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Road safety analysis method and system based on three-dimensional spatial line shape of road

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 highways, and can solve problems such as the lack of in-depth research on road safety evaluation.

Active Publication Date: 2020-08-25
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

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

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  • Road safety analysis method and system based on three-dimensional spatial line shape of road
  • Road safety analysis method and system based on three-dimensional spatial line shape of road
  • Road safety analysis method and system based on three-dimensional spatial line shape of road

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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 a three-dimensional spatial line shape of a road. The method comprises the following steps: acquiring design data of the three-dimensional spatial line shape of the road; dividing the road alignment into a plurality of road sections in combination with the design data and a preset road section combination type; calculating aweighted curvature difference, an average curvature change rate and a flexibility difference of the road section according to the design data; and combining the weighted curvature difference, the average curvature change rate, the deflection difference and the road safety analysis model to obtain a risk coefficient of the road section, and performing safety analysis on the road according to the risk coefficient. The method starts from the geometric invariant curvature of a space curve; according to the method, the weighted curvature difference, the average curvature change rate and the deflection difference of the road section are obtained, the risk coefficient of the road section is solved, the safety analysis is performed on the highway linear combination through a quantitative method,the limitation of the traditional highway design on the qualitative description of the linear combination is eliminated, and the method can be widely applied to 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 Applications(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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