Rear-end collision real-time prediction method aimed at frequently jammed section of expressway

Abstract

The invention discloses a rear-end collision real-time prediction method aimed at a frequently jammed section of an expressway. Firstly, a traffic flow detector used for collecting real-time traffic flow data of all sections of the expressway is installed on the expressway (generally the upstream section of a bottleneck area). When a rear-end collision occurs, vehicle following running tracks are analyzed, a rear-end collision risk real-time prediction logistic model of the frequently jammed section of the expressway is built, and model parameters are calibrated according to traffic flow data by five minutes before the collision occurs. The method overcomes the defect that effective real-time prediction of the rear-end collision of frequently jammed section of the expressway cannot be conducted in the past, rear-end collision risks can be estimated in real time according to the traffic data collected by the traffic flow detector on the expressway, and moreover, dynamic traffic control is utilized to control and prevent the rear-end collision. The method has important time application value and wide application prospects in China.

Description

technical field [0001] The present invention proposes a real-time prediction method for rear-end collision accidents on frequently congested expressway sections according to the traffic flow characteristics of the upstream sections of traffic bottlenecks on frequently congested expressways and the occurrence conditions of rear-end collision accidents, which belongs to the technical field of intelligent traffic management and traffic safety . Background technique [0002] With the rapid growth of my country's economy, the expressway has experienced rapid development by leaps and bounds. By the end of 2011, the total mileage of expressways in my country exceeded 85,000 kilometers, ranking second in the world, and the mileage of expressways within cities and between cities increased rapidly. In recent years, with the rapid growth of motor vehicle ownership, the problem of expressway traffic safety has become more and more serious. There are several traffic bottlenecks on the ...

AI Technical Summary

Problems solved by technology

[0004] In the past, the unique traffic flow operation characteristics and operation rules of the frequently congested sections of the expressway were not considered. The existing inventions and technologies are not suitable for the frequently congested sections of the expressway, and cannot perform real-time prediction of rear-end collision accidents on the frequently congested sections

Images