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Assessment and Verification of Prediction Model(NIER('99)) for Road Traffic Noise in the Apartment Complex  

Cho, Il-Hyoung (Institute of Strategy Environmental Research, Strategy Engineering Corporation)
SunWoo, Young (Department of Environmental Engineering, Kon-kuk University)
Lee, Nae-Hyun (Department of Environmental Division, Strategy Engineering Corporation)
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Abstract
We have carried out highway traffic noise prediction and measurement for 10 sites with representative road shapes and structures. A road traffic noise prediction model(NIER('99)) has been developed for environmental impact assessment in Korea. With the fitted regression analysis, the distribution ratio($R^2$) and Pearson correction coefficient(r) was 92.4% and 0.96 in $1^{st}$ floor, 38.7% and 0.66 in $3^{rd}$ floor, 42% and 0.65 in $5^{th}$ floor, 7.5% and 0.27 in $7^{th}$ floor, 28.4% and 0.53 in 10th floor, 35.6% and 0.60 in $13^{th}$ floor, 52.7% and 0.73 in $15^{th}$ floor, respectively. The measured values of the noise level except the 1st floor did not show a good agreement with the predicted noise level in the NIER('99) formula. Also, the NIER('99) formula demonstrated that the measured values weren't reasonably close to the predicted values, indicating the validity and adequacy of the predicted models with the fitted vs residual analysis in the 95% of confidence interval and 95% of predict interval. Using the equal variation on the basis of the residual vs fitted value, there was the significant difference for variation between $3^{rd}$ floor and $15^{th}$ floor except $1^{st}$ floor. The results suggested that the NIER('99) model obtained by the results according to the apartment floor must be improved and developed on the road traffic noise.
Keywords
NIER('99) Formula; Coefficient of Determination($R^2$); Pearson Correction Coefficient(r); The Fitted vs Residual Analysis;
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Times Cited By KSCI : 1  (Citation Analysis)
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