Overlap phase starting discrimination method based on full arrangement time

Abstract

The invention discloses a lap joint phase starting discrimination method based on full discharge time. The method comprises the following steps: calculating the flow direction single full discharge time of each traffic flow contained in the opposite direction of an intersection in each red light period; when the green light in each opposite direction of the intersection is about to be turned on, performing merging calculation on the single fullness time of each flow direction to obtain flow direction integrated fullness time, and obtaining a flow direction fullness level; according to the flow direction full discharge level, the full discharge level difference between the straight running flow directions and the left turning flow directions of opposite running is calculated; and judging whether the lap joint phase needs to be started or not according to the lap joint phase starting judgment rule and the full arrangement level difference between all the flow directions in the opposite direction in which the green light is about to be turned on. According to the method, the characteristic that the vehicles are discontinuously released to gather at the light-controlled intersection is fully considered, the traffic demand is accurately depicted according to the full discharge time, the lap joint phase is started in time, congestion caused by imbalance of traffic flows is rapidly eliminated, and the traffic control efficiency is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of intelligent control of traffic signals, and in particular relates to a method for judging the activation of overlap phase based on full discharge time. Background technique [0002] With the rapid development of the automobile industry, people's life and travel have been facilitated; however, with the continuous increase in the number of cars, urban traffic is increasingly congested, and the signal control of road intersections can be activated in time according to the difference in traffic demand in different directions. The overlap phase is particularly important. Among them, the directional distribution coefficient is the ratio of the traffic volume in the main driving direction to the two-way traffic volume on the road section. For urban road light-controlled intersections, the directional distribution coefficient can be used to describe the degree of imbalance between opposite traffic flows. However...

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Problems solved by technology

[0003] Aiming at the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a method for judging the activation of the overlapping phase based on the full time, so as to solve the problem that the prior art is too dependent on the cross-section traffic volume, resulting in the inability to activate the overlapping phase in time to eliminate Congestion caused by unbalanced traffic flow

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