Varying-period signal coordinating and controlling method of road intersections

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...

AI Technical Summary

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 of traffic flow, The scheme and phase difference can be optimized and adjusted in real time and flexibly, and there may be defects such as waste of green light time or excessive queues during the switching process of different signal coordination control schemes, so as to improve the effect of green wave coordination control of trunk lines

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