Active prevention and control method and system for highway traffic accident scene risk

Abstract

The invention provides an active prevention and control method for highway traffic accident site risk. The method can give an alarm in advance, prevent vehicles from intruding into an accident site, give a more targeted warning method, and greatly reduce the occurrence probability of secondary accidents. According to the technical scheme of the invention, the method comprises the following steps: predicating the risk of a secondary accident in an accident scene based on the traffic flow risk pre-judgment model; calculating to obtain a threshold value corresponding to the traffic flow characteristic element data through historical traffic data of the traffic flow of the road section where the accident scene is located, and training a traffic flow risk pre-judgment model through the threshold value corresponding to the traffic flow characteristic element data; acquiring environment element data and traffic flow characteristic element data of an accident scene, and inputting the data into a trained traffic flow risk pre-judgment model for risk pre-judgment; implementing different early warning measures according to different risk levels, and generating the method on a more targeted warning method. Meanwhile, the invention further discloses an active prevention and control system for the highway traffic accident site risk.

Description

technical field [0001] The invention relates to the technical field of intelligent traffic control, in particular to a method and system for active prevention and control of on-site risk of expressway traffic accidents. Background technique [0002] The scene of a road traffic accident is generally located in the carriageway, surrounded by traffic flow, especially on the expressway, where the high speed is superimposed on the driver's fatigue driving, drunk driving, distracted driving and other serious illegal behaviors, and secondary accidents often occur. According to the safety protection requirements of the road traffic accident handling site of the public security department, an early warning area and a warning area should be set up at the expressway accident site. The warning area refers to the area delineated within a certain range upstream and downstream of the accident site, and the entry of irrelevant vehicles and personnel is prohibited. The early warning area re...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of poor timeliness and poor warning effect in the traffic accident site protection methods in the prior art, the present invention provides an active prevention and control method for highway traffic accident site risks, which can call the police in advance to prevent vehicles from breaking into the accident site, and at the same time Provide a more targeted warning method, which greatly reduces the probability of secondary accidents

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