Signal intersection straight-left conflict and influence analysis method

A technology of impact analysis and intersection, applied in traffic flow detection, traffic control system, traffic control system of road vehicles, etc., can solve the problems of traffic information unable to analyze vehicle conflicts, lack of overall intersection vehicles, etc.

Active Publication Date: 2017-03-15
SOUTHEAST UNIV
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  • Claims
  • Application Information

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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 met

Method used

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  • Signal intersection straight-left conflict and influence analysis method

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Embodiment

[0039] A signal intersection straight-left conflict and its impact analysis method, comprising the following steps:

[0040] S1. Obtain the detection data of the smart checkpoint arranged at the entrance of the signalized intersection. There is a dedicated left lane at the signalized intersection, but there is no dedicated left-turn phase in the signal timing scheme; from it, select the lane where vehicles pass in the straight-left phase Corresponding detection data, including lane number, passing time, license plate number.

[0041] S2. Using the bayonet equipment vehicle snapshot section as the passing detection section, according to the passing detection data of the left-turn lane and the opposite straight lane, generate a passing signal map of the left-turn lane and the opposite straight lane at the detection section.

[0042] S21. According to the passing detection data obtained in step S1, draw the discrete-time signal S of passing the vehicle in the detection section of...

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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...

Claims

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Application Information

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IPC IPC(8): G08G1/01
CPCG08G1/0104
Inventor 陆振波夏井新安成川
Owner SOUTHEAST UNIV
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