Trunk line section division method under green wave coordination control

Abstract

The invention discloses a trunk road section classification method under green-wave coordinated control. According to inherent attributes of a road section and changes of traffic parameters, similarities of adjacent intersections and road sections, and constraints of traffic flow models and traffic flow density in a macroscopic fundamental diagram are utilized to divide one trunk line into a plurality of road sections, on that basis, the coordinated control is carried out; the trunk road section classification method under the green-wave coordinated control uses the road attributes in the macroscopic fundamental diagram for classifying the road section with larger changes of the trunk line traffic parameters to solve the problem that the green-wave coordinated control of the traffic trunk line is narrow in bandwidth. Furthermore, the method is based on real-time data, so that the dynamic adjustment and real-time feedback functions are achieved, and the adaptability and accuracy of the method are increased.

Description

technical field [0001] The invention belongs to the technical field of trunk line section division methods, and in particular relates to a trunk line section division method under green wave coordinated control. Background technique [0002] The urban traffic control system is the core component of urban traffic management and control. It reasonably allocates the right of way of the road to traffic in different directions in terms of time by controlling the traffic light time, phase difference change, and phase sequence of signal lights. Traffic flow can run smoothly and orderly. Based on the operating characteristics of traffic flow, the traffic signal green wave control method aimed at improving the efficiency of arterial traffic came into being. When the fleet passes through the intersection continuously, the number of stops can be reduced as much as possible, which is the so-called "green light all the way, smooth all the way". [0003] In theory, this function can be r...

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Problems solved by technology

[0010] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a method for dividing arterial road sections under the coordinated control of green waves, and dynamically divides traffic arterial sub-areas based on the free flow speed of road sections, so as to increase the bandwidth of green wave belts and improve Coordinated control adaptability, to solve the problem existing in the prior art that when there is a long distance, the traffic volume changes greatly and the distribution is uneven, the coordination effect of the main line under the signal coordination control is not good, and it is easy to obtain a narrow bandwidth problem

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