Traffic noise pollution model based on exposed crowd/area/acoustic environment functional area

A technology of traffic noise and exposed area, which is applied in special data processing applications, instruments, electrical digital data processing, etc., and can solve problems such as analysis, traffic noise evaluation indicators, difficult sound environment quality, etc.

Active Publication Date: 2013-12-11
SUN YAT SEN UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Due to the failure to take these factors into consideration, it is difficult to conduct a deeper analysis of the acoustic environment quality with the existing traffic noise evaluation indicators.

Method used

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  • Traffic noise pollution model based on exposed crowd/area/acoustic environment functional area
  • Traffic noise pollution model based on exposed crowd/area/acoustic environment functional area
  • Traffic noise pollution model based on exposed crowd/area/acoustic environment functional area

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Embodiment Construction

[0022] The present invention proposes a traffic noise pollution evaluation model NPI based on the exposed population, the exposed area and the functional area of ​​the acoustic environment, such as figure 1 , the specific process is:

[0023] A traffic noise pollution model based on exposed population\area\acoustic environment functional area, including:

[0024] S1. Divide the population density level area, distinguish the acoustic environment function area of ​​each area, and divide the small area by the acoustic environment function area; collect the basic information of traffic flow and the attribute information of roads and buildings, according to the basic information of traffic flow and roads and buildings Render traffic noise maps based on object attribute information;

[0025] S2. Obtain the exposed area s of each small area according to the parameters in S1 i , the number of exposed people n i and excessive noise level ΔL Ai , the exposed area refers to the area ...

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Abstract

The invention discloses a traffic noise pollution model based on an exposed crowd/area/acoustic environment functional area. On the basis of analyzing an existing traffic noise evaluation model and method, according to the characteristics of traffic noise subjective perceptibility and pollution locality, the model is provided by comprehensively considering the influence degree difference of traffic noise on the number of exposed crowds, the area of an exposed area and various acoustic environment functional areas, the urban traffic noise pollution total amount TNPI of an existing urban area, the average traffic noise pollution index APNI of the existing urban area, the traffic noise pollution total amount TPNPI of a urban area to be built and the average traffic noise pollution index APNPI of the urban area to be built are used for adapting to the evaluation of traffic noise pollution under different needs, and classification representation is carried out on the ANPIs. The evaluation model quantizes the degree of the noise pollution, the noise pollution degree of the urban area is evaluated more visually, and the model can be used as the punishment basis of the excessive emissions of traffic noise.

Description

technical field [0001] The present invention relates to noise pollution evaluation methods in the field of environmental protection, and more specifically, to a traffic noise pollution model NPI based on exposed population\area\acoustic environment functional area. Background technique [0002] The increasing urban traffic flow breeds road traffic noise, which gradually affects people's normal life and rest, and restricts the improvement of the living environment quality of urban residents. Since noise pollution belongs to energy pollution, and has the characteristics of subjective sensitivity and pollution localization, the evaluation method of noise pollution degree is different from that of other environmental pollutants. The biggest difficulty in the evaluation of noise pollution lies in how to organically combine the objective physical quantity of noise with factors such as the impact of noise on the population and the scope of the polluted area. [0003] In order to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 蔡铭谢林华马侠霖
Owner SUN YAT SEN UNIV
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