Regional control phase timing optimization method based on lane saturation

Abstract

The invention provides a regional control phase timing optimization method based on lane saturation. The method includes identifying a congested road in a region, analyzing relevance roads, i.e., an adjacent signal control intersection and an uncongested traffic direction, i.e., a control direction of the signal control intersection, and adjusting the phase timing to achieve the optimization of aregional signal scheme. According to the regional control phase timing optimization method based on lane saturation, a control direction in which coordination and optimization can be made, i.e., the control direction in which the green light duration can be reduced can be identified according to the road saturation, then the green light duration of an overlapping phase can be adjusted through adding the overlapping phase/making phase late on early off, so that an intersection signal scheme can be effectively optimized through a method of phase sequence adjustment and green light duration optimization. As a result, it is possible to realize the regional optimization of the traffic signal, greatly improve the efficiency of the regional optimization, and solve the problem of area congestion caused by a situation that in a traditional optimization mode, only the green light duration of each phase can be adjusted but demands for green light of the traffic direction under the same stage areinconsistent.

Description

technical field [0001] The invention relates to an area control phase timing optimization method based on lane saturation. Background technique [0002] With the continuous development of the economy, the continuous expansion of the city's scale, the increase in car ownership year by year, the problem of urban road traffic congestion is becoming more and more serious, and intelligent traffic signal control is an important means to alleviate urban traffic congestion and improve the operating efficiency of urban traffic systems one. At present, in the research on the optimization management of traffic signal control, the focus is on single point, main line and area. Among them, regional traffic signal control monitors all traffic signals in the urban area, and optimizes the signal scheme of each intersection with parameters such as green time difference, green light time, and signal cycle. Realize the effect of regional optimization. [0003] Patent CN201410035986.6 proposes...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a lane saturation-based regional control phase timing optimization method to solve the current stage traffic signal regional coordination optimization adjustment method existing in the prior art is relatively complicated, and due to the adjustment of the green light duration of other traffic phases , will lead to congestion in the rest of the road sections in the area, and at the same time, it can only solve the problem of optimizing the green light duration of the phase phase phase of the signal control scheme at each intersection

Images