Acoustic environment functional area partitioning method based on road network and interest points

Abstract

The invention discloses an acoustic environment functional area partitioning method based on a road network and interest points. The method comprises the following steps: according to a road network picture, using image morphology to divide a city area into a plurality of subareas; taking a specific gravity of each interest point category in the area as area description parameters, screening the area description parameters, and then, clustering the area description parameters to obtain different area clustering categories; and according to the acoustic functional area requirement and the acoustic environment impact factor of each interest point category, realizing the calibration of an acoustic functional area of each interest point category, and carrying out acoustic functional area division on the area along a road. Since a large quantity of geographical spatial data in a city is applied to the acoustic functional area division, the method has the advantages of being high in automation degree, high in division efficiency and short in updating period and is suitable for evaluating the current acoustic environment quality of the city.

Description

technical field [0001] The invention relates to methods for dividing acoustic environment functional areas in noise environment assessment, and more specifically, to a method for dividing acoustic environment functional areas based on road networks and interest points. Background technique [0002] Noise pollution is one of the main pollution sources of the urban environment. It is necessary to evaluate and manage the noise pollution and the acoustic environment quality, and the division of the acoustic environment function area is the basis for the evaluation and management of the urban acoustic environment quality. The division of acoustic environment functional areas is to divide various areas of the city into different types of acoustic functional areas according to the functional characteristics and environmental quality requirements of the area, and to clarify the noise emission limits of each area, so as to prevent and control environmental noise pollution, protect and...

AI Technical Summary

Problems solved by technology

The sub-area is too large, and the same noise limit standard is used inside the area, making it difficult to carry out detailed noise pollution assessment

[0006] 2. The update speed of the acoustic function area is slow, unable to adapt to the status quo of urban development

At present, my country's urbanization process is accelerating, urban road network and regional expansion, traditional acoustic environment functional areas based on urban planning, use a lot of manual processing, and the update cycle takes about 10 years, most of which do not meet the actual requirements of urban acoustic environment

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