항적자료를 이용한 공항주변 항공소음 평가에 관한 연구

Abstract

The aircraft noise is one of troublesome problems to the residents and the authorities around the airport. Although there is mentioned in the Korean standard method for measurement of aircraft noise, it is not easy to determine the level of the aircraft noise because the difficulty of the separation of between background noise and the determination of duration time of noise. In this study, the unreasonable factors for evaluation of aircraft noise are studied. Three descriptors of noise such as Lmax, Leq, and SEL are analyzed. The results of this study show that to determine the level of aircraft noise the descriptor of SEL is more objective than other two descriptors. It can be seen that many mistakes to evaluate the level of aircraft noise without the information of aircraft operation are revealed. So it is desirable to concern simultaneously with the information of the flight path data to evaluate the level of aircraft noise. In order to estimate the noise level during approach and departure of aircraft it can be recommend the empirical equations by multiple regression with the slant data, aircraft identifying noise level and the measured noise data. the noise levels predicted by these empirical equations are highly correlated to the measured noise data. It is able to choose these empirical equations to other airports with single runway. Working out a countermeasure against the aircraft noise are a long and tiresome journey. Therefore, this study recommends the relatively simple and prompt measures for reduction of aircraft noise level such as adaption of noise footprint of aircraft and the recommended criteria available for choice of kinds of aircraft based on the noise level and the demand of passengers. In order to reduce the level of aircraft noise and respond promptly against petitions or a complain, it is time to put in force these measures recommended from the results in this study.