Intersection control time period and phase timing design and closed-loop verification method

Abstract

The invention discloses an intersection control time period and phase timing design and closed-loop verification method. An existing intersection time period division method is broken through, and thefinal purpose is to serve for signal phase timing design. Intersection control time period and signal phase timing integrated design is carried out according to traffic flow change trends of different flow directions of the intersection, and the intersection control time period and signal phase timing design is verified by parameters such as traffic flow direction saturation, so that the rationality of the intersection control time period and phase timing design is further improved, the intersection vehicle delay is reduced, and the traffic efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of traffic signal control, in particular to an intersection control period and phase timing design and a closed-loop verification method. Background technique [0002] With people's travel needs at different times of the day, most urban intersections have relatively obvious traffic flow in the morning and evening peaks, flat peaks, and nighttime low peak periods. Signal timing scheme to adapt to traffic changes and reduce vehicle delays. Therefore, the control period division of the intersection is designed to serve the signal phase timing, and the signal phase timing of the intersection is based on the traffic flow in each direction of the intersection as the design basis, and finally the traffic flow is the intersection period division and An important calculation parameter for evaluating the rationality of signal timing design. There are three problems in the proposed intersection time division method: ...

AI Technical Summary

Problems solved by technology

There are three problems in the proposed intersection time division method: first, the intersection time division is completely based on the change trend of traffic volume in a day, and the signal phase timing of the intersection is not considered. Serving the phase timing of signals at intersections; the second is that it fails to analyze the changing trend of traffic flow in multiple flow directions at intersections. Usually, the change interval of the total flow at intersections is used as the basis for time division, which is likely to cause a certain direction in a certain period of time. The signal timing is unreasonable; the third is that there is no closed-loop verification method after the initial division of the time period, and it is not known whether the signal phase timing scheme formed in each time period can meet the actual traffic flow demand

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