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Road junction traffic conflict detection and safety evaluation method based on two-dimensional laser scanners

A traffic conflict, two-dimensional laser technology, applied in traffic flow detection and other directions, can solve problems such as lack of technical practicability, and achieve the effect of convenient research, low cost, and ensuring traffic safety.

Inactive Publication Date: 2010-10-06
BEIHANG UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

These technologies only carry out data fusion, tracking of moving targets and direction discrimination, but do not involve automatic detection and safety evaluation of traffic conflicts, and the practicability of the technology is lacking.

Method used

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  • Road junction traffic conflict detection and safety evaluation method based on two-dimensional laser scanners
  • Road junction traffic conflict detection and safety evaluation method based on two-dimensional laser scanners
  • Road junction traffic conflict detection and safety evaluation method based on two-dimensional laser scanners

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing, the embodiment of this aspect is described in detail: this embodiment is implemented under the premise of the technical solution of this aspect, has provided detailed implementation and specific operation process, but protection scope of the present invention is not limited to the following the described embodiment.

[0035] (1) Put a laser scanner ( figure 1 , where 1, 2, 3, and 4 represent the placement positions of scanners 1, 2, 3, and 4 respectively). Set the coordinate system according to the on-site marking status, and measure the position and angle of each scanner. For the convenience of measurement, the x-axis and y-axis of the on-site measurement coordinate system are positioned on two vertical edges; the camera is placed on the road Higher buildings or street lights on the side, in order to take a complete picture of the traffic situation at the intersection, and provide a reference for scanner-based conflict d...

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Abstract

The invention relates to a road junction traffic conflict detection and safety evaluation method based on two-dimensional laser scanners, which is remarkably characterized by comprising the steps of: acquiring and fusing motion parameters of road junction moving objects by using a plurality of two-dimensional laser scanners; computing conflict parameters and serious degree of traffic conflict occurring among traffic participating units by the motion parameter of each moving object; and constructing an intersection safety state evaluation method based on the traffic conflict on the basis of intersection serious conflict statistic and traffic volume statistic to realize the evaluation and the monitoring of the intersection safety state. The road junction traffic conflict detection and safety evaluation method based on the two-dimensional laser scanners has the characteristics of low cost and accuracy and rapidity, brings convenience to the research of the road junction traffic conflict, is beneficial to implementing the effective improvement on the road junction traffic control, and ensures the traffic safety.

Description

technical field [0001] The invention relates to a method for traffic conflict detection and safety evaluation at an intersection. Using multiple two-dimensional laser scanners to collect and fuse the motion parameters of moving objects at intersections, calculate the traffic conflict parameters and conflict severity between traffic participating units through each motion parameter, and calculate the serious conflict statistics and traffic volume statistics at intersections On the basis of this, a method for evaluating the safety status of intersections based on traffic conflicts is constructed to realize the evaluation and monitoring of the safety status of intersections. The invention has the characteristics of low cost, accuracy and speed, brings convenience to the research on traffic conflicts at crossings, is beneficial to effectively improving traffic control at crossings, and ensures traffic safety. Background technique [0002] Related research on traffic conflict te...

Claims

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Application Information

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IPC IPC(8): G08G1/04
Inventor 鲁光泉王云鹏刘淼淼余贵珍田大新
Owner BEIHANG UNIV
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