Signal intersection straight-left conflict and influence analysis method

Abstract

The invention discloses a signal intersection straight-left conflict and influence analysis method. The method comprises the following steps: getting detection data of a smart toll gate placed in an entrance lane of a signal intersection; with a vehicle capture section of the toll gate device as a vehicle passing detection section, generating a vehicle passing signal map of a left lane and an opposite straight lane on the detection section according to the vehicle passing detection data of the left lane and the opposite straight lane; generating a vehicle passing interval discrete sequence of the straight lane, analyzing the passing characteristics of vehicles going straight according to the amplitude characteristics, and judging whether there is a left-turn vehicle cutting in during the straight-left phase signal release stage according to the vehicle passing signal map of the left lane and the straight lane; and evaluating the severity of influence of straight-left conflict. According to the method, the cut-in behavior of left-turn vehicles is identified first, and then, the influence of the cut-in behavior of left-turn vehicles on the traffic efficiency of opposite vehicles going straight is analyzed, and the traffic order and traffic efficiency of vehicles at an intersection are evaluated.

Description

technical field [0001] The invention relates to the field of traffic control, in particular to a straight-left conflict at a signalized intersection and an analysis method for its impact. Background technique [0002] Signalized intersections realize the temporal and spatial separation of traffic conflicts at intersections through traffic signal control methods. In practical applications, there is often a situation where the left-only lane lacks a dedicated phase for left-turning. In the same phase, both left-turning and straight-going traffic are released at the same time, resulting in conflicts between left-turning traffic flow and opposite through-going traffic flow. The "Regulations for the Implementation of the Road Traffic Safety Law" stipulates that turning motor vehicles give way to straight vehicles. However, observing the actual traffic conditions, it can be found that it is not uncommon for left-turning vehicles to rush ahead, especially during peak hours. May c...

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Problems solved by technology

[0005] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a straight-left conflict at a signalized intersection and its impact analysis method, which solves the problem in the prior art that cannot be analyzed due to the lack of overall traffic information at the intersection. The problem of analyzing the actual vehicle conflict situation

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