rate and passing capability of road intersections, reduces the frequency of vehicle stopping, ensures main road green wave coordination and control effect, achieves quick transition of signal coordinating and controlling schemes at the same time, and eliminates influence to traffic caused during the scheme transition. The method monitors traffic flow data of each intersection in real time, calculates the optimal coordinating and controlling common period in real time, optimizes and adjusts city main road traffic signal coordinating and controlling schemes, selects the optimal phase difference, enables the main road traffic signal coordinating and controlling schemes to adapt to road traffic flow changes quickly, and thus improves the effect of main road traffic signal coordinating and controlling.

Description

technical field [0001] The invention relates to the technical field of intelligent traffic signal system control, in particular to a signal coordination control method between road intersections under variable periods. Background technique [0002] In urban traffic, traffic arteries bear a large amount of traffic load, and the smooth flow of arterial traffic often has a great effect on improving urban traffic conditions. The coordination and optimization of the intersection signals makes the traffic flow meet the green light signal at the intersection without stopping and waiting, forming a "green wave belt" for two-way traffic flow on the road, thereby greatly improving traffic congestion. [0003] At present, the signal coordination control schemes between intersections on urban arterial roads all adopt a fixed signal cycle, and the signal control cycle and scheme of each intersection cannot be adjusted in real time according to changes in traffic flow, resulting in the gr...

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Application Information

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IPC IPC(8): G08G1/08G08G1/081
Inventor 卢健付强顾金刚代磊磊祖永昶华璟怡
Owner TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
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