Abstract
In Korea, the national noise evaluation system for transportation noise was divided into two kinds of noise metrics: WECPNL (weighted equivalent continuous perceived noise level) for aircraft noise and LAeq for other noises. For administrative and political application of these metrics, a trade-off between them must be maintained. Traditionally, conversion between noise metrics has included correlations between the two metrics based on measured physical quantity. However, conversion between two noise metrics should consider the subjective or emotional aspects of people exposed to noise. In the present study, a field study was conducted in 11 sites in the vicinity of Gimpo airport to propose a rational method to convert Korean WECPNL into DENL (day-evening-night average sound level). Annoyance models for aircraft noise in terms of Korean WECPNL and DENL were established by linear regression analyses for 382 useful data. CBA (conversion based on noise annoyance) was proposed by using the two annoyance models. The validity of the proposed equivalent annoyance method was demonstrated by comparing among dose-response relationships in terms of measured DENL, DENL estimated by the CBA, and DENL estimated by the three empirical relations between WECPNL and DENL.
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Yoonho Jo received his Master’s degree in Mechanical and Aerospace Engineering at Seoul National University, Korea in 2009. He is a Ph.D. candidate in Mechanical and Aerospace Engineering, Seoul National University. His research interests are environmental noise prediction and noise-induced impact assessment.
Soogab Lee received his Ph.D. in Aeronautics and Astronautics at Stanford University, USA in 1992. He was a post-doctoral researcher in NASA Ames Research center in 1992 to 1995 and moved to Seoul National University. He has been a professor at Department of Mechanical and Aerospace Engineering at SNU since 1995.
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Cho, Y., Kim, J., Kim, T. et al. Comparative study on civil aircraft noise metrics as annoyance estimators for interoperability between other aircraft noise metrics. J MECH SCI TECHNOL 28, 3997–4003 (2014). https://doi.org/10.1007/s12206-014-0912-x
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DOI: https://doi.org/10.1007/s12206-014-0912-x