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Statistical Environmental Noise Mapping Based on Measured Noise Data

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2026, 35(3), pp.245~255
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering
  • Received : May 21, 2026
  • Accepted : June 9, 2026
  • Published : June 30, 2026

Kyoungmin Kim 1 Chang Seo Il ORD ID 1

1서울시립대학교

Accredited

ABSTRACT

This study aims to develop a machine learning-based statistical environmental noise prediction model for predicting and monitoring the spatial variability of noise exposure. To this end, measured noise data collected from the S-DoT monitoring network in Seoul were combined with surrounding urban components, including traffic, buildings, land, vegetation, and population, aggregated across multiple buffer radius. The developed model was then applied to the entire area of Seoul to conduct statistical environmental noise mapping and to propose its potential applications. The results showed that the Random Forest nonlinear regression model achieved the best predictive performance when urban component variables within a 40m buffer radius were used for 973 S-DoT monitoring sites. Based on 5-fold cross-validation, approximately 70% of the predicted noise levels were within ±5dB of the measured noise levels. In addition, SHAP analysis identified building density, represented by the Ground Space Index (GSI), and land cover variables, particularly residential and road land cover, as the most influential urban components affecting predicted noise levels. This study demonstrates the potential for developing statistical environmental noise maps using noise monitoring network data. The results can be used to identify areas requiring urban noise monitoring and to support the prioritization of noise reduction and management measures.

Citation status

* References for papers published after 2024 are currently being built.