Coordination control method of dissymmetric artery

Abstract

The invention discloses a coordination control method of a dissymmetric artery. Dissymmetric phases are designed according to a flow ratio of each strand traffic flow in the artery, the flow ratio of the traffic flow in the same phase is guaranteed to be close to the greatest extent, and waste of green time is reduced; in order to improve the utilization efficiency of the green time and guarantee the normal operation of each strand traffic flow at the same time, a computing method of each phase green time permitting intervals is set; a one-way coordination control best phase difference is put forward according to a gap of intersection, traffic flow travel speed and time needed by queued vehicle releasing of the coordination phase traffic flow in red time; at last the phase and phase sequence of the intersection, the coordination phase difference and the coordination green time are ensured according to each phase green time permitting intervals and the one-way best phase difference. The coordination control method can optimize a bi-directional coordination control effect when the artery traffic flow is in an unbalancing state, the phenomena that vehicles in the artery are delayed are reduced, and the utilization efficiency of a green light is improved. The coordination control method has practical engineering application value in an aspect of urban road traffic control management.

Description

technical field [0001] The invention relates to a traffic signal control method, in particular to an asymmetric arterial road coordination control method. Background technique [0002] At present, with the rapid increase of economic development and the number of urban motor vehicles, the problem of urban road traffic congestion is becoming more and more serious. As the main artery of the urban road network, urban arterial roads bear the main pressure of traffic flow operation. The smoothness of urban arterial roads is directly related to the quality of traffic flow operation in the entire road network. In the urban road network, when single-point signal control is set independently at each intersection, due to lack of coordination, vehicles often encounter red lights at the intersection, stopping and driving at times, resulting in vehicle delays and increased parking times. In order to solve the contradiction between the temporal-spatial continuity of traffic flow and the s...

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: In order to overcome the shortcomings of previous coordinated control methods that are not suitable for the unbalanced state of traffic flow on urban arterial roads, the present invention provides a coordinated control method for asymmetric arterial roads, which realizes unbalanced traffic flow by optimizing the coordination phase sequence and coordinating the phase difference of traffic flow Coordinated Control of Asymmetric Arterial Roads

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