Dynamic bidirectional green wave control method based on traffic state identification

Abstract

The invention provides a traffic artery bidirectional dynamic green wave control method based on traffic state identification. The traffic artery bidirectional dynamic green wave control method basedon traffic state identification combines a traffic state identification method based on K-means clustering analysis method and a bidirectional green wave control model based on a number solution method, and can dynamically adjust a bidirectional green wave control scheme according to the change of traffic state of a road network. The traffic artery bidirectional dynamic green wave control method based on traffic state identification includes the steps: acquiring traffic parameters, discriminating the traffic state, calculating each assumed ideal signal spacing, determining the movement quantity of a practical signal, relative to each ideal signal, determining the appropriate ideal signal position, designing a non-stop running passage tape, and determining the system tape speed. The trafficartery bidirectional dynamic green wave control method based on traffic state identification can significantly reduce the delay and parking rate of urban road traffic flow, can improve the operationefficiency of urban roads, and can provide powerful technical support for urban road green wave control.

Description

technical field [0001] The invention relates to the technical field of green wave control on arterial lines, in particular to a dynamic two-way green wave control method based on traffic state discrimination. Background technique [0002] Urban traffic arteries usually bear huge traffic loads. How to reduce traffic delays and parking times on arterial lines has become one of the focuses of research on optimal control of urban traffic signals in recent years. People study to connect a group of adjacent traffic signals on a main road, and coordinate them to control, so that the traffic flow on the main road can continuously get green light signals one after another, and pass through all intersections along the way unimpeded. Green wave traffic in the usual sense. Green wave traffic emerges along with the trend of urban sustainable development, which fully embodies the idea of ​​people-oriented and harmony between man and nature. However, in the traditional green wave traffic...

AI Technical Summary

Problems solved by technology

However, in the traditional green wave traffic, the formulation of the timing scheme and control strategy of the traffic signal control system is mainly based on historical or empirical data. Once the control scheme is formed, it is rarely changed. It belongs to the static green wave control method.

Once the road network traffic changes, the control effect of the method will be greatly affected

[0003] At present, most of the intersections in the urban road network adopt a single-point signal control method, and independently carry out timing, without considering the linkage with adjacent intersections, so that vehicles often encounter red lights at several intersections continuously, resulting in extremely inconvenient driving. Greatly affected the traffic capacity of the main road

At the same time, on some roads, the traffic state fluctuates greatly, and the traditional static green wave control method cannot achieve a good coordinated control effect.

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