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Road safety analysis method and system based on highway three-dimensional space alignment

A technology of three-dimensional space and analysis method, which is applied in the field of road safety analysis based on the three-dimensional space alignment of roads, and can solve problems such as the lack of in-depth research on road safety evaluation

Active Publication Date: 2021-12-21
SOUTH CHINA UNIV OF TECH
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  • Abstract
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Problems solved by technology

There is no in-depth research on road safety evaluation under three-dimensional alignment

Method used

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  • Road safety analysis method and system based on highway three-dimensional space alignment
  • Road safety analysis method and system based on highway three-dimensional space alignment
  • Road safety analysis method and system based on highway three-dimensional space alignment

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Embodiment Construction

[0065] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0066] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific ...

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Abstract

The invention discloses a road safety analysis method and system based on the three-dimensional space alignment of the road, wherein the method includes the following steps: obtaining the design data of the three-dimensional space of the road alignment; combining the design data and the preset road section combination type to divide the road alignment For multiple road sections; calculate the weighted curvature difference, average curvature change rate and torsion difference of the road section according to the design data; combine the weighted curvature difference, average curvature change rate, torsion difference and road safety analysis model to obtain the risk coefficient of the road section, according to The risk factor analyzes the safety of the road. The present invention starts from the geometric invariant curvature of the space curve, obtains the weighted curvature difference, the average curvature change rate and the torsion difference of the road section, solves the risk coefficient of the road section, and conducts safety analysis on the combination of road alignments through a quantitative method, which breaks away from the traditional The restriction of highway design on the qualitative description of alignment combination can be widely used in the field of traffic safety analysis.

Description

technical field [0001] The invention relates to the field of traffic safety analysis, in particular to a road safety analysis method and system based on the three-dimensional alignment of roads. Background technique [0002] The quality of road alignment (that is, road alignment) not only affects the driver's operating conditions and physiological and psychological conditions during driving, but also determines the safety guarantee of vehicles during driving and the capacity guarantee of road sections. The ratio of return on investment and the quality of road alignment design are the most fundamental reasons that affect road safety and economy. Considering the control points such as terrain and ground features near the road in the road alignment, while ensuring that the road alignment meets the current design standards and specifications of the road traffic industry, and at the same time ensuring driving safety to the greatest extent, it has become the focus of the current d...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/26G06F30/20
CPCG06Q10/06393G06Q50/26G06F30/20
Inventor 王晓飞姚江贝刘运韬叶志宏
Owner SOUTH CHINA UNIV OF TECH
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