A Quantitative Evaluation Method of Geological Hazards' Influence on Highway Traffic

A technology of geological disasters and road traffic, applied in the direction of instruments, informatics, etc., to achieve a wide range of effects

Active Publication Date: 2020-09-29
SOUTHWEST UNIVERSITY FOR NATIONALITIES
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Problems solved by technology

[0006] Aiming at the problems in the prior art that are not involved in the quantitative assessment of the degree of influence of geological disasters on highway traffic, the present invention provides a method for quantitatively assessing the degree of influence of geological disasters on road traffic based on traffic accessibility

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  • A Quantitative Evaluation Method of Geological Hazards' Influence on Highway Traffic
  • A Quantitative Evaluation Method of Geological Hazards' Influence on Highway Traffic
  • A Quantitative Evaluation Method of Geological Hazards' Influence on Highway Traffic

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Embodiment Construction

[0023] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] Such as figure 2 As shown, the quantitative evaluation method of the impact degree of geological hazards on highway traffic based on traffic accessibility includes the following steps:

[0025] 1) According to the survey of tourist sources in scenic spots, the number of tourists from major tourist sources in the area is obtained. Among them, airports and railway stations are also counted as tourist sources of road traffic. Estimate the distribution;

[0026] 2) Taking the proportion of the number of tourists arriving at the scenic spot from major tourist sources in the area as the quality of the tourist source area, calculate the road traffic accessibility of each tourist source area in the area to the scenic spot, and the calculation formula is:

[0027]

[0028] In the formula, A It is the weighted average travel time in the ro...

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Abstract

The invention discloses a quantitative evaluation method for the impact degree of geological disasters on road traffic reaching tourist attractions, which includes the following steps: 1) determining the main source of tourists that affect road traffic reaching tourist attractions and the evaluation range; The road traffic accessibility for tourists from the source area to reach the scenic spot; 3) Determine the weight of each geological hazard impact factor in the area, select the key indicators of each impact factor and grade them, and use GIS software to calculate the risk of geological hazards and divide them into zones; 4) The geological disaster risk value within 200 m on both sides of the road is assigned to the corresponding section of the road as a weight, and the road traffic accessibility of each main source of tourists to the scenic spot under this weight is calculated; 5) the road without the influence of geological disasters The road traffic accessibility is divided by the road traffic accessibility under the influence weight of geological disasters, and the impact index of geological disasters on road traffic in scenic spots is obtained, so as to quantitatively evaluate the impact degree of geological disasters on road traffic in scenic spots.

Description

technical field [0001] The invention relates to a method for quantitatively evaluating the degree of influence of geological disasters on road traffic, in particular to a method for quantitatively evaluating the degree of influence of geological disasters in tourist attractions on road traffic based on traffic accessibility. Background technique [0002] At present, there are many evaluations on the impact of highway geological hazards due to the needs of engineering construction, but these evaluations are all carried out for a highway or a certain section of a highway, and the evaluation results are also segmented according to the risk of geological hazards of the highway. The hazard or impact of highways can only be qualitatively recognized through the proportion of high-risk sections and the density of geological hazard points. At the same time, it is difficult to compare between different highways or even different sections of the same highway. [0003] Most of the exist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G16Z99/00
Inventor 沈兴菊
Owner SOUTHWEST UNIVERSITY FOR NATIONALITIES
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