Viaduct ramp intelligent inducing control method and device based on array radars

Abstract

The invention relates to a viaduct ramp intelligent inducing control method and device based on array radars. The viaduct ramp intelligent inducing control method comprises the following steps that multiple array radar detection devices are installed on a viaduct, and an entrance ramp inducing screen and an exit ramp inducing screen are arranged in front of an entrance ramp and an exit entrance ramp of the viaduct respectively; real-time traffic parameter information of a road section in a detection area is obtained; the average traffic flow density parameter of the road section in the detection area is calculated, and the real-time traffic operation index of the road section in the detection area is extracted based on a density-operation index model; the average traffic operation index of the entrance ramp and the average traffic operation index of the exit ramp are calculated; the traffic operation state grade of each ramp is determined, an intelligent traffic inducing model is established, and intelligent traffic inducing decisions are displayed in real time by the entrance ramp inducing screen and the exit ramp inducing screen. By the adoption of the viaduct ramp intelligent inducing control method and device, the accuracy of viaduct traffic event detection and the traffic flow operation efficiency can be improved.

Description

Technical field [0001] The invention relates to the technical field of intelligent traffic guidance for urban elevated ramps, in particular to an array radar-based intelligent guidance method and device for elevated ramps. Background technique [0002] With the substantial increase in urban car ownership, the contradiction between traffic flow and road supply and demand has become increasingly prominent, and the emergence of urban elevated roads has greatly increased the choice of travel routes. However, while urban elevated highways bring smooth and fast travel, they also bring contradictions. At peak hours, elevated highways become high-altitude parking lots, which greatly delays public travel and wastes social resources. [0003] Intelligent traffic guidance is an effective way to solve elevated traffic congestion. Most of the traditional methods are to adjust the elevated traffic flow by manually closing the ramps, which delays emergency response and wastes labor costs. Reali...

AI Technical Summary

Problems solved by technology

[0004] The currently used ramp traffic guidance algorithm is too blunt to set a threshold according to the change of a certain traffic parameter to control the signal, such as traffic flow, speed, density, etc., and does not comprehensively set and detect multiple parameters for comprehensive analysis and processing. The accuracy is not high, which will cause the system to misjudge the state

Wrong judgment may lead to traffic load on the road section, resulting in stagnation; if travelers cannot control the congestion information of the elevated road in real time, they will continue to drive into the elevated road, resulting in the spread of traffic congestion on the ramp, frequent accidents, and affecting the traffic operation efficiency of the entire city

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